githubmirror/xmlsec

apps/xmlsec.c
3 763 строки128 KB
lsh123
Update tutorial docs and examples (#1124)
11 апр 2026, 22:08
11 апр 2026, 22:0872604de
/**
 * XML Security Library (http://www.aleksey.com/xmlsec).
 *
 * This is free software; see the Copyright file in the source distribution for precise wording.
 *
 * Copyright (C) 2002-2026 Aleksey Sanin <aleksey@aleksey.com>. All Rights Reserved.
 */
/**
 * @brief XML Security Library command line utility.
 */
#include <stdlib.h>
#include <string.h>
#include <time.h>

#if !defined(_MSC_VER)
#include <libgen.h>
#endif /* defined(_MSC_VER) */

#if defined(_MSC_VER) && _MSC_VER < 1900
#define snprintf _snprintf
#endif /* defined(_MSC_VER) && _MSC_VER < 1900 */


#include <libxml/tree.h>
#include <libxml/xmlmemory.h>
#include <libxml/parser.h>
#include <libxml/xpath.h>
#include <libxml/xmlsave.h>
#include <libxml/xpathInternals.h>

#ifndef XMLSEC_NO_XSLT
#include <libxslt/xslt.h>
#include <libxslt/extensions.h>
#include <libxslt/xsltInternals.h>
#include <libxslt/xsltutils.h>
#include <libxslt/security.h>
#include <libexslt/exslt.h>
#endif /* XMLSEC_NO_XSLT */

#include <xmlsec/xmlsec.h>
#include <xmlsec/xmltree.h>
#include <xmlsec/base64.h>
#include <xmlsec/keys.h>
#include <xmlsec/keyinfo.h>
#include <xmlsec/keysmngr.h>
#include <xmlsec/io.h>
#include <xmlsec/transforms.h>
#include <xmlsec/xmldsig.h>
#include <xmlsec/xmlenc.h>
#include <xmlsec/parser.h>
#include <xmlsec/errors.h>

#include "crypto.h"
#include "cmdline.h"


#if defined(_MSC_VER) && defined(_CRTDBG_MAP_ALLOC)
#include <crtdbg.h>
#endif /*defined(_MSC_VER) && defined(_CRTDBG_MAP_ALLOC) */

static const char copyright[] =
    "Written by Aleksey Sanin <aleksey@aleksey.com>.\n\n"
    "Copyright (C) 2002-2026 Aleksey Sanin <aleksey@aleksey.com>. All Rights Reserved.\n"
    "This is free software: see the source for copying information.\n";

static const char bugs[] =
    "Report bugs to http://www.aleksey.com/xmlsec/bugs.html\n";

static const char helpCommands1[] =
    "Usage: xmlsec <command> [<options>] [<files>]\n"
    "\n"
    "xmlsec is a command line tool for signing, verifying, encrypting and\n"
    "decrypting XML documents. The allowed <command> values are:\n"
    "  --help      "    "\tdisplay this help information and exit\n"
    "  --help-all  "    "\tdisplay help information for all commands/options and exit\n"
    "  --help-<cmd>"    "\tdisplay help information for command <cmd> and exit\n"
    "  --version   "    "\tprint version information and exit\n"
    "  --keys      "    "\tkeys XML file manipulation\n";

static const char helpCommands2[] =
#ifndef XMLSEC_NO_XMLDSIG
    "  --sign      "    "\tsign data and output XML document\n"
    "  --verify    "    "\tverify signed document\n"
#endif /* XMLSEC_NO_XMLDSIG */
#ifndef XMLSEC_NO_XMLENC
    "  --encrypt   "    "\tencrypt data and output XML document\n"
    "  --decrypt   "    "\tdecrypt data from XML document\n"
#endif /* XMLSEC_NO_XMLENC */
    ;

static const char helpVersion[] =
    "Usage: xmlsec version\n"
    "Prints version information and exits\n";

static const char helpKeys[] =
    "Usage: xmlsec keys [<options>] <file>\n"
    "Creates a new XML keys file <file>\n";

static const char helpSign[] =
    "Usage: xmlsec sign [<options>] <file>\n"
    "Calculates XML Digital Signature using template file <file>\n";

static const char helpVerify[] =
    "Usage: xmlsec verify [<options>] <file>\n"
    "Verifies XML Digital Signature in the <file>\n";

static const char helpEncrypt[] =
    "Usage: xmlsec encrypt [<options>] <file>\n"
    "Encrypts data and creates XML Encryption using template file <file>\n";

static const char helpDecrypt[] =
    "Usage: xmlsec decrypt [<options>] <file>\n"
    "Decrypts XML Encryption data in the <file>\n";

static const char helpListKeyData[] =
    "Usage: xmlsec list-key-data\n"
    "Prints the list of known key data klasses\n";

static const char helpCheckKeyData[] =
    "Usage: xmlsec check-key-data <key-data-name> [<key-data-name> ... ]\n"
    "Checks the given key-data against the list of known key-data klasses\n";

static const char helpListTransforms[] =
    "Usage: xmlsec list-transforms\n"
    "Prints the list of known transform klasses\n";

static const char helpCheckTransforms[] =
    "Usage: xmlsec check-transforms <transform-name> [<transform-name> ... ]\n"
    "Checks the given transforms against the list of known transform klasses\n";

#define xmlSecAppCmdLineTopicGeneral            0x0001
#define xmlSecAppCmdLineTopicDSigCommon         0x0002
#define xmlSecAppCmdLineTopicDSigSign           0x0004
#define xmlSecAppCmdLineTopicDSigVerify         0x0008
#define xmlSecAppCmdLineTopicEncCommon          0x0010
#define xmlSecAppCmdLineTopicEncEncrypt         0x0020
#define xmlSecAppCmdLineTopicEncDecrypt         0x0040
/* #define UNUSED         0x0080 */
#define xmlSecAppCmdLineTopicKeysMngr           0x1000
#define xmlSecAppCmdLineTopicX509Certs          0x2000
#define xmlSecAppCmdLineTopicVersion            0x4000
#define xmlSecAppCmdLineTopicCryptoConfig       0x8000
#define xmlSecAppCmdLineTopicAll                0xFFFF

/******************************************************************************
 *
 * General configuration params
 *
  *****************************************************************************/
static xmlSecAppCmdLineParam helpParam = {
    xmlSecAppCmdLineTopicGeneral,
    "--help",
    "-h",
    "--help"
    "\n\tprint help information about the command",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam cryptoParam = {
    xmlSecAppCmdLineTopicCryptoConfig,
    "--crypto",
    NULL,
    "--crypto <name>"
    "\n\tthe name of the crypto engine to use from the following"
    "\n\tlist: openssl, mscrypto, nss, gnutls, gcrypt (if no crypto engine is"
    "\n\tspecified then the default one is used)",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam cryptoConfigParam = {
    xmlSecAppCmdLineTopicCryptoConfig,
    "--crypto-config",
    NULL,
    "--crypto-config <path>"
    "\n\tpath to crypto engine configuration",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam repeatParam = {
    xmlSecAppCmdLineTopicCryptoConfig,
    "--repeat",
    "-r",
    "--repeat <number>"
    "\n\trepeat the operation <number> times",
    xmlSecAppCmdLineParamTypeNumber,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam base64LineSizeParam = {
    xmlSecAppCmdLineTopicCryptoConfig,
    "--base64-line-size",
    NULL,
    "--base64-line-size <size>"
    "\n\tsets the max line size for base64 encodings to <size>",
    xmlSecAppCmdLineParamTypeNumber,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};
static xmlSecAppCmdLineParam transformBinChunkSizeParam = {
    xmlSecAppCmdLineTopicCryptoConfig,
    "--transform-binary-chunk-size",
    NULL,
    "--transform-binary-chunk-size <size>"
    "\n\tsets the transforms binary processing chunk size to <size>; "
    "\n\tincreasing chunk size might improve performance at the expense"
    "\n\tof increased memory usage",
    xmlSecAppCmdLineParamTypeNumber,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam verboseParam = {
    xmlSecAppCmdLineTopicGeneral,
    "--verbose",
    NULL,
    "--verbose"
    "\n\tprint detailed error messages",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam printCryptoErrorsParam = {
    xmlSecAppCmdLineTopicGeneral,
    "--print-crypto-library-errors",
    NULL,
    "--print-crypto-library-errors"
    "\n\tprint errors from crypto library (OpenSSL only)",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};


/******************************************************************************
 *
 * Keys Manager params
 *
  *****************************************************************************/
static xmlSecAppCmdLineParam genKeyParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--gen-key",
    "-g",
    "--gen-key[:<name>] <keyKlass>-<keySize>"
    "\n\tgenerate new <keyKlass> key of <keySize> bits size,"
    "\n\tset the key name to <name> and add the result to keys"
    "\n\tmanager (for example, \"--gen:MyKeyName rsa-1024\" generates"
    "\n\ta new 1024 bits RSA key and sets it's name to \"MyKeyName\")",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam keysFileParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--keys-file",
    "-k",
    "--keys-file <file>"
    "\n\tload keys from XML file",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam privkeyParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--privkey-pem",
    "--privkey",
    "--privkey-pem[:<name>] <file>[,<cafile>[,<cafile>[...]]]"
    "\n\tload private key from PEM file and certificates"
    "\n\tthat verify this key",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam privkeyDerParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--privkey-der",
    NULL,
    "--privkey-der[:<name>] <file>[,<cafile>[,<cafile>[...]]]"
    "\n\tload private key from DER file and certificates"
    "\n\tthat verify this key",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam pkcs8PemParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--pkcs8-pem",
    "--privkey-p8-pem",
    "--pkcs8-pem[:<name>] <file>[,<cafile>[,<cafile>[...]]]"
    "\n\tload private key from PKCS8 PEM file and PEM certificates"
    "\n\tthat verify this key",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam pkcs8DerParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--pkcs8-der",
    "--privkey-p8-der",
    "--pkcs8-der[:<name>] <file>[,<cafile>[,<cafile>[...]]]"
    "\n\tload private key from PKCS8 DER file and DER certificates"
    "\n\tthat verify this key",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

/* openssl specific privkey options */
static xmlSecAppCmdLineParam privkeyOpensslStoreParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--privkey-openssl-store",
    NULL,
    "--privkey-openssl-store[:<name>] <uri>"
    "\n\tload private key and certs through OpenSSL ossl_store interface (e.g. from HSM)",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam privkeyOpensslEngineParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--privkey-openssl-engine",
    NULL,
    "--privkey-openssl-engine[:<name>] <openssl-engine>;<openssl-key-id>[,<crtfile>[,<crtfile>[...]]]"
    "\n\tload private key by OpenSSL ENGINE interface; specify the name of engine"
    "\n\t(like with -engine params), the key specs (like with -inkey or -key params)"
    "\n\tand optionally certificates that verify this key",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};


static xmlSecAppCmdLineParam pubkeyParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--pubkey-pem",
    "--pubkey",
    "--pubkey-pem[:<name>] <file>"
    "\n\tload public key from PEM file",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam pubkeyDerParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--pubkey-der",
    NULL,
    "--pubkey-der[:<name>] <file>"
    "\n\tload public key from DER file",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

/* openssl specific pubkey options */
static xmlSecAppCmdLineParam pubkeyOpensslStoreParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--pubkey-openssl-store",
    NULL,
    "--pubkey-openssl-store[:<name>] <uri>"
    "\n\tload pubkey key and certs through OpenSSL ossl_store interface (e.g. from HSM)",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam pubkeyOpensslEngineParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--pubkey-openssl-engine",
    NULL,
    "--pubkey-openssl-engine[:<name>] <openssl-engine>;<openssl-key-id>[,<crtfile>[,<crtfile>[...]]]"
    "\n\tload public key by OpenSSL ENGINE interface; specify the name of engine"
    "\n\t(like with -engine params), the key specs (like with -inkey or -key params)"
    "\n\tand optionally certificates that verify this key",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};


#ifndef XMLSEC_NO_AES
static xmlSecAppCmdLineParam aesKeyParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--aes-key",
    "--aeskey",
    "--aes-key[:<name>] <file>"
    "\n\tload AES key from binary file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};
#endif /* XMLSEC_NO_AES */

#ifndef XMLSEC_NO_CAMELLIA
static xmlSecAppCmdLineParam camelliaKeyParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--camellia-key",
    "--camelliakey",
    "--camellia-key[:<name>] <file>"
    "\n\tload Camellia key from binary file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};
#endif /* XMLSEC_NO_CAMELLIA */

#ifndef XMLSEC_NO_CHACHA20
static xmlSecAppCmdLineParam chacha20KeyParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--chacha20-key",
    "--chacha20key",
    "--chacha20-key[:<name>] <file>"
    "\n\tload ChaCha20 key from binary file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};
#endif /* XMLSEC_NO_CHACHA20 */

#ifndef XMLSEC_NO_CONCATKDF
static xmlSecAppCmdLineParam concatKdfKeyParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--concatkdfkey",
    "--concatkdf-key",
    "--concatkdf-key[:<name>] <file>"
    "\n\tload ConcatKDF key from binary file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};
#endif /* XMLSEC_NO_CONCATKDF */

#ifndef XMLSEC_NO_DES
static xmlSecAppCmdLineParam desKeyParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--des-key",
    "--deskey",
    "--des-key[:<name>] <file>"
    "\n\tload DES key from binary file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};
#endif /* XMLSEC_NO_DES */

#ifndef XMLSEC_NO_HMAC
static xmlSecAppCmdLineParam hmacKeyParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--hmac-key",
    "--hmackey",
    "--hmac-key[:<name>] <file>"
    "\n\tload HMAC key from binary file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam hmacMinOutputLenParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--hmac-min-out-len",
    NULL,
    "--hmac-min-out-len <bits>"
    "\n\tsets minimum HMAC output length to <bits>",
    xmlSecAppCmdLineParamTypeNumber,
    xmlSecAppCmdLineParamFlagParamNameValue,
    NULL
};
#endif /* XMLSEC_NO_HMAC */


#ifndef XMLSEC_NO_PBKDF2
static xmlSecAppCmdLineParam pbkdf2KeyParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--pbkdf2key",
    "--pbkdf2-key",
    "--pbkdf2-key[:<name>] <file>"
    "\n\tload Pbkdf2 key from binary file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};
#endif /* XMLSEC_NO_PBKDF2 */

#ifndef XMLSEC_NO_HKDF
static xmlSecAppCmdLineParam hkdfKeyParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--hkdfkey",
    "--hkdf-key",
    "--hkdf-key[:<name>] <file>"
    "\n\tload HKDF key (IKM) from binary file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};
#endif /* XMLSEC_NO_HKDF */


static xmlSecAppCmdLineParam pwdParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--pwd",
    NULL,
    "--pwd <password>"
    "\n\tthe password to use for reading keys and certs",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam enabledKeyDataParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--enabled-key-data",
    NULL,
    "--enabled-key-data <list>"
    "\n\tcomma-separated list of key-data types to enable."
    "\n\tExample:"
    "\n\t  rsa,key-value,x509  -> populates <RSAKeyValue> and keeps <X509Data>"
    "\n\t                         when <KeyValue/> and <X509Data/> placeholders"
    "\n\t                         are present in the template."
    "\n\tUse \"--list-key-data\" to view full list of registered key data klasses."
    "\n\tBy default, all registered key data are enabled.",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam enabledRetrievalMethodUrisParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--enabled-retrieval-method-uris",
    NULL,
    "--enabled-retrieval-method-uris <list>"
    "\n\tcomma separated list of of the following values:"
    "\n\t\"empty\", \"same-doc\", \"local\",\"remote\" to restrict possible URI"
    "\n\tattribute values for the <dsig:RetrievalMethod> element.",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam enabledKeyInfoReferenceUrisParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--enabled-key-info-reference-uris",
    NULL,
    "--enabled-key-info-reference-uris <list>"
    "\n\tcomma separated list of of the following values:"
    "\n\t\"empty\", \"same-doc\", \"local\",\"remote\" to restrict possible URI"
    "\n\tattribute values for the <dsig11:KeyInfoReference> element.",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam laxKeySearchParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--lax-key-search",
    NULL,
    "--lax-key-search"
    "\n\tenable lax key search (e.g. by key type like \"rsa\") vs default strict key search"
    "\n\tmode using only information from <dsig:KeyInfo/> node (e.g. key name)",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam verifyKeysParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--verify-keys",
    NULL,
    "--verify-keys"
    "\n\tforce verification of public/private keys loaded from the command: keys are required"
    "\n\tto have a key certificate that will be verified against the certificates in the key store",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam verifyCrlsParam = {
    xmlSecAppCmdLineTopicX509Certs,
    "--verify-crls",
    NULL,
    "--verify-crls"
    "\n\tforce verification of loaded CRLs: CRLs are required to have a valid signature"
    "\n\tfrom an issuer certificate in the trusted or untrusted certificate store, and"
    "\n\tmust be within their validity period (thisUpdate/nextUpdate)",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

/******************************************************************************
 *
 * Common params
 *
  *****************************************************************************/
static xmlSecAppCmdLineParam sessionKeyParam = {
    xmlSecAppCmdLineTopicDSigSign | xmlSecAppCmdLineTopicEncEncrypt,
    "--session-key",
    NULL,
    "--session-key <keyKlass>-<keySize>"
    "\n\tgenerate new session <keyKlass> key of <keySize> bits size"
    "\n\t(for example, \"--session des-192\" generates a new 192 bits"
    "\n\tDES key for DES3 encryption)",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam outputParam = {
    xmlSecAppCmdLineTopicDSigCommon |
    xmlSecAppCmdLineTopicEncCommon,
    "--output",
    "-o",
    "--output <filename>"
    "\n\twrite result document to file <filename>; the <filename> can"
    "\n\tbe a template and include '{inputfile}' which will be repaced"
    "\n\twith the input filename",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam nodeIdParam = {
    xmlSecAppCmdLineTopicDSigCommon |
    xmlSecAppCmdLineTopicEncCommon,
    "--node-id",
    NULL,
    "--node-id <id>"
    "\n\tset the operation start point to the node with given <id>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam nodeNameParam = {
    xmlSecAppCmdLineTopicDSigCommon |
    xmlSecAppCmdLineTopicEncCommon,
    "--node-name",
    NULL,
    "--node-name [<namespace-uri>:]<name>"
    "\n\tset the operation start point to the first node"
    "\n\twith given <name> and <namespace> URI",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam nodeXPathParam = {
    xmlSecAppCmdLineTopicDSigCommon |
    xmlSecAppCmdLineTopicEncCommon,
    "--node-xpath",
    NULL,
    "--node-xpath <expr>"
    "\n\tset the operation start point to the first node"
    "\n\tselected by the specified XPath expression",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam dtdFileParam = {
    xmlSecAppCmdLineTopicDSigCommon |
    xmlSecAppCmdLineTopicEncCommon,
    "--dtd-file",
    NULL,
    "--dtd-file <file>"
    "\n\tload the specified file as the DTD",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam printDebugParam = {
    xmlSecAppCmdLineTopicDSigCommon |
    xmlSecAppCmdLineTopicEncCommon,
    "--print-debug",
    NULL,
    "--print-debug"
    "\n\tprint debug information to stdout",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam printXmlDebugParam = {
    xmlSecAppCmdLineTopicDSigCommon |
    xmlSecAppCmdLineTopicEncCommon,
    "--print-xml-debug",
    NULL,
    "--print-xml-debug"
    "\n\tprint debug information to stdout in xml format",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam idAttrParam = {
    xmlSecAppCmdLineTopicDSigCommon |
    xmlSecAppCmdLineTopicEncCommon,
    "--id-attr",
    NULL,
    "--id-attr[:<attr-name>] [<node-namespace-uri>:]<node-name>"
    "\n\tadds attributes <attr-name> (default value \"id\") from all nodes"
    "\n\twith<node-name> and namespace <node-namespace-uri> to the list of"
    "\n\tknown ID attributes; this is a hack and if you can use DTD or schema"
    "\n\tto declare ID attributes instead (see \"--dtd-file\" option)",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam addIdAttrParam = {
    xmlSecAppCmdLineTopicDSigCommon |
    xmlSecAppCmdLineTopicEncCommon,
    "--add-id-attr",
    NULL,
    "--add-id-attr <id-attribute-name>"
    "\n\tadds attribute <id-attribute-name> to all nodes in the document;"
    "\n\tthis is a hack and if you can use DTD or schema to declare ID attributes"
    "\n\tinstead (see \"--dtd-file\" option)",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam xxeParam = {
    xmlSecAppCmdLineTopicAll,
    "--xxe",
    NULL,
    "--xxe"
    "\n\tenable External Entity resolution."
    "\n\tWARNING: this may allow the reading of arbitrary files and URLs,"
    "\n\tcontrolled by the input XML document.  Use with caution!",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam urlMapParam = {
    xmlSecAppCmdLineTopicDSigCommon |
    xmlSecAppCmdLineTopicEncCommon,
    "--url-map",
    NULL,
    "--url-map:<url> <file>"
    "\n\tmaps a given <url> to the given <file> for loading external resources",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};


/******************************************************************************
 *
 * Common dsig params
 *
  *****************************************************************************/
#ifndef XMLSEC_NO_XMLDSIG
static xmlSecAppCmdLineParam ignoreManifestsParam = {
    xmlSecAppCmdLineTopicDSigCommon,
    "--ignore-manifests",
    NULL,
    "--ignore-manifests"
    "\n\tdo not process <dsig:Manifest> elements",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam storeReferencesParam = {
    xmlSecAppCmdLineTopicDSigCommon,
    "--store-references",
    NULL,
    "--store-references"
    "\n\tstore and print the result of <dsig:Reference/> element processing"
    "\n\tjust before calculating digest",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam storeSignaturesParam = {
    xmlSecAppCmdLineTopicDSigCommon,
    "--store-signatures",
    NULL,
    "--store-signatures"
    "\n\tstore and print the result of <dsig:Signature> processing"
    "\n\tjust before calculating signature",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam enabledRefUrisParam = {
    xmlSecAppCmdLineTopicDSigCommon,
    "--enabled-reference-uris",
    NULL,
    "--enabled-reference-uris <list>"
    "\n\tcomma separated list of of the following values:"
    "\n\t\"empty\", \"same-doc\", \"local\",\"remote\" to restrict possible URI"
    "\n\tattribute values for the <dsig:Reference> element",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam enableVisa3DHackParam = {
    xmlSecAppCmdLineTopicDSigCommon,
    "--enable-visa3d-hack",
    NULL,
    "--enable-visa3d-hack"
    "\n\tenables Visa3D protocol specific hack for URI attributes processing"
    "\n\twhen we are trying not to use XPath/XPointer engine; this is a hack"
    "\n\tand I don't know what else might be broken in your application when"
    "\n\tyou use it (also check \"--id-attr\" option because you might need it)",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam enableAsn1SignaturesHackParam = {
    xmlSecAppCmdLineTopicDSigCommon,
    "--enable-asn1-signatures-hack",
    NULL,
    "--enable-asn1-signatures-hack"
    "\n\tenables support for ASN1 signature values generated by some XMLDsig"
    "\n\timplementations.",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};


#endif /* XMLSEC_NO_XMLDSIG */

/******************************************************************************
 *
 * Enc params
 *
  *****************************************************************************/
#ifndef XMLSEC_NO_XMLENC
static xmlSecAppCmdLineParam enabledCipherRefUrisParam = {
    xmlSecAppCmdLineTopicEncCommon,
    "--enabled-cipher-reference-uris",
    NULL,
    "--enabled-cipher-reference-uris <list>"
    "\n\tcomma separated list of of the following values:"
    "\n\t\"empty\", \"same-doc\", \"local\",\"remote\" to restrict possible URI"
    "\n\tattribute values for the <enc:CipherReference> element",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam binaryDataParam = {
    xmlSecAppCmdLineTopicEncEncrypt,
    "--binary-data",
    "--binary",
    "--binary-data <file>"
    "\n\tbinary <file> to encrypt",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam xmlDataParam = {
    xmlSecAppCmdLineTopicEncEncrypt,
    "--xml-data",
    NULL,
    "--xml-data <file>"
    "\n\tXML <file> to encrypt",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};
#endif /* XMLSEC_NO_XMLENC */


/******************************************************************************
 *
 * X509 params
 *
  *****************************************************************************/
#ifndef XMLSEC_NO_X509
static xmlSecAppCmdLineParam pkcs12Param = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--pkcs12",
    NULL,
    "--pkcs12[:<name>] <file>"
    "\n\tload load private key from pkcs12 file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam pkcs12PersistParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--pkcs12-persist",
    NULL,
    "--pkcs12-persist"
    "\n\tpersist loaded private key",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam pubkeyCertParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--pubkey-cert-pem",
    "--pubkey-cert",
    "--pubkey-cert-pem[:<name>] <file>"
    "\n\tload public key from PEM cert file",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam pubkeyCertDerParam = {
    xmlSecAppCmdLineTopicKeysMngr,
    "--pubkey-cert-der",
    NULL,
    "--pubkey-cert-der[:<name>] <file>"
    "\n\tload public key from DER cert file",
    xmlSecAppCmdLineParamTypeStringList,
    xmlSecAppCmdLineParamFlagParamNameValue | xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam trustedParam = {
    xmlSecAppCmdLineTopicX509Certs,
    "--trusted-pem",
    "--trusted",
    "--trusted-pem <file>"
    "\n\tload trusted (root) certificate from PEM file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam trustedDerParam = {
    xmlSecAppCmdLineTopicX509Certs,
    "--trusted-der",
    NULL,
    "--trusted-der <file>"
    "\n\tload trusted (root) certificate from DER file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam untrustedParam = {
    xmlSecAppCmdLineTopicX509Certs,
    "--untrusted-pem",
    "--untrusted",
    "--untrusted-pem <file>"
    "\n\tload untrusted certificate from PEM file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam untrustedDerParam = {
    xmlSecAppCmdLineTopicX509Certs,
    "--untrusted-der",
    NULL,
    "--untrusted-der <file>"
    "\n\tload untrusted certificate from DER file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam crlPemParam = {
    xmlSecAppCmdLineTopicX509Certs,
    "--crl-pem",
    "--crl",
    "--crl-pem <file>"
    "\n\tload CRLs from PEM file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam crlDerParam = {
    xmlSecAppCmdLineTopicX509Certs,
    "--crl-der",
    NULL,
    "--crl-der <file>"
    "\n\tload CRLs from DER file <file>",
    xmlSecAppCmdLineParamTypeString,
    xmlSecAppCmdLineParamFlagMultipleValues,
    NULL
};

static xmlSecAppCmdLineParam verificationTimeParam = {
    xmlSecAppCmdLineTopicX509Certs,
    "--verification-time",
    NULL,
    "--verification-time <time>"
    "\n\tthe local time in \"YYYY-MM-DD HH:MM:SS\" format"
    "\n\tused certificates verification",
    xmlSecAppCmdLineParamTypeTime,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam verificationGmtTimeParam = {
    xmlSecAppCmdLineTopicX509Certs,
    "--verification-gmt-time",
    NULL,
    "--verification-gmt-time <time>"
    "\n\tthe GMT time in \"YYYY-MM-DD HH:MM:SS\" format"
    "\n\tused certificates verification",
    xmlSecAppCmdLineParamTypeGmtTime,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam X509SkipTimeChecksParam = {
    xmlSecAppCmdLineTopicX509Certs,
    "--X509-skip-time-checks",
    NULL,
    "--X509-skip-time-checks"
    "\n\tskip time checking of X509 certificates and CLRs",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam depthParam = {
    xmlSecAppCmdLineTopicX509Certs,
    "--depth",
    NULL,
    "--depth <number>"
    "\n\tmaximum certificates chain depth",
    xmlSecAppCmdLineParamTypeNumber,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam X509SkipStrictChecksParam = {
    xmlSecAppCmdLineTopicX509Certs,
    "--X509-skip-strict-checks",
    NULL,
    "--X509-skip-strict-checks"
    "\n\tskip strict checking of X509 data",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};

static xmlSecAppCmdLineParam X509DontVerifyCerts = {
    xmlSecAppCmdLineTopicX509Certs,
    "--insecure",
    NULL,
    "--insecure"
    "\n\tdo not verify certificates or CRLs",
    xmlSecAppCmdLineParamTypeFlag,
    xmlSecAppCmdLineParamFlagNone,
    NULL
};
#endif /* XMLSEC_NO_X509 */

static xmlSecAppCmdLineParamPtr parameters[] = {
    /* common dsig params */
#ifndef XMLSEC_NO_XMLDSIG
    &ignoreManifestsParam,
    &storeReferencesParam,
    &storeSignaturesParam,
    &enabledRefUrisParam,
    &enableVisa3DHackParam,
    &enableAsn1SignaturesHackParam,

#ifndef XMLSEC_NO_HMAC
    &hmacMinOutputLenParam,
#endif  /* XMLSEC_NO_HMAC */

#endif /* XMLSEC_NO_XMLDSIG */

    /* enc params */
#ifndef XMLSEC_NO_XMLENC
    &binaryDataParam,
    &xmlDataParam,
    &enabledCipherRefUrisParam,
#endif /* XMLSEC_NO_XMLENC */

    /* common dsig and enc parameters */
    &sessionKeyParam,
    &outputParam,
    &printDebugParam,
    &printXmlDebugParam,
    &dtdFileParam,
    &nodeIdParam,
    &nodeNameParam,
    &nodeXPathParam,
    &idAttrParam,
    &addIdAttrParam,

    /* Keys Manager params */
    &enabledKeyDataParam,
    &enabledRetrievalMethodUrisParam,
    &enabledKeyInfoReferenceUrisParam,
    &genKeyParam,
    &keysFileParam,
    &privkeyParam,
    &privkeyDerParam,
    &pkcs8PemParam,
    &pkcs8DerParam,
    &privkeyOpensslStoreParam,
    &privkeyOpensslEngineParam,
    &pubkeyParam,
    &pubkeyDerParam,
    &pubkeyOpensslStoreParam,
    &pubkeyOpensslEngineParam,
    &pwdParam,
    &laxKeySearchParam,
    &verifyKeysParam,

#ifndef XMLSEC_NO_AES
    &aesKeyParam,
#endif  /* XMLSEC_NO_AES */

#ifndef XMLSEC_NO_CAMELLIA
    &camelliaKeyParam,
#endif  /* XMLSEC_NO_CAMELLIA */

#ifndef XMLSEC_NO_CHACHA20
    &chacha20KeyParam,
#endif  /* XMLSEC_NO_CHACHA20 */

#ifndef XMLSEC_NO_CONCATKDF
    &concatKdfKeyParam,
#endif  /* XMLSEC_NO_CONCATKDF */

#ifndef XMLSEC_NO_DES
    &desKeyParam,
#endif  /* XMLSEC_NO_DES */

#ifndef XMLSEC_NO_HMAC
    &hmacKeyParam,
#endif  /* XMLSEC_NO_HMAC */

#ifndef XMLSEC_NO_PBKDF2
    &pbkdf2KeyParam,
#endif  /* XMLSEC_NO_PBKDF2 */

#ifndef XMLSEC_NO_HKDF
    &hkdfKeyParam,
#endif  /* XMLSEC_NO_HKDF */

#ifndef XMLSEC_NO_X509
    &pkcs12Param,
    &pkcs12PersistParam,
    &pubkeyCertParam,
    &pubkeyCertDerParam,
    &trustedParam,
    &untrustedParam,
    &trustedDerParam,
    &untrustedDerParam,
    &crlPemParam,
    &crlDerParam,
    &verifyCrlsParam,
    &verificationTimeParam,
    &verificationGmtTimeParam,
    &X509SkipTimeChecksParam,
    &depthParam,
    &X509SkipStrictChecksParam,
    &X509DontVerifyCerts,
#endif /* XMLSEC_NO_X509 */


    /* General configuration params */
    &cryptoParam,
    &cryptoConfigParam,
    &verboseParam,
    &printCryptoErrorsParam,
    &repeatParam,
    &base64LineSizeParam,
    &transformBinChunkSizeParam,
    &xxeParam,
    &urlMapParam,
    &helpParam,

    /* MUST be the last one */
    NULL
};

typedef enum {
    xmlSecAppCommandUnknown = 0,
    xmlSecAppCommandHelp,
    xmlSecAppCommandListKeyData,
    xmlSecAppCommandCheckKeyData,
    xmlSecAppCommandListTransforms,
    xmlSecAppCommandCheckTransforms,
    xmlSecAppCommandVersion,
    xmlSecAppCommandKeys,
    xmlSecAppCommandSign,
    xmlSecAppCommandVerify,
    xmlSecAppCommandEncrypt,
    xmlSecAppCommandDecrypt
} xmlSecAppCommand;

typedef struct _xmlSecAppXmlData                                xmlSecAppXmlData,
                                                                *xmlSecAppXmlDataPtr;
struct _xmlSecAppXmlData {
    xmlDocPtr   doc;
    xmlDtdPtr   dtd;
    xmlNodePtr  startNode;
};

static xmlSecAppXmlDataPtr      xmlSecAppXmlDataCreate          (const char* filename,
                                                                 const xmlChar* defStartNodeName,
                                                                 const xmlChar* defStartNodeNs);
static void                     xmlSecAppXmlDataDestroy         (xmlSecAppXmlDataPtr data);


static xmlSecAppCommand         xmlSecAppParseCommand           (const char* cmd,
                                                                 xmlSecAppCmdLineParamTopic* topics,
                                                                 xmlSecAppCommand* subCommand);
static void                     xmlSecAppPrintHelp              (xmlSecAppCommand command,
                                                                 xmlSecAppCmdLineParamTopic topics);
#define                         xmlSecAppPrintUsage()           xmlSecAppPrintHelp(xmlSecAppCommandUnknown, 0)
static int                      xmlSecAppInit                   (void);
static void                     xmlSecAppShutdown               (void);
static int                      xmlSecAppLoadKeys               (void);
static int                      xmlSecAppPrepareKeyInfoCtx      (xmlSecKeyInfoCtxPtr ctx);

#ifndef XMLSEC_NO_XMLDSIG
static int                      xmlSecAppSignFile               (const char* inputFileName,
                                                                 const char* outputFileNameTmpl);
static int                      xmlSecAppVerifyFile             (const char* inputFileName);
static int                      xmlSecAppPrepareDSigCtx         (xmlSecDSigCtxPtr dsigCtx);
static void                     xmlSecAppPrintDSigCtx           (xmlSecDSigCtxPtr dsigCtx);
#endif /* XMLSEC_NO_XMLDSIG */

#ifndef XMLSEC_NO_XMLENC
static int                      xmlSecAppEncryptFile            (const char* inputFileName,
                                                                 const char* outputFileNameTmpl);
static int                      xmlSecAppDecryptFile            (const char* inputFileName,
                                                                 const char* outputFileNameTmpl);
static int                      xmlSecAppPrepareEncCtx          (xmlSecEncCtxPtr encCtx);
static void                     xmlSecAppPrintEncCtx            (xmlSecEncCtxPtr encCtx);
#endif /* XMLSEC_NO_XMLENC */

static void                     xmlSecAppListKeyData            (void);
static int                      xmlSecAppCheckKeyData       (const char * name);
static void                     xmlSecAppListTransforms         (void);
static int                      xmlSecAppCheckTransform     (const char * name);

static xmlSecTransformUriType   xmlSecAppGetUriType             (const char* string);
static xmlOutputBufferPtr       xmlSecAppOpenFile               (const char* filename, const char* encoding);
static int                      xmlSecAppWriteResult            (const char* inputFileName,
                                                                 const char* outputFileNameTmpl,
                                                                 xmlDocPtr doc,
                                                                 xmlSecBufferPtr buffer,
                                                                 const xmlChar* encoding);
static int                      xmlSecAppAddIDAttr              (xmlNodePtr cur,
                                                                 const xmlChar* attr,
                                                                 const xmlChar* node,
                                                                 const xmlChar* nsHref);


static int                      xmlSecAppInputMatchCallback     (char const * filename);
static void*                    xmlSecAppInputOpenCallback      (char const * filename);
static int                      xmlSecAppInputReadCallback      (void * context,
                                                                 char * buffer,
                                                                 int len);
static int                      xmlSecAppInputCloseCallback     (void * context);

static int                      xmlSecAppExecute                (xmlSecAppCommand command,
                                                                const char** utf8_argv,
                                                                int argc);


#if defined(XMLSEC_WINDOWS) && defined(UNICODE) && defined(__MINGW32__)
int wmain(int argc, wchar_t* argv[]);
#endif /* defined(XMLSEC_WINDOWS) && defined(UNICODE) && defined(__MINGW32__) */

xmlSecKeysMngrPtr g_keysManager = NULL;
int g_repeats = 1;
int g_printDebug = 0;
int g_printVerboseDebug = 0;
int g_blockNetworkIO = 0;
clock_t g_totalTime = 0;
const char* g_xmlSecCryptoLibrary = NULL;
const char* gOutputFilename = NULL;

#if defined(XMLSEC_WINDOWS) && defined(UNICODE)
int wmain(int argc, wchar_t *argv[]) {
#else /* defined(XMLSEC_WINDOWS) && defined(UNICODE) */
int main(int argc, const char **argv) {
#endif /* defined(XMLSEC_WINDOWS) && defined(UNICODE) */
#if defined(XMLSEC_WINDOWS)
    size_t utf8_argv_size;
    int ii;
#endif /* defined(XMLSEC_WINDOWS) */
    const char** utf8_argv = NULL; /* TODO: this should be xmlChar** but it will break things downstream */
    xmlSecAppCmdLineParamTopic cmdLineTopics;
    xmlSecAppCommand command, subCommand;
    int pos;
    int res = 1;
    int ret;

#if defined(_MSC_VER) && defined(_CRTDBG_MAP_ALLOC)
    fprintf(stderr, "Enabling memory leaks detection\n");
    _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_CHECK_ALWAYS_DF | _CRTDBG_DELAY_FREE_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
#endif /* defined(_MSC_VER) && defined(_CRTDBG_MAP_ALLOC) */

#if defined(XMLSEC_WINDOWS)
    /* convert command line to UTF8 from locale or UNICODE */
    utf8_argv_size = sizeof(char*) * (size_t)argc;
    utf8_argv = (const char**)xmlMalloc(utf8_argv_size);
    if(utf8_argv == NULL) {
        fprintf(stderr, "Error: can not allocate memory (" XMLSEC_SIZE_T_FMT " bytes)\n",
            utf8_argv_size);
        goto done;
    }
    memset((char**)utf8_argv, 0, utf8_argv_size);
    for(ii = 0; ii < argc; ++ii) {
        utf8_argv[ii] = (const char*)xmlSecWin32ConvertTstrToUtf8(argv[ii]);
        if(utf8_argv[ii] == NULL) {
            fprintf(stderr, "Error: can not convert command line parameter at position %d to UTF8\n", ii);
            goto done;
        }
    }
#else /* defined(XMLSEC_WINDOWS) */
    utf8_argv = argv;
#endif /* defined(XMLSEC_WINDOWS) */

    /* read the command (first argument) */
    if(argc < 2) {
        fprintf(stderr, "Error: not enough arguments\n");
        xmlSecAppPrintUsage();
        goto done;
    }
    command = xmlSecAppParseCommand(utf8_argv[1], &cmdLineTopics, &subCommand);
    if(command == xmlSecAppCommandUnknown) {
        fprintf(stderr, "Error: unknown command \"%s\"\n", utf8_argv[1]);
        xmlSecAppPrintUsage();
        res = 0;
        goto done;
    }

    /* do as much as we can w/o initialization */
    if(command == xmlSecAppCommandHelp) {
        xmlSecAppPrintHelp(subCommand, cmdLineTopics);
        res = 0;
        goto done;
    } else if(command == xmlSecAppCommandVersion) {
        fprintf(stdout, "%s %s (%s)\n", PACKAGE, XMLSEC_VERSION, xmlSecGetDefaultCrypto());
        res = 0;
        goto done;
    }

    /* parse command line */
    pos = xmlSecAppCmdLineParamsListParse(parameters, cmdLineTopics, utf8_argv, argc, 2);
    if(pos < 0) {
        fprintf(stderr, "Error: invalid parameters\n");
        xmlSecAppPrintUsage();
        goto done;
    }

    /* is it a help request? */
    if(xmlSecAppCmdLineParamIsSet(&helpParam)) {
        xmlSecAppPrintHelp(command, cmdLineTopics);
        return(0);
    }

    /* we need to have some files at the end */
    switch(command) {
        case xmlSecAppCommandKeys:
        case xmlSecAppCommandSign:
        case xmlSecAppCommandVerify:
        case xmlSecAppCommandEncrypt:
        case xmlSecAppCommandDecrypt:
            if(pos >= argc) {
                fprintf(stderr, "Error: <file> parameter is required for this command\n");
                xmlSecAppPrintUsage();
                goto done;
            }
            break;
        default:
            break;
    }

    /* actual processing: skip all the parameters we already parsed */
    ret = xmlSecAppExecute(command, utf8_argv + pos, argc - pos);
    if(ret < 0) {
        goto done;
    }

    /* sucecss! */
    res = 0;

done:

    xmlSecAppCmdLineParamsListClean(parameters);
#if defined(XMLSEC_WINDOWS)
    if(utf8_argv != NULL) {
        for(ii = 0; ii < argc; ++ii) {
           if(utf8_argv[ii] != NULL) {
               xmlFree(BAD_CAST utf8_argv[ii]);
               utf8_argv[ii] = NULL;
           }
        }
        xmlFree(BAD_CAST utf8_argv);
        utf8_argv = NULL;
    }
#endif /* defined(XMLSEC_WINDOWS) */

#if defined(_MSC_VER) && defined(_CRTDBG_MAP_ALLOC)
    fprintf(stderr, "Printing memory leaks detected:\n");

    _CrtSetReportMode(_CRT_WARN,    _CRTDBG_MODE_FILE);
    _CrtSetReportMode(_CRT_ERROR,   _CRTDBG_MODE_FILE);
    _CrtSetReportMode(_CRT_ASSERT,  _CRTDBG_MODE_FILE);

    _CrtSetReportFile(_CRT_WARN,    _CRTDBG_FILE_STDERR);
    _CrtSetReportFile(_CRT_ERROR,   _CRTDBG_FILE_STDERR);
    _CrtSetReportFile(_CRT_ASSERT,  _CRTDBG_FILE_STDERR);
    if (_CrtDumpMemoryLeaks()) {
        fprintf(stderr, "Finished printing memory leaks detected\n");
        return(1);
    }
    fprintf(stderr, "No memory leaks detected\n");
#endif /*  defined(_MSC_VER) && defined(_CRTDBG_MAP_ALLOC) */

    return(res);
}


static int
xmlSecAppExecute(xmlSecAppCommand command, const char** utf8_argv, int argc) {
    const char* tmp = NULL;
    int res = - 1;
    int ii;

    /* now init the xmlsec and all other libs */
    /* ignore "--crypto" if we don't have dynamic loading */
    tmp = xmlSecAppCmdLineParamGetString(&cryptoParam);
#if !defined(XMLSEC_NO_CRYPTO_DYNAMIC_LOADING) && defined(XMLSEC_CRYPTO_DYNAMIC_LOADING)
    if((tmp != NULL) && (strcmp(tmp, "default") != 0)) {
        g_xmlSecCryptoLibrary = tmp;
    }
#else /* !defined(XMLSEC_NO_CRYPTO_DYNAMIC_LOADING) && defined(XMLSEC_CRYPTO_DYNAMIC_LOADING) */
    if((tmp != NULL) && (xmlStrcmp(BAD_CAST tmp, xmlSecGetDefaultCrypto()) != 0) && (xmlStrcmp(BAD_CAST tmp, BAD_CAST "default") != 0)) {
        fprintf(stderr, "Error: dynamic xmlsec-crypto library loading is disabled and the only available crypto library is '%s'\n", xmlSecGetDefaultCrypto());
        xmlSecAppPrintUsage();
        goto done;
    }
#endif /* !defined(XMLSEC_NO_CRYPTO_DYNAMIC_LOADING) && defined(XMLSEC_CRYPTO_DYNAMIC_LOADING) */

    if(xmlSecAppInit() < 0) {
        fprintf(stderr, "Error: initialization failed\n");
        xmlSecAppPrintUsage();
        goto done;
    }

    /* enable XXE? */
    if(xmlSecAppCmdLineParamIsSet(&xxeParam)) {
        /* new parser option XML_PARSE_NO_XXE available since 2.13.0 */
#if LIBXML_VERSION < 21300
        xmlSecSetExternalEntityLoader(NULL);     /* reset to libxml2's default handler */
#else  /* LIBXML_VERSION < 21300 */
        int options = xmlSecParserGetDefaultOptions();
        options &= (~(XML_PARSE_NO_XXE));
        xmlSecParserSetDefaultOptions(options);
#endif /* LIBXML_VERSION < 21300 */
    }

    /* enable verbose mode? */
    if(xmlSecAppCmdLineParamIsSet(&verboseParam)) {
       xmlSecErrorsDefaultCallbackEnableOutput(1);
    } else {
       xmlSecErrorsDefaultCallbackEnableOutput(0);
    }

    /* enable deatiled crypto library errors on exit */
    if(xmlSecAppCmdLineParamIsSet(&printCryptoErrorsParam)) {
       xmlSecErrorsPrintCryptoLibraryLogOnExitSet(1);
    }


    /* base64 line size */
    if(xmlSecAppCmdLineParamIsSet(&base64LineSizeParam)) {
        int lineSize = xmlSecAppCmdLineParamGetInt(&base64LineSizeParam, 0);
        if(lineSize <= 0) {
            fprintf(stderr, "Error: base64 line size should be greater than zero\n");
            xmlSecAppPrintUsage();
            goto done;
        }
        xmlSecBase64SetDefaultLineSize(lineSize);
    }

    /* transform bin chunk size */
    if(xmlSecAppCmdLineParamIsSet(&transformBinChunkSizeParam)) {
        int chunkSize = xmlSecAppCmdLineParamGetInt(&transformBinChunkSizeParam, 0);
        if(chunkSize <= 0) {
            fprintf(stderr, "Error: transform binary chunk size should be greater than zero\n");
            xmlSecAppPrintUsage();
            goto done;
        }
        xmlSecTransformCtxSetDefaultBinaryChunkSize((xmlSecSize)chunkSize);
    }

    /* load keys */
    if(xmlSecAppLoadKeys() < 0) {
        fprintf(stderr, "Error: keys manager creation failed\n");
        xmlSecAppPrintUsage();
        goto done;
    }

    /* get the "g_repeats" number */
    if(xmlSecAppCmdLineParamIsSet(&repeatParam) &&
       (xmlSecAppCmdLineParamGetInt(&repeatParam, 1) > 0)) {

        g_repeats = xmlSecAppCmdLineParamGetInt(&repeatParam, 1);
    }

    /* get the output file */
    gOutputFilename = xmlSecAppCmdLineParamGetString(&outputParam);

    /* execute requested number of times */
    for(; g_repeats > 0; --g_repeats) {
        switch(command) {
        case xmlSecAppCommandListKeyData:
            xmlSecAppListKeyData();
            break;
        case xmlSecAppCommandCheckKeyData:
            for(ii = 0; ii < argc; ++ii) {
                if(xmlSecAppCheckKeyData(utf8_argv[ii]) < 0) {
                    fprintf(stderr, "Error: key data \"%s\" not found\n", utf8_argv[ii]);
                    goto done;
                } else {
                    fprintf(stdout, "Key data \"%s\" found\n", utf8_argv[ii]);
                }
            }
            break;
        case xmlSecAppCommandListTransforms:
            xmlSecAppListTransforms();
            break;
        case xmlSecAppCommandCheckTransforms:
            for(ii = 0; ii < argc; ++ii) {
                if(xmlSecAppCheckTransform(utf8_argv[ii]) < 0) {
                    fprintf(stderr, "Error: transform \"%s\" not found\n", utf8_argv[ii]);
                    goto done;
                } else {
                    fprintf(stdout, "Transforms \"%s\" found\n", utf8_argv[ii]);
                }
            }
            break;
        case xmlSecAppCommandKeys:
            for(ii = 0; ii < argc; ++ii) {
                if(xmlSecAppCryptoSimpleKeysMngrSave(g_keysManager, utf8_argv[ii], xmlSecKeyDataTypeAny) < 0) {
                    fprintf(stderr, "Error: failed to save keys to file \"%s\"\n", utf8_argv[ii]);
                    goto done;
                }
            }
            break;
#ifndef XMLSEC_NO_XMLDSIG
        case xmlSecAppCommandSign:
            for(ii = 0; ii < argc; ++ii) {
                if(xmlSecAppSignFile(utf8_argv[ii], gOutputFilename) < 0) {
                    fprintf(stderr, "Error: failed to sign file \"%s\"\n", utf8_argv[ii]);
                    goto done;
                }
            }
            break;
        case xmlSecAppCommandVerify:
            for(ii = 0; ii < argc; ++ii) {
                if(xmlSecAppVerifyFile(utf8_argv[ii]) < 0) {
                    fprintf(stderr, "Error: failed to verify file \"%s\"\n", utf8_argv[ii]);
                    goto done;
                }
            }
            break;
#endif /* XMLSEC_NO_XMLDSIG */

#ifndef XMLSEC_NO_XMLENC
        case xmlSecAppCommandEncrypt:
            for(ii = 0; ii < argc; ++ii) {
                if(xmlSecAppEncryptFile(utf8_argv[ii], gOutputFilename) < 0) {
                    fprintf(stderr, "Error: failed to encrypt file with template \"%s\"\n", utf8_argv[ii]);
                    goto done;
                }
            }
            break;
        case xmlSecAppCommandDecrypt:
            for(ii = 0; ii < argc; ++ii) {
                if(xmlSecAppDecryptFile(utf8_argv[ii], gOutputFilename) < 0) {
                    fprintf(stderr, "Error: failed to decrypt file \"%s\"\n", utf8_argv[ii]);
                    goto done;
                }
            }
            break;
#endif /* XMLSEC_NO_XMLENC */

        default:
            fprintf(stderr, "Error: invalid command %d\n", (int)command);
            xmlSecAppPrintUsage();
            goto done;
        }
    }

    /* print perf stats results */
    if(xmlSecAppCmdLineParamIsSet(&repeatParam) &&
       (xmlSecAppCmdLineParamGetInt(&repeatParam, 1) > 0)) {
        long double msecs;

        g_repeats = xmlSecAppCmdLineParamGetInt(&repeatParam, 1);
        msecs = (1000 * g_totalTime) / (long double)CLOCKS_PER_SEC;
        fprintf(stderr, "Executed %d tests in %.2Lf msec\n", g_repeats, msecs);
    }

    /* success! */
    res = 0;

done:
    if(g_keysManager != NULL) {
        xmlSecKeysMngrDestroy(g_keysManager);
        g_keysManager = NULL;
    }
    xmlSecAppShutdown();
    return(res);
}

#ifndef XMLSEC_NO_XMLDSIG
static int
xmlSecAppSignFile(const char* inputFileName, const char* outputFileNameTmpl) {
    xmlSecAppXmlDataPtr data = NULL;
    xmlSecDSigCtx dsigCtx;
    clock_t start_time;
    int res = -1;

    if(inputFileName == NULL) {
        fprintf(stderr, "Error: input filename is not specified\n");
        return(-1);
    }

    if(xmlSecDSigCtxInitialize(&dsigCtx, g_keysManager) < 0) {
        fprintf(stderr, "Error: dsig context initialization failed\n");
        return(-1);
    }

    if(xmlSecAppPrepareDSigCtx(&dsigCtx) < 0) {
        fprintf(stderr, "Error: dsig context preparation failed\n");
        goto done;
    }

    /* parse template and select start node */
    data = xmlSecAppXmlDataCreate(inputFileName, xmlSecNodeSignature, xmlSecDSigNs);
    if(data == NULL) {
        fprintf(stderr, "Error: failed to load template \"%s\"\n", inputFileName);
        goto done;
    }


    /* sign */
    start_time = clock();
    if(xmlSecDSigCtxSign(&dsigCtx, data->startNode) < 0) {
        /* caller will print the error */
        goto done;
    }
    g_totalTime += clock() - start_time;

    /* return an error if siganture failed */
    if(dsigCtx.status != xmlSecDSigStatusSucceeded) {
        goto done;
    }

    if(g_repeats <= 1) {
        int ret;

        ret = xmlSecAppWriteResult(inputFileName, outputFileNameTmpl, data->doc, NULL, data->doc->encoding);
        if(ret < 0) {
            goto done;
        }
    }

    res = 0;

done:

    fprintf(stderr, "Signature status: %s\n", xmlSecDSigCtxGetStatusString(dsigCtx.status));
    if((dsigCtx.status == xmlSecDSigStatusInvalid) && (dsigCtx.failureReason != xmlSecDSigFailureReasonUnknown)) {
        fprintf(stderr, "Failure reason: %s\n", xmlSecDSigCtxGetFailureReasonString(dsigCtx.failureReason));
    }

    /* print debug info if requested */
    if(xmlSecAppCmdLineParamIsSet(&verboseParam)) {
        xmlSecAppPrintDSigCtx(&dsigCtx);
    }
    xmlSecDSigCtxFinalize(&dsigCtx);
    if(data != NULL) {
        xmlSecAppXmlDataDestroy(data);
    }
    return(res);
}

static int
xmlSecAppVerifyFile(const char* inputFileName) {
    xmlSecAppXmlDataPtr data = NULL;
    xmlSecDSigCtx dsigCtx;
    clock_t start_time;
    int res = -1;

    if(inputFileName == NULL) {
        fprintf(stderr, "Error: input filename is not specified\n");
        return(-1);
    }

    if(xmlSecDSigCtxInitialize(&dsigCtx, g_keysManager) < 0) {
        fprintf(stderr, "Error: dsig context initialization failed\n");
        return(-1);
    }
    if(xmlSecAppPrepareDSigCtx(&dsigCtx) < 0) {
        fprintf(stderr, "Error: dsig context preparation failed\n");
        goto done;
    }

    /* parse template and select start node */
    data = xmlSecAppXmlDataCreate(inputFileName, xmlSecNodeSignature, xmlSecDSigNs);
    if(data == NULL) {
        fprintf(stderr, "Error: failed to load document \"%s\"\n", inputFileName);
        goto done;
    }

    /* sign */
    start_time = clock();
    if(xmlSecDSigCtxVerify(&dsigCtx, data->startNode) < 0) {
        /* caller will print the error */
        goto done;
    }
    g_totalTime += clock() - start_time;

    /* return an error if verification failed */
    if(dsigCtx.status != xmlSecDSigStatusSucceeded) {
        goto done;
    }

    res = 0;

done:

    fprintf(stderr, "Verification status: %s\n", xmlSecDSigCtxGetStatusString(dsigCtx.status));
    if((dsigCtx.status == xmlSecDSigStatusInvalid) && (dsigCtx.failureReason != xmlSecDSigFailureReasonUnknown)) {
        fprintf(stderr, "Failure reason: %s\n", xmlSecDSigCtxGetFailureReasonString(dsigCtx.failureReason));
    }

    /* print debug info if requested */
    if(xmlSecAppCmdLineParamIsSet(&verboseParam)) {
        xmlSecDSigReferenceCtxPtr dsigRefCtx;
        xmlSecSize good, i, size;

        /* print stats about # of good/bad references/manifests */
        size = xmlSecPtrListGetSize(&(dsigCtx.signedInfoReferences));
        for(i = good = 0; i < size; ++i) {
            dsigRefCtx = (xmlSecDSigReferenceCtxPtr)xmlSecPtrListGetItem(&(dsigCtx.signedInfoReferences), i);
            if(dsigRefCtx == NULL) {
                fprintf(stderr,"Error: reference ctx is null\n");
                goto done;
            }
            if(dsigRefCtx->status == xmlSecDSigStatusSucceeded) {
                ++good;
            }
        }
        fprintf(stderr, "SignedInfo References (ok/all): " XMLSEC_SIZE_FMT "/" XMLSEC_SIZE_FMT "\n",
            good, size);

        size = xmlSecPtrListGetSize(&(dsigCtx.manifestReferences));
        for(i = good = 0; i < size; ++i) {
            dsigRefCtx = (xmlSecDSigReferenceCtxPtr)xmlSecPtrListGetItem(&(dsigCtx.manifestReferences), i);
            if(dsigRefCtx == NULL) {
                fprintf(stderr,"Error: reference ctx is null\n");
                goto done;
            }
            if(dsigRefCtx->status == xmlSecDSigStatusSucceeded) {
                ++good;
            }
        }
        fprintf(stderr, "Manifests References (ok/all): " XMLSEC_SIZE_FMT "/" XMLSEC_SIZE_FMT "\n",
            good, size);

        xmlSecAppPrintDSigCtx(&dsigCtx);
    }
    xmlSecDSigCtxFinalize(&dsigCtx);
    if(data != NULL) {
        xmlSecAppXmlDataDestroy(data);
    }
    return(res);
}

static int
xmlSecAppPrepareDSigCtx(xmlSecDSigCtxPtr dsigCtx) {
    if(dsigCtx == NULL) {
        fprintf(stderr, "Error: dsig context is null\n");
        return(-1);
    }

    /* set key info params */
    if(xmlSecAppPrepareKeyInfoCtx(&(dsigCtx->keyInfoReadCtx)) < 0) {
        fprintf(stderr, "Error: failed to prepare read key info context\n");
        return(-1);
    }
    if(xmlSecAppPrepareKeyInfoCtx(&(dsigCtx->keyInfoWriteCtx)) < 0) {
        fprintf(stderr, "Error: failed to prepare write key info context\n");
        return(-1);
    }

    if(xmlSecAppCmdLineParamGetString(&sessionKeyParam) != NULL) {
        dsigCtx->signKey = xmlSecAppCryptoKeyGenerate(xmlSecAppCmdLineParamGetString(&sessionKeyParam),
                                NULL, xmlSecKeyDataTypeSession);
        if(dsigCtx->signKey == NULL) {
            fprintf(stderr, "Error: failed to generate a session key \"%s\"\n",
                    xmlSecAppCmdLineParamGetString(&sessionKeyParam));
            return(-1);
        }
    }

    /* set dsig params */
    if(xmlSecAppCmdLineParamIsSet(&ignoreManifestsParam)) {
        dsigCtx->flags |= XMLSEC_DSIG_FLAGS_IGNORE_MANIFESTS;
    }
    if(xmlSecAppCmdLineParamIsSet(&storeReferencesParam)) {
        dsigCtx->flags |= XMLSEC_DSIG_FLAGS_STORE_SIGNEDINFO_REFERENCES |
                          XMLSEC_DSIG_FLAGS_STORE_MANIFEST_REFERENCES;
        g_printDebug = 1;
    }
    if(xmlSecAppCmdLineParamIsSet(&storeSignaturesParam)) {
        dsigCtx->flags |= XMLSEC_DSIG_FLAGS_STORE_SIGNATURE;
        g_printDebug = 1;
    }
    if(xmlSecAppCmdLineParamIsSet(&enableVisa3DHackParam)) {
        dsigCtx->flags |= XMLSEC_DSIG_FLAGS_USE_VISA3D_HACK;
    }
    if(xmlSecAppCmdLineParamIsSet(&enableAsn1SignaturesHackParam)) {
        dsigCtx->flags |= XMLSEC_DSIG_FLAGS_USE_ASN1_SIGNATURE_VALUES;
    }

#ifndef XMLSEC_NO_HMAC
    if(xmlSecAppCmdLineParamIsSet(&hmacMinOutputLenParam)) {
        int minHmacOutLen =  (int)xmlSecTransformHmacGetMinOutputBitsSize();

        minHmacOutLen = xmlSecAppCmdLineParamGetInt(&hmacMinOutputLenParam, minHmacOutLen);
        xmlSecTransformHmacSetMinOutputBitsSize((xmlSecSize)minHmacOutLen);
    }
#endif  /* XMLSEC_NO_HMAC */

    if(xmlSecAppCmdLineParamGetStringList(&enabledRefUrisParam) != NULL) {
        dsigCtx->enabledReferenceUris = xmlSecAppGetUriType(
                    xmlSecAppCmdLineParamGetStringList(&enabledRefUrisParam));
        if(dsigCtx->enabledReferenceUris == xmlSecTransformUriTypeNone) {
            fprintf(stderr, "Error: failed to parse \"%s\"\n",
                    xmlSecAppCmdLineParamGetStringList(&enabledRefUrisParam));
            return(-1);
        }
    }

    return(0);
}

static void
xmlSecAppPrintDSigCtx(xmlSecDSigCtxPtr dsigCtx) {
    if(dsigCtx == NULL) {
        return;
    }

    /* print debug info if requested */
    if((g_printDebug != 0) || xmlSecAppCmdLineParamIsSet(&printDebugParam)) {
        xmlSecDSigCtxDebugDump(dsigCtx, stdout);
    }

    if(xmlSecAppCmdLineParamIsSet(&printXmlDebugParam)) {
        xmlSecDSigCtxDebugXmlDump(dsigCtx, stdout);
    }
}

#endif /* XMLSEC_NO_XMLDSIG */

#ifndef XMLSEC_NO_XMLENC
static int
xmlSecAppEncryptFile(const char* inputFileName, const char* outputFileNameTmpl) {
    xmlSecAppXmlDataPtr data = NULL;
    xmlSecEncCtx encCtx;
    xmlDocPtr doc = NULL;
    xmlNodePtr startTmplNode;
    clock_t start_time;
    int res = -1;

    if(inputFileName == NULL) {
        fprintf(stderr, "Error: input filename is not specified\n");
        return(-1);
    }

    if(xmlSecEncCtxInitialize(&encCtx, g_keysManager) < 0) {
        fprintf(stderr, "Error: enc context initialization failed\n");
        return(-1);
    }
    if(xmlSecAppPrepareEncCtx(&encCtx) < 0) {
        fprintf(stderr, "Error: enc context preparation failed\n");
        goto done;
    }

    /* parse doc and find template node */
    doc = xmlSecParseFile(inputFileName);
    if(doc == NULL) {
        fprintf(stderr, "Error: failed to parse xml file \"%s\"\n",
                inputFileName);
        goto done;
    }
    startTmplNode = xmlSecFindNode(xmlDocGetRootElement(doc), xmlSecNodeEncryptedData, xmlSecEncNs);
    if(startTmplNode == NULL) {
        fprintf(stderr, "Error: failed to find default node with name=\"%s\"\n",
                xmlSecNodeEncryptedData);
        goto done;
    }

    if(xmlSecAppCmdLineParamGetString(&binaryDataParam) != NULL) {
        /* encrypt */
        start_time = clock();
        if(xmlSecEncCtxUriEncrypt(&encCtx, startTmplNode, BAD_CAST xmlSecAppCmdLineParamGetString(&binaryDataParam)) < 0) {
            fprintf(stderr, "Error: failed to encrypt file \"%s\"\n",
                    xmlSecAppCmdLineParamGetString(&binaryDataParam));
            goto done;
        }
        g_totalTime += clock() - start_time;
    } else if(xmlSecAppCmdLineParamGetString(&xmlDataParam) != NULL) {
        /* parse file and select node for encryption */
        data = xmlSecAppXmlDataCreate(xmlSecAppCmdLineParamGetString(&xmlDataParam), NULL, NULL);
        if(data == NULL) {
            fprintf(stderr, "Error: failed to load file \"%s\"\n",
                    xmlSecAppCmdLineParamGetString(&xmlDataParam));
            goto done;
        }

        /* encrypt */
        start_time = clock();
        if(xmlSecEncCtxXmlEncrypt(&encCtx, startTmplNode, data->startNode) < 0) {
            fprintf(stderr, "Error: failed to encrypt xml file \"%s\"\n",
                    xmlSecAppCmdLineParamGetString(&xmlDataParam));
            goto done;
        }
        g_totalTime += clock() - start_time;
    } else {
        fprintf(stderr, "Error: encryption data not specified (use \"--xml-data\" or \"--binary-data\" options)\n");
        goto done;
    }

    /* print out result only once per execution */
    if(g_repeats <= 1) {
        if(encCtx.resultReplaced) {
            if(xmlSecAppWriteResult(inputFileName, outputFileNameTmpl, (data != NULL) ? data->doc : doc, NULL, (data != NULL) ? data->doc->encoding : doc->encoding) < 0) {
                goto done;
            }
        } else {
            if(xmlSecAppWriteResult(inputFileName, outputFileNameTmpl, NULL, encCtx.result, (data != NULL) ? data->doc->encoding : doc->encoding) < 0) {
                goto done;
            }
        }
    }
    res = 0;

done:
    if(encCtx.failureReason != xmlSecEncFailureReasonUnknown) {
        fprintf(stderr, "Failure reason: %s\n", xmlSecEncCtxGetFailureReasonString(encCtx.failureReason));
    }

    /* print debug info if requested */
    if(xmlSecAppCmdLineParamIsSet(&verboseParam)) {
        xmlSecAppPrintEncCtx(&encCtx);
    }
    xmlSecEncCtxFinalize(&encCtx);

    if(data != NULL) {
        xmlSecAppXmlDataDestroy(data);
    }
    if(doc != NULL) {
        xmlFreeDoc(doc);
    }
    return(res);
}

static int
xmlSecAppDecryptFile(const char* inputFileName, const char* outputFileNameTmpl) {
    xmlSecAppXmlDataPtr data = NULL;
    xmlSecEncCtx encCtx;
    clock_t start_time;
    int res = -1;

    if(inputFileName == NULL) {
        fprintf(stderr, "Error: input filename is not specified\n");
        return(-1);
    }

    if(xmlSecEncCtxInitialize(&encCtx, g_keysManager) < 0) {
        fprintf(stderr, "Error: enc context initialization failed\n");
        return(-1);
    }
    if(xmlSecAppPrepareEncCtx(&encCtx) < 0) {
        fprintf(stderr, "Error: enc context preparation failed\n");
        goto done;
    }

    /* parse template and select start node */
    data = xmlSecAppXmlDataCreate(inputFileName, xmlSecNodeEncryptedData, xmlSecEncNs);
    if(data == NULL) {
        fprintf(stderr, "Error: failed to load template \"%s\"\n", inputFileName);
        goto done;
    }

    start_time = clock();
    if(xmlSecEncCtxDecrypt(&encCtx, data->startNode) < 0) {
        fprintf(stderr, "Error: failed to decrypt file\n");
        goto done;
    }
    g_totalTime += clock() - start_time;

    /* print out result only once per execution */
    if(g_repeats <= 1) {
        if(encCtx.resultReplaced) {
            if(xmlSecAppWriteResult(inputFileName, outputFileNameTmpl, data->doc, NULL, data->doc->encoding) < 0) {
                goto done;
            }
        } else {
            if(xmlSecAppWriteResult(inputFileName, outputFileNameTmpl, NULL, encCtx.result, data->doc->encoding) < 0) {
                goto done;
            }
        }
    }
    res = 0;

done:
    if(encCtx.failureReason != xmlSecEncFailureReasonUnknown) {
        fprintf(stderr, "Failure reason: %s\n", xmlSecEncCtxGetFailureReasonString(encCtx.failureReason));
    }

    /* print debug info if requested */
    if(xmlSecAppCmdLineParamIsSet(&verboseParam)) {
        xmlSecAppPrintEncCtx(&encCtx);
    }
    xmlSecEncCtxFinalize(&encCtx);

    if(data != NULL) {
        xmlSecAppXmlDataDestroy(data);
    }
    return(res);
}

static int
xmlSecAppPrepareEncCtx(xmlSecEncCtxPtr encCtx) {
    if(encCtx == NULL) {
        fprintf(stderr, "Error: enc context is null\n");
        return(-1);
    }

    /* set key info params */
    if(xmlSecAppPrepareKeyInfoCtx(&(encCtx->keyInfoReadCtx)) < 0) {
        fprintf(stderr, "Error: failed to prepare read key info context\n");
        return(-1);
    }
    if(xmlSecAppPrepareKeyInfoCtx(&(encCtx->keyInfoWriteCtx)) < 0) {
        fprintf(stderr, "Error: failed to prepare write key info context\n");
        return(-1);
    }

    if(xmlSecAppCmdLineParamGetString(&sessionKeyParam) != NULL) {
        encCtx->encKey = xmlSecAppCryptoKeyGenerate(xmlSecAppCmdLineParamGetString(&sessionKeyParam),
                                NULL, xmlSecKeyDataTypeSession);
        if(encCtx->encKey == NULL) {
            fprintf(stderr, "Error: failed to generate a session key \"%s\"\n",
                    xmlSecAppCmdLineParamGetString(&sessionKeyParam));
            return(-1);
        }
    }

    if(xmlSecAppCmdLineParamGetStringList(&enabledCipherRefUrisParam) != NULL) {
        encCtx->transformCtx.enabledUris = xmlSecAppGetUriType(
                    xmlSecAppCmdLineParamGetStringList(&enabledCipherRefUrisParam));
        if(encCtx->transformCtx.enabledUris == xmlSecTransformUriTypeNone) {
            fprintf(stderr, "Error: failed to parse \"%s\"\n",
                    xmlSecAppCmdLineParamGetStringList(&enabledCipherRefUrisParam));
            return(-1);
        }
    }
    return(0);
}

static void
xmlSecAppPrintEncCtx(xmlSecEncCtxPtr encCtx) {
    if(encCtx == NULL) {
        return;
    }

    /* print debug info if requested */
    if((g_printDebug != 0) || xmlSecAppCmdLineParamIsSet(&printDebugParam)) {
        xmlSecEncCtxDebugDump(encCtx, stdout);
    }

    if(xmlSecAppCmdLineParamIsSet(&printXmlDebugParam)) {
        xmlSecEncCtxDebugXmlDump(encCtx, stdout);
    }
}

#endif /* XMLSEC_NO_XMLENC */

static void
xmlSecAppListKeyData(void) {
    fprintf(stdout, "Registered key data klasses:\n");
    xmlSecKeyDataIdListDebugDump(xmlSecKeyDataIdsGet(), stdout);
}

static int
xmlSecAppCheckKeyData(const char * name) {
    if(xmlSecKeyDataIdListFindByName(xmlSecKeyDataIdsGet(), BAD_CAST name, xmlSecKeyDataUsageAny) == xmlSecKeyDataIdUnknown) {
        return -1;
    }
    return 0;
}

static void
xmlSecAppListTransforms(void) {
    fprintf(stdout, "Registered transform klasses:\n");
    xmlSecTransformIdListDebugDump(xmlSecTransformIdsGet(), stdout);
}

static int
xmlSecAppCheckTransform(const char * name) {
    if(xmlSecTransformIdListFindByName(xmlSecTransformIdsGet(), BAD_CAST name, xmlSecTransformUsageAny) == xmlSecTransformIdUnknown) {
        return -1;
    }
    return 0;
}

static int
xmlSecAppPrepareKeyInfoCtx(xmlSecKeyInfoCtxPtr keyInfoCtx) {
    xmlSecAppCmdLineValuePtr value;
    int ret;
    xmlSecKeyDataId dataId;
    const char* p;

    if(keyInfoCtx == NULL) {
        fprintf(stderr, "Error: key info context is null\n");
        return(-1);
    }

#ifndef XMLSEC_NO_X509
    if(xmlSecAppCmdLineParamIsSet(&verificationTimeParam)) {
        keyInfoCtx->certsVerificationTime = xmlSecAppCmdLineParamGetTime(&verificationTimeParam, 0);
    }
    if(xmlSecAppCmdLineParamIsSet(&verificationGmtTimeParam)) {
        keyInfoCtx->certsVerificationTime = xmlSecAppCmdLineParamGetTime(&verificationGmtTimeParam, 0);
    }
    if(xmlSecAppCmdLineParamIsSet(&X509SkipTimeChecksParam)) {
        keyInfoCtx->flags |= XMLSEC_KEYINFO_FLAGS_X509DATA_SKIP_TIME_CHECKS;
    }
    if(xmlSecAppCmdLineParamIsSet(&depthParam)) {
        keyInfoCtx->certsVerificationDepth = xmlSecAppCmdLineParamGetInt(&depthParam, 0);
    }
    if(xmlSecAppCmdLineParamIsSet(&X509SkipStrictChecksParam)) {
        keyInfoCtx->flags |= XMLSEC_KEYINFO_FLAGS_X509DATA_SKIP_STRICT_CHECKS;
    }
    if(xmlSecAppCmdLineParamIsSet(&X509DontVerifyCerts)) {
        keyInfoCtx->flags |= XMLSEC_KEYINFO_FLAGS_X509DATA_DONT_VERIFY_CERTS;
    }
#endif /* XMLSEC_NO_X509 */

    if(xmlSecAppCmdLineParamIsSet(&laxKeySearchParam)) {
        keyInfoCtx->flags |= XMLSEC_KEYINFO_FLAGS_LAX_KEY_SEARCH;
    }

    /* read enabled key data list */
    for(value = enabledKeyDataParam.value; value != NULL; value = value->next) {
        if(value->strListValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    enabledKeyDataParam.fullName);
            return(-1);
        }

        for(p = value->strListValue; (p != NULL) && ((*p) != '\0'); p += strlen(p) + 1) {
            dataId = xmlSecKeyDataIdListFindByName(xmlSecKeyDataIdsGet(), BAD_CAST p, xmlSecKeyDataUsageAny);
            if(dataId == xmlSecKeyDataIdUnknown) {
                fprintf(stderr, "Error: key data \"%s\" is unknown.\n", p);
                return(-1);
            }
            ret = xmlSecPtrListAdd(&(keyInfoCtx->enabledKeyData), (const xmlSecPtr)dataId);
            if(ret < 0) {
                fprintf(stderr, "Error: failed to enable key data \"%s\".\n", p);
                return(-1);
            }
        }
    }

    /* read enabled RetrievalMethod uris */
    if(xmlSecAppCmdLineParamGetStringList(&enabledRetrievalMethodUrisParam) != NULL) {
        keyInfoCtx->retrievalMethodCtx.enabledUris = xmlSecAppGetUriType(
                    xmlSecAppCmdLineParamGetStringList(&enabledRetrievalMethodUrisParam));
        if(keyInfoCtx->retrievalMethodCtx.enabledUris == xmlSecTransformUriTypeNone) {
            fprintf(stderr, "Error: failed to parse \"%s\"\n",
                    xmlSecAppCmdLineParamGetStringList(&enabledRetrievalMethodUrisParam));
            return(-1);
        }
    }

    /* read enabled KeyInfoReference uris */
    if(xmlSecAppCmdLineParamGetStringList(&enabledKeyInfoReferenceUrisParam) != NULL) {
        keyInfoCtx->keyInfoReferenceCtx.enabledUris = xmlSecAppGetUriType(
                    xmlSecAppCmdLineParamGetStringList(&enabledKeyInfoReferenceUrisParam));
        if(keyInfoCtx->keyInfoReferenceCtx.enabledUris == xmlSecTransformUriTypeNone) {
            fprintf(stderr, "Error: failed to parse \"%s\"\n",
                    xmlSecAppCmdLineParamGetStringList(&enabledKeyInfoReferenceUrisParam));
            return(-1);
        }
    }

    return(0);
}

static int
xmlSecAppLoadKeys(void) {
    xmlSecAppCmdLineValuePtr value;
    xmlSecKeyInfoCtxPtr keyInfoCtx;
    int verifyKeys = 0;
    int ret;

    if(g_keysManager != NULL) {
        fprintf(stderr, "Error: keys manager already initialized.\n");
        return(-1);
    }

    /* create and initialize keys manager */
    g_keysManager = xmlSecKeysMngrCreate();
    if(g_keysManager == NULL) {
        fprintf(stderr, "Error: failed to create keys manager.\n");
        return(-1);
    }
    if(xmlSecAppCryptoSimpleKeysMngrInit(g_keysManager) < 0) {
        fprintf(stderr, "Error: failed to initialize keys manager.\n");
        return(-1);
    }

    /* create and initialize key info ctx */
    keyInfoCtx = xmlSecKeyInfoCtxCreate(g_keysManager);
    if(keyInfoCtx == NULL) {
        fprintf(stderr, "Error: failed to initialize key info ctx.\n");
        return(-1);
    }
    ret = xmlSecAppPrepareKeyInfoCtx(keyInfoCtx);
    if(ret < 0) {
        fprintf(stderr, "Error: failed to read key info ctx params.\n");
        xmlSecKeyInfoCtxDestroy(keyInfoCtx);
        return(-1);
    }

    /* do we need to verify public/private keys? */
    if(xmlSecAppCmdLineParamIsSet(&verifyKeysParam)) {
       verifyKeys = 1;
    }

    /* do we need to verify CRLs? */
    int verifyCrls = 0;
    if(xmlSecAppCmdLineParamIsSet(&verifyCrlsParam)) {
       verifyCrls = 1;
    }

    /* generate new keys */
    for(value = genKeyParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n", genKeyParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrKeyGenerate(g_keysManager, value->strValue, value->paramNameValue) < 0) {
            fprintf(stderr, "Error: failed to generate key \"%s\".\n", value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }


    /******************************************************************************
     *
     * FIRST, READ ALL CERTIFICATES
     *
      *****************************************************************************/

#ifndef XMLSEC_NO_X509
    /* read all trusted certs */
    for(value = trustedParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n", trustedParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrCertLoad(g_keysManager,
                    value->strValue, xmlSecKeyDataFormatPem,
                    xmlSecKeyDataTypeTrusted) < 0) {
            fprintf(stderr, "Error: failed to load trusted cert from \"%s\".\n",
                    value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }
    for(value = trustedDerParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n", trustedDerParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrCertLoad(g_keysManager,
                    value->strValue, xmlSecKeyDataFormatDer,
                    xmlSecKeyDataTypeTrusted) < 0) {
            fprintf(stderr, "Error: failed to load trusted cert from \"%s\".\n",
                    value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }

    /* read all untrusted certs */
    for(value = untrustedParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n", untrustedParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrCertLoad(g_keysManager,
                    value->strValue, xmlSecKeyDataFormatPem,
                    xmlSecKeyDataTypeNone) < 0) {
            fprintf(stderr, "Error: failed to load untrusted cert from \"%s\".\n",
                    value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }
    for(value = untrustedDerParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n", untrustedDerParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrCertLoad(g_keysManager,
                    value->strValue, xmlSecKeyDataFormatDer,
                    xmlSecKeyDataTypeNone) < 0) {
            fprintf(stderr, "Error: failed to load untrusted cert from \"%s\".\n",
                    value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }

    /* read all crls*/
    for(value = crlPemParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n", crlPemParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
        if(verifyCrls != 0) {
            if(xmlSecAppCryptoSimpleKeysMngrCrlLoadAndVerify(g_keysManager,
                        value->strValue, xmlSecKeyDataFormatPem, keyInfoCtx) < 0) {
                fprintf(stderr, "Error: failed to load CRLs from \"%s\".\n",
                        value->strValue);
                xmlSecKeyInfoCtxDestroy(keyInfoCtx);
                return(-1);
            }
        } else {
            if(xmlSecAppCryptoSimpleKeysMngrCrlLoad(g_keysManager,
                        value->strValue, xmlSecKeyDataFormatPem) < 0) {
                fprintf(stderr, "Error: failed to load CRLs from \"%s\".\n",
                        value->strValue);
                xmlSecKeyInfoCtxDestroy(keyInfoCtx);
                return(-1);
            }
        }
    }
    for(value = crlDerParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n", crlDerParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
        if(verifyCrls != 0) {
            if(xmlSecAppCryptoSimpleKeysMngrCrlLoadAndVerify(g_keysManager,
                        value->strValue, xmlSecKeyDataFormatDer, keyInfoCtx) < 0) {
                fprintf(stderr, "Error: failed to load CRLs from \"%s\".\n",
                        value->strValue);
                xmlSecKeyInfoCtxDestroy(keyInfoCtx);
                return(-1);
            }
        } else {
            if(xmlSecAppCryptoSimpleKeysMngrCrlLoad(g_keysManager,
                        value->strValue, xmlSecKeyDataFormatDer) < 0) {
                fprintf(stderr, "Error: failed to load CRLs from \"%s\".\n",
                        value->strValue);
                xmlSecKeyInfoCtxDestroy(keyInfoCtx);
                return(-1);
            }
        }
    }
#endif /* XMLSEC_NO_X509 */

    /******************************************************************************
     *
     * XMLSEC KEY FILE
     *
      *****************************************************************************/
    for(value = keysFileParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n", keysFileParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrLoad(g_keysManager, value->strValue) < 0) {
            fprintf(stderr, "Error: failed to load xml keys file \"%s\".\n", value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }

    /******************************************************************************
     *
     * PRIVATE KEYS
     *
      *****************************************************************************/
    for(value = privkeyParam.value; value != NULL; value = value->next) {
        if(value->strListValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    privkeyParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrKeyAndCertsLoad(g_keysManager,
                    value->strListValue,
                    xmlSecAppCmdLineParamGetString(&pwdParam),
                    value->paramNameValue,
                    xmlSecKeyDataTypePrivate,
                    xmlSecKeyDataFormatPem,
                    keyInfoCtx,
                    verifyKeys) < 0) {
            fprintf(stderr, "Error: failed to load private key from \"%s\".\n",
                    value->strListValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }

    for(value = privkeyDerParam.value; value != NULL; value = value->next) {
        if(value->strListValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    privkeyDerParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrKeyAndCertsLoad(g_keysManager,
                    value->strListValue,
                    xmlSecAppCmdLineParamGetString(&pwdParam),
                    value->paramNameValue,
                    xmlSecKeyDataTypePrivate,
                    xmlSecKeyDataFormatDer,
                    keyInfoCtx,
                    verifyKeys) < 0) {
            fprintf(stderr, "Error: failed to load private key from \"%s\".\n",
                    value->strListValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }

    for(value = pkcs8PemParam.value; value != NULL; value = value->next) {
        if(value->strListValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    pkcs8PemParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrKeyAndCertsLoad(g_keysManager,
                    value->strListValue,
                    xmlSecAppCmdLineParamGetString(&pwdParam),
                    value->paramNameValue,
                    xmlSecKeyDataTypePrivate,
                    xmlSecKeyDataFormatPkcs8Pem,
                    keyInfoCtx,
                    verifyKeys) < 0) {
            fprintf(stderr, "Error: failed to load private key from \"%s\".\n",
                    value->strListValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }

    for(value = pkcs8DerParam.value; value != NULL; value = value->next) {
        if(value->strListValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    pkcs8DerParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrKeyAndCertsLoad(g_keysManager,
                    value->strListValue,
                    xmlSecAppCmdLineParamGetString(&pwdParam),
                    value->paramNameValue,
                    xmlSecKeyDataTypePrivate,
                    xmlSecKeyDataFormatPkcs8Der,
                    keyInfoCtx,
                    verifyKeys) < 0) {
            fprintf(stderr, "Error: failed to load private key from \"%s\".\n",
                    value->strListValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }

#ifndef XMLSEC_NO_X509
    /* read all pkcs12 files */
    if(xmlSecAppCmdLineParamIsSet(&pkcs12PersistParam)) {
        xmlSecImportSetPersistKey();
    }
    for(value = pkcs12Param.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n", pkcs12Param.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrPkcs12KeyLoad(g_keysManager,
                    value->strValue,
                    xmlSecAppCmdLineParamGetString(&pwdParam),
                    value->paramNameValue,
                    keyInfoCtx,
                    verifyKeys) < 0) {
            fprintf(stderr, "Error: failed to load pkcs12 key from \"%s\".\n",
                    value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }
#endif /* XMLSEC_NO_X509 */

    for(value = privkeyOpensslStoreParam.value; value != NULL; value = value->next) {
        if(value->strListValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    privkeyOpensslStoreParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrKeyAndCertsLoad(g_keysManager,
                    value->strListValue,
                    xmlSecAppCmdLineParamGetString(&pwdParam),
                    value->paramNameValue,
                    xmlSecKeyDataTypePrivate,
                    xmlSecKeyDataFormatStore,
                    keyInfoCtx,
                    verifyKeys) < 0) {
            fprintf(stderr, "Error: failed to load private key from \"%s\".\n",
                    value->strListValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }

    for(value = privkeyOpensslEngineParam.value; value != NULL; value = value->next) {
        /* we expect at least one parameter for the key's engine+id */
        if(value->strListValue == NULL || value->strListValue[0] == '\0') {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n", privkeyOpensslEngineParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }

        /* the params format is: <openssl-engine>;<openssl-key-id>[,<crtfile>[,<crtfile>[...]]] */
        if(xmlSecAppCryptoSimpleKeysMngrEngineKeyAndCertsLoad(g_keysManager,
                    value->strListValue,
                    value->strListValue + strlen(value->strListValue) + 1,
                    xmlSecAppCmdLineParamGetString(&pwdParam),
                    value->paramNameValue,
                    xmlSecKeyDataTypePrivate,
                    xmlSecKeyDataFormatEngine,
                    xmlSecKeyDataFormatPem,
                    keyInfoCtx,
                    verifyKeys) < 0) {
            fprintf(stderr, "Error: failed to load private key from \"%s\".\n",
                    value->strListValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }

    /******************************************************************************
     *
     * PUBLIC KEYS
     *
      *****************************************************************************/
    for(value = pubkeyParam.value; value != NULL; value = value->next) {
        if(value->strListValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    pubkeyParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrKeyAndCertsLoad(g_keysManager,
                    value->strListValue,
                    xmlSecAppCmdLineParamGetString(&pwdParam),
                    value->paramNameValue,
                    xmlSecKeyDataTypePrivate | xmlSecKeyDataTypePublic,
                    xmlSecKeyDataFormatPem,
                    keyInfoCtx,
                    verifyKeys) < 0) {
            fprintf(stderr, "Error: failed to load public key from \"%s\".\n",
                    value->strListValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }

    for(value = pubkeyDerParam.value; value != NULL; value = value->next) {
        if(value->strListValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    pubkeyDerParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrKeyAndCertsLoad(g_keysManager,
                    value->strListValue,
                    xmlSecAppCmdLineParamGetString(&pwdParam),
                    value->paramNameValue,
                    xmlSecKeyDataTypePrivate | xmlSecKeyDataTypePublic,
                    xmlSecKeyDataFormatDer,
                    keyInfoCtx,
                    verifyKeys) < 0) {
            fprintf(stderr, "Error: failed to load public key from \"%s\".\n",
                    value->strListValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }

    for(value = pubkeyOpensslStoreParam.value; value != NULL; value = value->next) {
        if(value->strListValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    pubkeyOpensslStoreParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrKeyAndCertsLoad(g_keysManager,
                    value->strListValue,
                    xmlSecAppCmdLineParamGetString(&pwdParam),
                    value->paramNameValue,
                    xmlSecKeyDataTypePrivate | xmlSecKeyDataTypePublic,
                    xmlSecKeyDataFormatStore,
                    keyInfoCtx,
                    verifyKeys) < 0) {
            fprintf(stderr, "Error: failed to load public key from \"%s\".\n",
                    value->strListValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }

    for(value = pubkeyOpensslEngineParam.value; value != NULL; value = value->next) {
        /* we expect at least one parameter for the key's engine+id */
        if(value->strListValue == NULL || value->strListValue[0] == '\0') {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n", pubkeyOpensslEngineParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }

        /* the params format is: <openssl-engine>;<openssl-key-id>[,<crtfile>[,<crtfile>[...]]] */
        if(xmlSecAppCryptoSimpleKeysMngrEngineKeyAndCertsLoad(g_keysManager,
                    value->strListValue,
                    value->strListValue + strlen(value->strListValue) + 1,
                    xmlSecAppCmdLineParamGetString(&pwdParam),
                    value->paramNameValue,
                    xmlSecKeyDataTypePublic | xmlSecKeyDataTypePrivate,
                    xmlSecKeyDataFormatEngine,
                    xmlSecKeyDataFormatPem,
                    keyInfoCtx,
                    verifyKeys) < 0) {
            fprintf(stderr, "Error: failed to load private key from \"%s\".\n",
                    value->strListValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }

#ifndef XMLSEC_NO_X509
    /* read all public keys in certs */
    for(value = pubkeyCertParam.value; value != NULL; value = value->next) {
        if(value->strListValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    pubkeyCertParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrKeyAndCertsLoad(g_keysManager,
                    value->strListValue,
                    xmlSecAppCmdLineParamGetString(&pwdParam),
                    value->paramNameValue,
                    xmlSecKeyDataTypePrivate | xmlSecKeyDataTypePublic,
                    xmlSecKeyDataFormatCertPem,
                    keyInfoCtx,
                    verifyKeys) < 0) {
            fprintf(stderr, "Error: failed to load public key from \"%s\".\n",
                    value->strListValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }

    for(value = pubkeyCertDerParam.value; value != NULL; value = value->next) {
        if(value->strListValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    pubkeyCertDerParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrKeyAndCertsLoad(g_keysManager,
                    value->strListValue,
                    xmlSecAppCmdLineParamGetString(&pwdParam),
                    value->paramNameValue,
                    xmlSecKeyDataTypePrivate | xmlSecKeyDataTypePublic,
                    xmlSecKeyDataFormatCertDer,
                    keyInfoCtx,
                    verifyKeys) < 0) {
            fprintf(stderr, "Error: failed to load public key from \"%s\".\n",
                    value->strListValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }
#endif /* XMLSEC_NO_X509 */

    /******************************************************************************
     *
     * SYMMETRICAL KEYS
     *
      *****************************************************************************/

#ifndef XMLSEC_NO_AES
    /* read all AES keys */
    for(value = aesKeyParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    aesKeyParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrBinaryKeyLoad(g_keysManager,
                    (const char*)xmlSecNameAESKeyValue, value->strValue, value->paramNameValue) < 0) {
            fprintf(stderr, "Error: failed to load aes key from \"%s\".\n",
                    value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }
#endif /* XMLSEC_NO_AES */

#ifndef XMLSEC_NO_CAMELLIA
    /* read all Camellia keys */
    for(value = camelliaKeyParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    camelliaKeyParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrBinaryKeyLoad(g_keysManager,
                    (const char*)xmlSecNameCamelliaKeyValue, value->strValue, value->paramNameValue) < 0) {
            fprintf(stderr, "Error: failed to load Camellia key from \"%s\".\n",
                    value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }
#endif /* XMLSEC_NO_CAMELLIA */

#ifndef XMLSEC_NO_CHACHA20
    /* read all ChaCha20 keys */
    for(value = chacha20KeyParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    chacha20KeyParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrBinaryKeyLoad(g_keysManager,
                    (const char*)xmlSecNameChaCha20KeyValue, value->strValue, value->paramNameValue) < 0) {
            fprintf(stderr, "Error: failed to load ChaCha20 key from \"%s\".\n",
                    value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }
#endif /* XMLSEC_NO_CHACHA20 */

#ifndef XMLSEC_NO_CONCATKDF
    /* read all ConcatKDF keys */
    for(value = concatKdfKeyParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    hmacKeyParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrBinaryKeyLoad(g_keysManager,
                    (const char*)xmlSecNameConcatKdf, value->strValue, value->paramNameValue) < 0) {
            fprintf(stderr, "Error: failed to load ConcatKDF key from \"%s\".\n",
                    value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }
#endif /* XMLSEC_NO_CONCATKDF */

#ifndef XMLSEC_NO_DES
    /* read all des keys */
    for(value = desKeyParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    desKeyParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrBinaryKeyLoad(g_keysManager,
                    (const char*)xmlSecNameDESKeyValue, value->strValue, value->paramNameValue) < 0) {
            fprintf(stderr, "Error: failed to load des key from \"%s\".\n",
                    value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }
#endif /* XMLSEC_NO_DES */

#ifndef XMLSEC_NO_HMAC
    /* read all hmac keys */
    for(value = hmacKeyParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    hmacKeyParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrBinaryKeyLoad(g_keysManager,
                   (const char*)xmlSecNameHMACKeyValue, value->strValue, value->paramNameValue) < 0) {
            fprintf(stderr, "Error: failed to load hmac key from \"%s\".\n",
                    value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }
#endif /* XMLSEC_NO_HMAC */

#ifndef XMLSEC_NO_PBKDF2
    /* read all Pbkdf2 keys */
    for(value = pbkdf2KeyParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    hmacKeyParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrBinaryKeyLoad(g_keysManager,
                    (const char*)xmlSecNamePbkdf2, value->strValue, value->paramNameValue) < 0) {
            fprintf(stderr, "Error: failed to load Pbkdf2 key from \"%s\".\n",
                    value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }
#endif /* XMLSEC_NO_PBKDF2 */

#ifndef XMLSEC_NO_HKDF
    /* read all HKDF keys (IKM) */
    for(value = hkdfKeyParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    hkdfKeyParam.fullName);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        } else if(xmlSecAppCryptoSimpleKeysMngrBinaryKeyLoad(g_keysManager,
                    (const char*)xmlSecNameHkdf, value->strValue, value->paramNameValue) < 0) {
            fprintf(stderr, "Error: failed to load HKDF key from \"%s\".\n",
                    value->strValue);
            xmlSecKeyInfoCtxDestroy(keyInfoCtx);
            return(-1);
        }
    }
#endif /* XMLSEC_NO_HKDF */


    /* DONE */
    xmlSecKeyInfoCtxDestroy(keyInfoCtx);
    return(0);
}

/**
 * Callbacks for supporting mapping URLs to files
 */
static int
xmlSecAppInputMatchCallback(char const* filename) {
    xmlSecAppCmdLineValuePtr value;

    if(filename == NULL) {
        return(0);
    }

    for(value = urlMapParam.value; value != NULL; value = value->next) {
        if((value->strValue == NULL) || (value->paramNameValue == NULL)) {
            continue;
        }
        if(strcmp(filename, value->paramNameValue) == 0) {
            if(g_printVerboseDebug != 0) {
                fprintf(stderr, "Debug: found mapped file \"%s\" for url \"%s\"\n", value->strValue, filename);
            }
            return(1);
        }
    }

    if(g_blockNetworkIO != 0) {
        static const xmlChar http[] = "http://";
        static const xmlChar https[] = "https://";
        static const xmlChar ftp[] = "ftp://";
        if(xmlStrncasecmp(BAD_CAST filename, http, xmlStrlen(http)) == 0) {
            if(g_printVerboseDebug != 0) {
                fprintf(stderr, "Debug: blocking access to \"%s\"\n", filename);
            }
            return(1);
        }
        if(xmlStrncasecmp(BAD_CAST filename, https, xmlStrlen(https)) == 0) {
            if(g_printVerboseDebug != 0) {
                fprintf(stderr, "Debug: blocking access to \"%s\"\n", filename);
            }
            return(1);
        }
        if(xmlStrncasecmp(BAD_CAST filename, ftp, xmlStrlen(ftp)) == 0) {
            if(g_printVerboseDebug != 0) {
                fprintf(stderr, "Debug: blocking access to \"%s\"\n", filename);
            }
            return(1);
        }
    }
    return(0);
}

static void*
xmlSecAppInputOpenCallback(char const* filename) {
    xmlSecAppCmdLineValuePtr value;

    if(filename == NULL) {
        return(NULL);
    }

    for(value = urlMapParam.value; value != NULL; value = value->next) {
        if((value->strValue == NULL) || (value->paramNameValue == NULL)) {
            continue;
        }
        if(strcmp(filename, value->paramNameValue) == 0) {
            FILE * f = NULL;
#if defined(_MSC_VER)
            fopen_s(&f, value->strValue, "rb");
#else /* defined(_MSC_VER) */
            f = fopen(value->strValue, "rb");
#endif /* defined(_MSC_VER) */
            if(f == NULL) {
                fprintf(stdout, "Error: can not open file \"%s\" for url \"%s\"\n", value->strValue, filename);
                return(NULL);
            }
            if(g_printVerboseDebug != 0) {
                fprintf(stdout, "Debug: opened file \"%s\" for url \"%s\"\n", value->strValue, filename);
            }
            return(f);
        }
    }
    return(NULL);
}

static int
xmlSecAppInputReadCallback(void* context, char* buffer, int len) {
    FILE* f = (FILE*)context;
    size_t res;

    if((f == NULL) || (len < 0)) {
        return(-1);
    }
    if(feof(f)) {
        return(0);
    }
    res = fread(buffer, 1, (size_t)len, f);
    if(ferror(f)) {
        return(-1);
    }
    return((int)res);
}

static int xmlSecAppInputCloseCallback(void* context) {
    FILE* f = (FILE*)context;
    int ret;

    if(f == NULL) {
        return(-1);
    }
    ret = fclose(f);
    if(ret != 0) {
        return(-1);
    }
    if(g_printVerboseDebug != 0) {
        fprintf(stdout, "Debug: closed file\n");
    }
    return(0);
}


static int intialized = 0;

#ifndef XMLSEC_NO_XSLT
static xsltSecurityPrefsPtr xsltSecPrefs = NULL;
#endif /* XMLSEC_NO_XSLT */

static int
xmlSecAppInit(void) {
    int ret;

    if(intialized != 0) {
        return(0);
    }
    intialized = 1;

    /* Init LibXML2 */
    xmlInitParser();
    LIBXML_TEST_VERSION

    /* Init LibXSLT */
#ifndef XMLSEC_NO_XSLT
    /* disable everything */
    xsltSecPrefs = xsltNewSecurityPrefs();
    xsltSetSecurityPrefs(xsltSecPrefs,  XSLT_SECPREF_READ_FILE,        xsltSecurityForbid);
    xsltSetSecurityPrefs(xsltSecPrefs,  XSLT_SECPREF_WRITE_FILE,       xsltSecurityForbid);
    xsltSetSecurityPrefs(xsltSecPrefs,  XSLT_SECPREF_CREATE_DIRECTORY, xsltSecurityForbid);
    xsltSetSecurityPrefs(xsltSecPrefs,  XSLT_SECPREF_READ_NETWORK,     xsltSecurityForbid);
    xsltSetSecurityPrefs(xsltSecPrefs,  XSLT_SECPREF_WRITE_NETWORK,    xsltSecurityForbid);
    xsltSetDefaultSecurityPrefs(xsltSecPrefs);
#endif /* XMLSEC_NO_XSLT */

    /* Init xmlsec */
    ret = xmlSecInit();
    if(ret < 0) {
        fprintf(stderr, "Error: xmlsec intialization failed.\n");
        return(-1);
    }
    if(xmlSecCheckVersion() != 1) {
        fprintf(stderr, "Error: loaded xmlsec library version is not compatible.\n");
        return(-1);
    }

    /* Setup IO callbacks */
    ret = xmlSecIORegisterCallbacks(xmlSecAppInputMatchCallback,
                                    xmlSecAppInputOpenCallback,
                                    xmlSecAppInputReadCallback,
                                    xmlSecAppInputCloseCallback);
    if(ret < 0) {
        fprintf(stderr, "Error: xmlsec IO callbacks intialization failed.\n");
        return(-1);
    }

#if !defined(XMLSEC_NO_CRYPTO_DYNAMIC_LOADING) && defined(XMLSEC_CRYPTO_DYNAMIC_LOADING)
    if(xmlSecCryptoDLLoadLibrary(BAD_CAST g_xmlSecCryptoLibrary) < 0) {
        fprintf(stderr, "Error: unable to load xmlsec-%s library. Make sure that you have\n"
                        "this it installed, check shared libraries path (LD_LIBRARY_PATH)\n"
                        "environment variable or use \"--crypto\" option to specify different\n"
                        "crypto engine.\n",
                        ((g_xmlSecCryptoLibrary != NULL) ? BAD_CAST g_xmlSecCryptoLibrary : xmlSecGetDefaultCrypto())
        );
        return(-1);
    }
#endif /* !defined(XMLSEC_NO_CRYPTO_DYNAMIC_LOADING) && defined(XMLSEC_CRYPTO_DYNAMIC_LOADING) */

    /* Init Crypto */
    if(xmlSecAppCryptoInit(xmlSecAppCmdLineParamGetString(&cryptoConfigParam)) < 0) {
        fprintf(stderr, "Error: xmlsec crypto intialization failed.\n");
        return(-1);
    }
    return(0);
}

static void
xmlSecAppShutdown(void) {
    if(intialized == 0) {
        return;
    }

    /* Shutdown Crypto */
    if(xmlSecAppCryptoShutdown() < 0) {
        fprintf(stderr, "Error: xmlsec crypto shutdown failed.\n");
    }

    /* Shutdown xmlsec */
    if(xmlSecShutdown() < 0) {
        fprintf(stderr, "Error: xmlsec shutdown failed.\n");
    }

    /* Shutdown LibXSLT / LibXML2*/
#ifndef XMLSEC_NO_XSLT
    xsltFreeSecurityPrefs(xsltSecPrefs);
    xsltCleanupGlobals();
#endif /* XMLSEC_NO_XSLT */
    xmlCleanupParser();
}

static xmlSecAppXmlDataPtr
xmlSecAppXmlDataCreate(const char* filename, const xmlChar* defStartNodeName, const xmlChar* defStartNodeNs) {
    xmlSecAppCmdLineValuePtr value;
    xmlSecAppXmlDataPtr data;
    xmlNodePtr cur = NULL;

    xmlChar* attrName;
    xmlChar* nodeName;
    xmlChar* nsHref;
    xmlChar* buf;

    if(filename == NULL) {
        fprintf(stderr, "Error: xml filename is null\n");
        return(NULL);
    }

    /* create object */
    data = (xmlSecAppXmlDataPtr) xmlMalloc(sizeof(xmlSecAppXmlData));
    if(data == NULL) {
        fprintf(stderr, "Error: failed to create xml data\n");
        return(NULL);
    }
    memset(data, 0, sizeof(xmlSecAppXmlData));

    /* parse doc */
    data->doc = xmlSecParseFile(filename);
    if(data->doc == NULL) {
        fprintf(stderr, "Error: failed to parse xml file \"%s\"\n",
                filename);
        xmlSecAppXmlDataDestroy(data);
        return(NULL);
    }

    /* load dtd and set default attrs and ids */
    if(xmlSecAppCmdLineParamGetString(&dtdFileParam) != NULL) {
        xmlValidCtxt ctx;

        data->dtd = xmlParseDTD(NULL, BAD_CAST xmlSecAppCmdLineParamGetString(&dtdFileParam));
        if(data->dtd == NULL) {
            fprintf(stderr, "Error: failed to parse dtd file \"%s\"\n",
                    xmlSecAppCmdLineParamGetString(&dtdFileParam));
            xmlSecAppXmlDataDestroy(data);
            return(NULL);
        }

        memset(&ctx, 0, sizeof(ctx));
        /* we don't care is doc actually valid or not */
        xmlValidateDtd(&ctx, data->doc, data->dtd);
    }

    /* set ID attributes from command line */
    for(value = idAttrParam.value; value != NULL; value = value->next) {
        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    idAttrParam.fullName);
            xmlSecAppXmlDataDestroy(data);
            return(NULL);
        }
        attrName = (value->paramNameValue != NULL) ? BAD_CAST value->paramNameValue : BAD_CAST "id";

        buf = xmlStrdup(BAD_CAST value->strValue);
        if(buf == NULL) {
            fprintf(stderr, "Error: failed to duplicate string \"%s\"\n", value->strValue);
            xmlSecAppXmlDataDestroy(data);
            return(NULL);
        }
        nodeName = (xmlChar*)strrchr((char*)buf, ':');
        if(nodeName != NULL) {
            (*(nodeName++)) = '\0';
            nsHref = buf;
        } else {
            nodeName = buf;
            nsHref = NULL;
        }

        /* process children first because it does not matter much but does simplify code */
        cur = xmlSecGetNextElementNode(data->doc->children);
        while(cur != NULL) {
            if(xmlSecAppAddIDAttr(cur, attrName, nodeName, nsHref) < 0) {
                fprintf(stderr, "Error: failed to add ID attribute \"%s\" for node \"%s\"\n", attrName, value->strValue);
                xmlFree(buf);
                xmlSecAppXmlDataDestroy(data);
                return(NULL);
            }
            cur = xmlSecGetNextElementNode(cur->next);
        }

        xmlFree(buf);
    }

    /* add ID attributes from command line */
    for(value = addIdAttrParam.value; value != NULL; value = value->next) {
        const xmlChar* idAttr[] = { NULL, NULL };

        if(value->strValue == NULL) {
            fprintf(stderr, "Error: invalid value for option \"%s\".\n",
                    idAttrParam.fullName);
            xmlSecAppXmlDataDestroy(data);
            return(NULL);
        }

        idAttr[0] = BAD_CAST value->strValue;
        xmlSecAddIDs(data->doc, NULL, idAttr);
    }

    /* now find the start node */
    if(xmlSecAppCmdLineParamGetString(&nodeIdParam) != NULL) {
        xmlAttrPtr attr;

        attr = xmlGetID(data->doc, BAD_CAST xmlSecAppCmdLineParamGetString(&nodeIdParam));
        if(attr == NULL) {
            fprintf(stderr, "Error: failed to find node with id=\"%s\"\n",
                    xmlSecAppCmdLineParamGetString(&nodeIdParam));
            xmlSecAppXmlDataDestroy(data);
            return(NULL);
        }
        cur = attr->parent;
    } else if(xmlSecAppCmdLineParamGetString(&nodeNameParam) != NULL) {
        xmlChar* name;
        xmlChar* ns;

        buf = xmlStrdup(BAD_CAST xmlSecAppCmdLineParamGetString(&nodeNameParam));
        if(buf == NULL) {
            fprintf(stderr, "Error: failed to duplicate node \"%s\"\n",
                    xmlSecAppCmdLineParamGetString(&nodeNameParam));
            xmlSecAppXmlDataDestroy(data);
            return(NULL);
        }
        name = (xmlChar*)strrchr((char*)buf, ':');
        if(name != NULL) {
            (*(name++)) = '\0';
            ns = buf;
        } else {
            name = buf;
            ns = NULL;
        }

        cur = xmlSecFindNode(xmlDocGetRootElement(data->doc), name, ns);
        if(cur == NULL) {
            fprintf(stderr, "Error: failed to find node with name=\"%s\"\n",
                    name);
            xmlFree(buf);
            xmlSecAppXmlDataDestroy(data);
            return(NULL);
        }
        xmlFree(buf);
    } else if(xmlSecAppCmdLineParamGetString(&nodeXPathParam) != NULL) {
        xmlXPathContextPtr ctx = NULL;
        xmlXPathObjectPtr obj = NULL;
        xmlNodePtr rootNode;
        xmlNsPtr ns;
        int ret;

        rootNode = xmlDocGetRootElement(data->doc);
        if(rootNode == NULL) {
            fprintf(stderr, "Error: failed to find root node\n");
            xmlSecAppXmlDataDestroy(data);
            return(NULL);
        }

        ctx = xmlXPathNewContext(data->doc);
        if(ctx == NULL) {
            fprintf(stderr, "Error: failed to create xpath context\n");
            xmlSecAppXmlDataDestroy(data);
            return(NULL);
        }

        /* register namespaces from the root node */
        for(ns = rootNode->nsDef; ns != NULL; ns = ns->next) {
            if(ns->prefix != NULL){
                ret = xmlXPathRegisterNs(ctx, ns->prefix, ns->href);
                if(ret != 0) {
                    fprintf(stderr, "Error: failed to register namespace \"%s\"\n", ns->prefix);
                    xmlXPathFreeContext(ctx);
                    xmlSecAppXmlDataDestroy(data);
                    return(NULL);
                }
            }
        }

        obj = xmlXPathEval(BAD_CAST xmlSecAppCmdLineParamGetString(&nodeXPathParam), ctx);
        if(obj == NULL) {
            fprintf(stderr, "Error: failed to evaluate xpath expression\n");
            xmlXPathFreeContext(ctx);
            xmlSecAppXmlDataDestroy(data);
            return(NULL);
        }

        if((obj->nodesetval == NULL) || (obj->nodesetval->nodeNr != 1)) {
            fprintf(stderr, "Error: xpath expression evaluation does not return a single node as expected\n");
            xmlXPathFreeObject(obj);
            xmlXPathFreeContext(ctx);
            xmlSecAppXmlDataDestroy(data);
            return(NULL);
        }

        cur = obj->nodesetval->nodeTab[0];
        xmlXPathFreeContext(ctx);
        xmlXPathFreeObject(obj);

    } else {
        cur = xmlDocGetRootElement(data->doc);
        if(cur == NULL) {
            fprintf(stderr, "Error: failed to get root element\n");
            xmlSecAppXmlDataDestroy(data);
            return(NULL);
        }
    }

    if(defStartNodeName != NULL) {
        data->startNode = xmlSecFindNode(cur, defStartNodeName, defStartNodeNs);
        if(data->startNode == NULL) {
            fprintf(stderr, "Error: failed to find default node with name=\"%s\"\n",
                    defStartNodeName);
            xmlSecAppXmlDataDestroy(data);
            return(NULL);
        }
    } else {
        data->startNode = cur;
    }

    return(data);
}

static void
xmlSecAppXmlDataDestroy(xmlSecAppXmlDataPtr data) {
    if(data == NULL) {
        fprintf(stderr, "Error: xml data is null\n");
        return;
    }
    if(data->dtd != NULL) {
        xmlFreeDtd(data->dtd);
    }
    if(data->doc != NULL) {
        xmlFreeDoc(data->doc);
    }
    memset(data, 0, sizeof(xmlSecAppXmlData));
    xmlFree(data);
}

static xmlSecAppCommand
xmlSecAppParseCommand(const char* cmd, xmlSecAppCmdLineParamTopic* cmdLineTopics, xmlSecAppCommand* subCommand) {
    if(subCommand != NULL) {
        (*subCommand) = xmlSecAppCommandUnknown;
    }

    if((cmd == NULL) || (cmdLineTopics == NULL)) {
        return(xmlSecAppCommandUnknown);
    } else

    if((strcmp(cmd, "help") == 0) || (strcmp(cmd, "--help") == 0)) {
        (*cmdLineTopics) = 0;
        return(xmlSecAppCommandHelp);
    } else

    if((strcmp(cmd, "help-all") == 0) || (strcmp(cmd, "--help-all") == 0)) {
        (*cmdLineTopics) = xmlSecAppCmdLineTopicAll;
        return(xmlSecAppCommandHelp);
    } else

    if((strncmp(cmd, "help-", 5) == 0) || (strncmp(cmd, "--help-", 7) == 0)) {
        cmd = (cmd[0] == '-') ? cmd + 7 : cmd + 5;
        if(subCommand) {
            (*subCommand) = xmlSecAppParseCommand(cmd, cmdLineTopics, NULL);
        } else {
            (*cmdLineTopics) = 0;
        }
        return(xmlSecAppCommandHelp);
    } else

    if((strcmp(cmd, "version") == 0) || (strcmp(cmd, "--version") == 0)) {
        (*cmdLineTopics) = xmlSecAppCmdLineTopicVersion;
        return(xmlSecAppCommandVersion);
    } else

    if((strcmp(cmd, "list-key-data") == 0) || (strcmp(cmd, "--list-key-data") == 0)) {
        (*cmdLineTopics) = xmlSecAppCmdLineTopicGeneral |
            xmlSecAppCmdLineTopicCryptoConfig;
        return(xmlSecAppCommandListKeyData);
    } else

    if((strcmp(cmd, "check-key-data") == 0) || (strcmp(cmd, "--check-key-data") == 0)) {
        (*cmdLineTopics) = xmlSecAppCmdLineTopicGeneral |
            xmlSecAppCmdLineTopicCryptoConfig;
        return(xmlSecAppCommandCheckKeyData);
    } else

    if((strcmp(cmd, "list-transforms") == 0) || (strcmp(cmd, "--list-transforms") == 0)) {
        (*cmdLineTopics) = xmlSecAppCmdLineTopicGeneral |
            xmlSecAppCmdLineTopicCryptoConfig;
        return(xmlSecAppCommandListTransforms);
    } else

    if((strcmp(cmd, "check-transforms") == 0) || (strcmp(cmd, "--check-transforms") == 0)) {
        (*cmdLineTopics) = xmlSecAppCmdLineTopicGeneral |
            xmlSecAppCmdLineTopicCryptoConfig;
        return(xmlSecAppCommandCheckTransforms);
    } else

    if((strcmp(cmd, "keys") == 0) || (strcmp(cmd, "--keys") == 0)) {
        (*cmdLineTopics) = xmlSecAppCmdLineTopicGeneral |
            xmlSecAppCmdLineTopicCryptoConfig |
            xmlSecAppCmdLineTopicKeysMngr |
            xmlSecAppCmdLineTopicX509Certs;
        return(xmlSecAppCommandKeys);
    } else

#ifndef XMLSEC_NO_XMLDSIG
    if((strcmp(cmd, "sign") == 0) || (strcmp(cmd, "--sign") == 0)) {
        (*cmdLineTopics) = xmlSecAppCmdLineTopicGeneral |
            xmlSecAppCmdLineTopicCryptoConfig |
            xmlSecAppCmdLineTopicDSigCommon |
            xmlSecAppCmdLineTopicDSigSign |
            xmlSecAppCmdLineTopicKeysMngr |
            xmlSecAppCmdLineTopicX509Certs;
        return(xmlSecAppCommandSign);
    } else

    if((strcmp(cmd, "verify") == 0) || (strcmp(cmd, "--verify") == 0)) {
        (*cmdLineTopics) = xmlSecAppCmdLineTopicGeneral |
            xmlSecAppCmdLineTopicCryptoConfig |
            xmlSecAppCmdLineTopicDSigCommon |
            xmlSecAppCmdLineTopicDSigVerify |
            xmlSecAppCmdLineTopicKeysMngr |
            xmlSecAppCmdLineTopicX509Certs;
        return(xmlSecAppCommandVerify);
    } else

#endif /* XMLSEC_NO_XMLDSIG */

#ifndef XMLSEC_NO_XMLENC
    if((strcmp(cmd, "encrypt") == 0) || (strcmp(cmd, "--encrypt") == 0)) {
        (*cmdLineTopics) = xmlSecAppCmdLineTopicGeneral |
            xmlSecAppCmdLineTopicCryptoConfig |
            xmlSecAppCmdLineTopicEncCommon |
            xmlSecAppCmdLineTopicEncEncrypt |
            xmlSecAppCmdLineTopicKeysMngr |
            xmlSecAppCmdLineTopicX509Certs;
        return(xmlSecAppCommandEncrypt);
    } else

    if((strcmp(cmd, "decrypt") == 0) || (strcmp(cmd, "--decrypt") == 0)) {
        (*cmdLineTopics) = xmlSecAppCmdLineTopicGeneral |
            xmlSecAppCmdLineTopicCryptoConfig |
            xmlSecAppCmdLineTopicEncCommon |
            xmlSecAppCmdLineTopicEncDecrypt |
            xmlSecAppCmdLineTopicKeysMngr |
            xmlSecAppCmdLineTopicX509Certs;
        return(xmlSecAppCommandDecrypt);
    } else

#endif /* XMLSEC_NO_XMLENC */

    if(1) {
        (*cmdLineTopics) = 0;
        return(xmlSecAppCommandUnknown);
    }
}

static void
xmlSecAppPrintHelp(xmlSecAppCommand command, xmlSecAppCmdLineParamTopic topics) {
    switch(command) {
    case xmlSecAppCommandUnknown:
    fprintf(stderr, "Unknown command\n");
    fprintf(stdout, "%s%s\n", helpCommands1, helpCommands2);
        break;
    case xmlSecAppCommandHelp:
        fprintf(stdout, "%s%s\n", helpCommands1, helpCommands2);
        break;
    case xmlSecAppCommandVersion:
        fprintf(stdout, "%s\n", helpVersion);
        break;
    case xmlSecAppCommandListKeyData:
        fprintf(stdout, "%s\n", helpListKeyData);
        break;
    case xmlSecAppCommandCheckKeyData:
        fprintf(stdout, "%s\n", helpCheckKeyData);
        break;
    case xmlSecAppCommandListTransforms:
        fprintf(stdout, "%s\n", helpListTransforms);
        break;
    case xmlSecAppCommandCheckTransforms:
        fprintf(stdout, "%s\n", helpCheckTransforms);
        break;
    case xmlSecAppCommandKeys:
        fprintf(stdout, "%s\n", helpKeys);
        break;
    case xmlSecAppCommandSign:
        fprintf(stdout, "%s\n", helpSign);
        break;
    case xmlSecAppCommandVerify:
        fprintf(stdout, "%s\n", helpVerify);
        break;
    case xmlSecAppCommandEncrypt:
        fprintf(stdout, "%s\n", helpEncrypt);
        break;
    case xmlSecAppCommandDecrypt:
        fprintf(stdout, "%s\n", helpDecrypt);
        break;
    }
    if(topics != 0) {
        fprintf(stdout, "Options:\n");
        xmlSecAppCmdLineParamsListPrint(parameters, topics, stdout);
        fprintf(stdout, "\n");
    }
    fprintf(stdout, "\n%s\n", bugs);
    fprintf(stdout, "%s\n", copyright);
}

static xmlSecTransformUriType
xmlSecAppGetUriType(const char* string) {
    xmlSecTransformUriType type = xmlSecTransformUriTypeNone;

    while((string != NULL) && (string[0] != '\0')) {
        if(strcmp(string, "empty") == 0) {
            type |= xmlSecTransformUriTypeEmpty;
        } else if(strcmp(string, "same-doc") == 0) {
            type |= xmlSecTransformUriTypeSameDocument;
        } else if(strcmp(string, "local") == 0) {
            type |= xmlSecTransformUriTypeLocal;
        } else if(strcmp(string, "remote") == 0) {
            type |= xmlSecTransformUriTypeRemote;
        } else {
            fprintf(stderr, "Error: invalid uri type: \"%s\"\n", string);
            return(xmlSecTransformUriTypeNone);
        }
        string += strlen(string) + 1;
    }
    return(type);
}

static xmlOutputBufferPtr
xmlSecAppOpenFile(const char* filename, const char* encoding) {
    xmlOutputBufferPtr outBuffer = NULL;
    xmlCharEncodingHandlerPtr encoder = NULL;

    if(encoding != NULL) {
        encoder = xmlFindCharEncodingHandler(encoding);
        if(encoder == NULL) {
            return(NULL);
        }
    }

    if((filename == NULL) || (strcmp(filename, XMLSEC_STDOUT_FILENAME) == 0)) {
        outBuffer = xmlOutputBufferCreateFile(stdout, encoder);
        if (outBuffer == NULL) {
            fprintf(stderr, "Error: failed to create output buffer for stdout\n");
            return(NULL);
        }
    } else {
        outBuffer = xmlOutputBufferCreateFilename(filename, encoder, 0);
        if (outBuffer == NULL) {
            fprintf(stderr, "Error: failed to open file \"%s\"\n", filename);
            return(NULL);
        }
    }
    return(outBuffer);
}

#define XMLSEC_OUTPUT_TMPL_PARAM  "{inputfile}"
static char*
xmlSecAppGetOutputFilename(const char* inputFileName, const char* outputFileNameTmpl) {
    char* inputFileNameCopy = NULL;
    char* inputBasename;
    char* outputFileNameTmplPointer;
    size_t resSize;
    char* res = NULL;
#if !defined(_MSC_VER)
    const char* tmp = NULL;
    char* tmp2;
#else /* !defined(_MSC_VER) */
    errno_t err;
#endif /* !defined(_MSC_VER) */

    if((inputFileName == NULL) || (outputFileNameTmpl == NULL)) {
        return(NULL);
    }

    /* is there something to replace? */
    outputFileNameTmplPointer = strstr(outputFileNameTmpl, XMLSEC_OUTPUT_TMPL_PARAM);
    if(outputFileNameTmplPointer == NULL) {
        return((char*)xmlStrdup(BAD_CAST outputFileNameTmpl));
    }

    /* get input file */
    inputFileNameCopy = (char*)xmlStrdup(BAD_CAST inputFileName);
    if (inputFileNameCopy == NULL) {
        fprintf(stderr, "Error: failed to duplicate input filename \"%s\"\n", inputFileName);
        goto done;
    }

#if !defined(_MSC_VER)
    inputBasename = basename(inputFileNameCopy);
    if(inputBasename == NULL) {
        fprintf(stderr, "Error: failed to get basename for input filename \"%s\"\n", inputFileName);
        goto done;
    }
    tmp2 = strrchr(inputBasename, '.');
    if(tmp2 != NULL) {
        // remove extension if any
        (*tmp2) = '\0';
    }
#else /* !defined(_MSC_VER) */
    inputBasename = inputFileNameCopy;
    err = _splitpath_s(inputFileName, NULL, 0, NULL, 0, inputBasename, strlen(inputBasename), NULL, 0);
    if(err != 0) {
        fprintf(stderr, "Error: failed to split the input filename \"%s\": %d\n", inputFileName, (int)err);
        goto done;
    }
#endif /* !defined(_MSC_VER) */

    /* create output filename */
    resSize = strlen(outputFileNameTmpl) + strlen(inputBasename) + 1;
    res = (char*)xmlMalloc(resSize);
    if(res == NULL) {
        fprintf(stderr, "Error: cannot allocate %d bytes for the output filename\n", (int)resSize);
        goto done;
    }
    memset(res, 0, resSize);

    /* prefix */
    if ((outputFileNameTmplPointer - outputFileNameTmpl) > 0) {
        memcpy(res, outputFileNameTmpl, (size_t)(outputFileNameTmplPointer - outputFileNameTmpl));
    }
    outputFileNameTmplPointer += strlen(XMLSEC_OUTPUT_TMPL_PARAM);

    /* input filename */
#if !defined(_MSC_VER)
    tmp = strcat(res, inputBasename);
    if(tmp == NULL) {
        fprintf(stderr, "Error: failed to append input basemame\n");
        goto done;
    }
#else /* !defined(_MSC_VER) */
    err = strcat_s(res, resSize, inputBasename);
    if(err != 0) {
        fprintf(stderr, "Error: failed to append input basemame: %d\n", (int)err);
        goto done;
    }
#endif /* !defined(_MSC_VER) */

    /* suffix */
#if !defined(_MSC_VER)
    tmp = strcat(res, outputFileNameTmplPointer);
    if(tmp == NULL) {
        fprintf(stderr, "Error: failed to append  output template suffix\n");
        goto done;
    }
#else /* !defined(_MSC_VER) */
    err = strcat_s(res, resSize, outputFileNameTmplPointer);
    if(err != 0) {
        fprintf(stderr, "Error: failed to append output template suffix: %d\n", (int)err);
        goto done;
    }
#endif /* !defined(_MSC_VER) */

    /* done */
done:
    if(inputFileNameCopy != NULL) {
        xmlFree(inputFileNameCopy);
    }
    return(res);
}

static int
xmlSecAppWriteResult(const char* inputFileName, const char* outputFileNameTmpl, xmlDocPtr doc, xmlSecBufferPtr buffer, const xmlChar* encoding) {
    char* outputFileName = NULL;
    xmlOutputBufferPtr outBuffer;
    int ret;

    /* get output filename by replacing '{inputfile}' with input file name */
    if((inputFileName != NULL) && (outputFileNameTmpl != NULL)) {
        outputFileName = xmlSecAppGetOutputFilename(inputFileName, outputFileNameTmpl);
        if(outputFileName == NULL) {
            fprintf(stderr, "Error: can't create output filename\n");
            return(-1);
        }
    }

    /* open file */
    outBuffer = xmlSecAppOpenFile(outputFileName != NULL ? outputFileName : outputFileNameTmpl, (const char *)encoding);
    if ((outputFileName != NULL) && (outputFileName != outputFileNameTmpl)) {
        xmlFree(outputFileName);
    }
    if(outBuffer == NULL) {
        return(-1);
    }

    /* dump output */
    if(doc != NULL) {
        ret = xmlSaveFileTo(outBuffer, doc, (const char*)doc->encoding);
        if (ret < 0) {
            fprintf(stderr, "Error: failed to write xml output\n");
            (void)xmlOutputBufferClose(outBuffer);
            return(-1);
        }
        /* xmlSaveFileTo closes the buffer */
    } else if((buffer != NULL) && (xmlSecBufferGetData(buffer) != NULL)) {
        ret = xmlOutputBufferWrite(outBuffer, (int)xmlSecBufferGetSize(buffer), (const char*)xmlSecBufferGetData(buffer));
        if (ret < 0) {
            fprintf(stderr, "Error: failed to write binary output\n");
            (void)xmlOutputBufferClose(outBuffer);
            return(-1);
        }
        (void)xmlOutputBufferClose(outBuffer);
    } else {
        fprintf(stderr, "Error: both result doc and result buffer are null\n");
        (void)xmlOutputBufferClose(outBuffer);
        return(-1);
    }

    /* done */
    return(0);
}

static int
xmlSecAppAddIDAttr(xmlNodePtr node, const xmlChar* attrName, const xmlChar* nodeName, const xmlChar* nsHref) {
    xmlAttrPtr attr, tmpAttr;
    xmlNodePtr cur;
    xmlChar* id;

    if((node == NULL) || (attrName == NULL) || (nodeName == NULL)) {
        return(-1);
    }

    /* process children first because it does not matter much but does simplify code */
    cur = xmlSecGetNextElementNode(node->children);
    while(cur != NULL) {
        if(xmlSecAppAddIDAttr(cur, attrName, nodeName, nsHref) < 0) {
            return(-1);
        }
        cur = xmlSecGetNextElementNode(cur->next);
    }

    /* node name must match */
    if(!xmlStrEqual(node->name, nodeName)) {
        return(0);
    }

    /* if nsHref is set then it also should match */
    if((nsHref != NULL) && (node->ns != NULL) && (!xmlStrEqual(nsHref, node->ns->href))) {
        return(0);
    }

    /* the attribute with name equal to attrName should exist */
    for(attr = node->properties; attr != NULL; attr = attr->next) {
        if(xmlStrEqual(attr->name, attrName)) {
            break;
        }
    }
    if(attr == NULL) {
        return(0);
    }

    /* and this attr should have a value */
    id = xmlNodeListGetString(node->doc, attr->children, 1);
    if(id == NULL) {
        return(0);
    }

    /* check that we don't have same ID already */
    tmpAttr = xmlGetID(node->doc, id);
    if(tmpAttr == NULL) {
        xmlAddID(NULL, node->doc, id, attr);
    } else if(tmpAttr != attr) {
        fprintf(stderr, "Error: duplicate ID attribute \"%s\"\n", id);
        xmlFree(id);
        return(-1);
    }
    xmlFree(id);
    return(0);
}