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misc/plan.html
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Niels Möller
Note mips32 tests of nettle-3.4.
19 ноя 2017, 12:03
19 ноя 2017, 12:03
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<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <link rel="stylesheet" title="Default" type="text/css" href="todo.css" media="all"/> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title>TODO for coming releases</title> </head> <body> <h1> Nettle release plans </h1> <p> This is an attempt at defining a development target for the next release of Nettle, inspired by similar pages for recent GMP releases. [Last updated 2017-11-19]</p> <p class='should'> This really ought to be done before release </p> <p class='wish'> Try to get this done before release </p> <p class='done'> Done! </p> <p class='postponed'> Leave for some later release! </p> <h1> Plans for nettle-3.4 </h1> <h2> Bug fixes </h2> <p class='done'> Fix issues with sizes of objects like the nettle_hashes array and the ecc_curve structs accidentally leaking into the ABI. Fix by another level of indirection, with a function call to return the start address. </p> <h2> New features </h2> <p class='postponed'> Add larger "safe" curves, e.g., M-383, curve41417, curve448 and E-521. (curve448 in progress, on its own branch). </p> <p class='postponed'> Add functions for converting ECC points to and from ANSI x9.62. </p> <p class='postponed'> Support for the Skein hash function. </p> <p class='postponed'> Support for more GOST standard algorithms. </p> <p class='done'> Support for CFB mode (patch by Dmitry Eremin-Solenikov posted on the list). </p> <h2> Optimizations </h2> <p class='postponed'> Assembly optimizations for ARMv8 (64-bit). </p> <p class='postponed'> Further optimizations of curve25519 and EdDSA, in particular, <a href='http://www.hyperelliptic.org/EFD/g1p/auto-twisted-extended-1.html#addition-add-2008-hwcd-3'>more efficient point addition</a>, using extended XYZT coordinates. </p> <h2> Miscellaneous </h2> <p class='postponed'> Use more functions from GMP-6 and later, when available: mpn_sec_add_1, mpn_sec_tabselect, mpn_sec_invert, mpn_cnd_swap, ... </p> <p class='done'> Change base16 and base64 interfaces to use char for encoded data, and fix remaining pointer-signedness warnings. </p> <h2> Documentation </h2> <h2> Build system </h2> <p class='postponed'> Delete AX_CREATE_STDINT_H, use stdint.h unconditionally. </p> <h2> Testing </h2> <p> Since xenofarm isn't up and running, do some manual testing: </p> <ul> <li class='done'> x86_64-linux-gnu</li> <li class='done'> x86-linux-gnu</li> <li class='done'> x86_64-freebsd</li> <li class='done'> x86-w*ndows (using cross compiler and wine)</li> <li class='done'> x86_64-w*ndows (using cross compiler and wine)</li> <li class='done'> x86_64-w*ndows, native</li> <li class='should'> x86-darwin (needs help from Nettle users)</li> <li class='should'> x86_64-darwin (needs help from Nettle users)</li> <li class='wish'> armv5-linux-gnu (qemu)</li> <li class='done'> armv7el-linux-gnu (qemu)</li> <li class='done'> armv7hf-linux-gnu (qemu)</li> <li class='done'> armv8-linux-gnu (qemu)</li> <li class='done'> ppc32-linux-gnu (qemu)</li> <li class='done'> ppc64el-linux-gnu (qemu)</li> <li class='done'> ppc64eb-linux-gnu (qemu)</li> <li class='done'> mips32-linux-gnu</li> <li class='done'> mips64eb-linux-gnu (qemu)</li> <li class='done'> mips64el-linux-gnu (qemu)</li> <li class='done'> s390x-linux-gnu (qemu)</li> <li class='done'> m68k-linux-gnu (aranym)</li> <li class='done'> alpha-linux-gnu (qemu)</li> <li class='done'> hppa-linux-gnu (qemu)</li> <li class='done'> sparc32-linux-gnu</li> <li class='done'> sparc64-linux-gnu</li> <li class='wish'> armv7-android </li> </ul> <h1> Changes under consideration for later releases </h1> <p> These are some larger changes under consideration. </p> <h2> Interface changes </h2> <p class='should'> For Merkle-Damgaard hash functions, separate the state and the buffering. E.g., when using them for HMAC keyed "inner" and "outer" states, we now get three buffers but we only need one. </p> <p class='should'> Reorganize private key operations. Need to support RSA with and without blinding, and DSA according to spec and some deterministic variant (like putty or <a href='http://tools.ietf.org/html/rfc6979'>RFC6979</a>), and possibly also smartcard versions where the private key is not available to the library. And without an explosion of the number of functions. </p> </body> </html>