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tools/security/crypto.go
62 строки
2 KB
Gani Georgiev
added hmac jsvm primitives and updated docs
09 сен 2023, 12:03
09 сен 2023, 12:03
56b2641
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package security import ( "crypto/hmac" "crypto/md5" "crypto/sha256" "crypto/sha512" "crypto/subtle" "encoding/base64" "fmt" "strings" ) // S256Challenge creates base64 encoded sha256 challenge string derived from code. // The padding of the result base64 string is stripped per [RFC 7636]. // // [RFC 7636]: https://datatracker.ietf.org/doc/html/rfc7636#section-4.2 func S256Challenge(code string) string { h := sha256.New() h.Write([]byte(code)) return strings.TrimRight(base64.URLEncoding.EncodeToString(h.Sum(nil)), "=") } // MD5 creates md5 hash from the provided plain text. func MD5(text string) string { h := md5.New() h.Write([]byte(text)) return fmt.Sprintf("%x", h.Sum(nil)) } // SHA256 creates sha256 hash as defined in FIPS 180-4 from the provided text. func SHA256(text string) string { h := sha256.New() h.Write([]byte(text)) return fmt.Sprintf("%x", h.Sum(nil)) } // SHA512 creates sha512 hash as defined in FIPS 180-4 from the provided text. func SHA512(text string) string { h := sha512.New() h.Write([]byte(text)) return fmt.Sprintf("%x", h.Sum(nil)) } // HS256 creates a HMAC hash with sha256 digest algorithm. func HS256(text string, secret string) string { h := hmac.New(sha256.New, []byte(secret)) h.Write([]byte(text)) return fmt.Sprintf("%x", h.Sum(nil)) } // HS512 creates a HMAC hash with sha512 digest algorithm. func HS512(text string, secret string) string { h := hmac.New(sha512.New, []byte(secret)) h.Write([]byte(text)) return fmt.Sprintf("%x", h.Sum(nil)) } // Equal compares two hash strings for equality without leaking timing information. func Equal(hash1 string, hash2 string) bool { return subtle.ConstantTimeCompare([]byte(hash1), []byte(hash2)) == 1 }