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Add truncated SHA512 variants

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This commit is contained in:
Frank Denis 2020-08-20 12:56:42 +02:00
parent 6f9ea9eaef
commit 3bed749b1c
2 changed files with 38 additions and 2 deletions
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4
lib/std/crypto/hmac.zig
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@ -8,8 +8,8 @@ const crypto = std.crypto;
const debug = std.debug;
const mem = std.mem;
pub const HmacMd5 = Hmac(crypto.hash.legacy.Md5);
pub const HmacSha1 = Hmac(crypto.hash.legacy.Sha1);
pub const HmacMd5 = Hmac(crypto.hash.Md5);
pub const HmacSha1 = Hmac(crypto.hash.Sha1);
pub const sha2 = struct {
pub const HmacSha224 = Hmac(crypto.hash.sha2.Sha224);

36
lib/std/crypto/sha2.zig
View File

@ -77,7 +77,10 @@ const Sha256Params = Sha2Params32{
.out_len = 256,
};
/// SHA-224
pub const Sha224 = Sha2_32(Sha224Params);
/// SHA-256
pub const Sha256 = Sha2_32(Sha256Params);
fn Sha2_32(comptime params: Sha2Params32) type {
@ -421,9 +424,42 @@ const Sha512Params = Sha2Params64{
.out_len = 512,
};
const Sha512256Params = Sha2Params64{
.iv0 = 0x22312194FC2BF72C,
.iv1 = 0x9F555FA3C84C64C2,
.iv2 = 0x2393B86B6F53B151,
.iv3 = 0x963877195940EABD,
.iv4 = 0x96283EE2A88EFFE3,
.iv5 = 0xBE5E1E2553863992,
.iv6 = 0x2B0199FC2C85B8AA,
.iv7 = 0x0EB72DDC81C52CA2,
.out_len = 256,
};
const Sha512T256Params = Sha2Params64{
.iv0 = 0x6A09E667F3BCC908,
.iv1 = 0xBB67AE8584CAA73B,
.iv2 = 0x3C6EF372FE94F82B,
.iv3 = 0xA54FF53A5F1D36F1,
.iv4 = 0x510E527FADE682D1,
.iv5 = 0x9B05688C2B3E6C1F,
.iv6 = 0x1F83D9ABFB41BD6B,
.iv7 = 0x5BE0CD19137E2179,
.out_len = 256,
};
/// SHA-384
pub const Sha384 = Sha2_64(Sha384Params);
/// SHA-512
pub const Sha512 = Sha2_64(Sha512Params);
/// SHA-512/256
pub const Sha512256 = Sha2_64(Sha512256Params);
/// Truncated SHA-512
pub const Sha512T256 = Sha2_64(Sha512T256Params);
fn Sha2_64(comptime params: Sha2Params64) type {
return struct {
const Self = @This();