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Fix SHA512-224, SHA512-256 IV

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This commit is contained in:
Zhi Guan
2026-06-01 15:44:42 +08:00
parent e5386e3d30
commit e9471890b6
3 changed files with 96 additions and 31 deletions
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44
src/sha512.c
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@@ -201,3 +201,47 @@ void sha384_finish(SHA384_CTX *ctx, unsigned char dgst[SHA384_DIGEST_SIZE])
memcpy(dgst, buf, SHA384_DIGEST_SIZE);
memset(buf, 0, sizeof(buf));
}
void sha512_256_init(SHA512_CTX *ctx)
{
memset(ctx, 0, sizeof(*ctx));
ctx->state[0] = 0x22312194fc2bf72c;
ctx->state[1] = 0x9f555fa3c84c64c2;
ctx->state[2] = 0x2393b86b6f53b151;
ctx->state[3] = 0x963877195940eabd;
ctx->state[4] = 0x96283ee2a88effe3;
ctx->state[5] = 0xbe5e1e2553863992;
ctx->state[6] = 0x2b0199fc2c85b8aa;
ctx->state[7] = 0x0eb72ddc81c52ca2;
}
void sha512_256_finish(SHA512_CTX *ctx, unsigned char dgst[SHA256_DIGEST_SIZE])
{
unsigned char buf[SHA512_DIGEST_SIZE];
sha512_finish(ctx, buf);
memcpy(dgst, buf, SHA256_DIGEST_SIZE);
memset(buf, 0, sizeof(buf));
}
void sha512_224_init(SHA512_CTX *ctx)
{
memset(ctx, 0, sizeof(*ctx));
ctx->state[0] = 0x8c3d37c819544da2;
ctx->state[1] = 0x73e1996689dcd4d6;
ctx->state[2] = 0x1dfab7ae32ff9c82;
ctx->state[3] = 0x679dd514582f9fcf;
ctx->state[4] = 0x0f6d2b697bd44da8;
ctx->state[5] = 0x77e36f7304c48942;
ctx->state[6] = 0x3f9d85a86a1d36c8;
ctx->state[7] = 0x1112e6ad91d692a1;
}
void sha512_224_finish(SHA512_CTX *ctx, unsigned char dgst[SHA224_DIGEST_SIZE])
{
unsigned char buf[SHA512_DIGEST_SIZE];
sha512_finish(ctx, buf);
memcpy(dgst, buf, SHA224_DIGEST_SIZE);
memset(buf, 0, sizeof(buf));
}