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Code Issues Releases Wiki Activity

feat(crypto): Implement sha384_Raw().

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This commit is contained in:
Andrew Kozlik 2023-08-10 17:25:07 +02:00 committed by matejcik
parent 5898b16cd2
commit 91ef616b56
2 changed files with 35 additions and 1 deletions
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33
crypto/sha2.c
View File

@ -273,6 +273,18 @@ const sha2_word64 sha512_initial_hash_value[8] = {
0x5be0cd19137e2179ULL
};
/* Initial hash value H for SHA-384 */
const sha2_word64 sha384_initial_hash_value[8] = {
0xcbbb9d5dc1059ed8ULL,
0x629a292a367cd507ULL,
0x9159015a3070dd17ULL,
0x152fecd8f70e5939ULL,
0x67332667ffc00b31ULL,
0x8eb44a8768581511ULL,
0xdb0c2e0d64f98fa7ULL,
0x47b5481dbefa4fa4ULL
};
/*
* Constant used by SHA256/384/512_End() functions for converting the
* digest to a readable hexadecimal character string:
@ -984,7 +996,7 @@ char* sha256_Data(const sha2_byte* data, size_t len, char digest[SHA256_DIGEST_S
}
/*** SHA-512: *********************************************************/
/*** SHA-512 and SHA-384: *********************************************/
void sha512_Init(SHA512_CTX* context) {
if (context == (SHA512_CTX*)0) {
return;
@ -994,6 +1006,15 @@ void sha512_Init(SHA512_CTX* context) {
context->bitcount[0] = context->bitcount[1] = 0;
}
static void sha384_Init(SHA512_CTX* context) {
if (context == (SHA512_CTX*)0) {
return;
}
MEMCPY_BCOPY(context->state, sha384_initial_hash_value, SHA512_DIGEST_LENGTH);
memzero(context->buffer, SHA512_BLOCK_LENGTH);
context->bitcount[0] = context->bitcount[1] = 0;
}
#ifdef SHA2_UNROLL_TRANSFORM
/* Unrolled SHA-512 round macros: */
@ -1284,6 +1305,16 @@ void sha512_Raw(const sha2_byte* data, size_t len, uint8_t digest[SHA512_DIGEST_
sha512_Final(&context, digest);
}
void sha384_Raw(const sha2_byte* data, size_t len, uint8_t digest[SHA384_DIGEST_LENGTH]) {
uint8_t full_digest[SHA512_DIGEST_LENGTH] = {0};
SHA512_CTX context = {0};
sha384_Init(&context);
sha512_Update(&context, data, len);
sha512_Final(&context, full_digest);
memcpy(digest, full_digest, SHA384_DIGEST_LENGTH);
memzero(full_digest, sizeof(full_digest));
}
char* sha512_Data(const sha2_byte* data, size_t len, char digest[SHA512_DIGEST_STRING_LENGTH]) {
SHA512_CTX context = {0};

3
crypto/sha2.h
View File

@ -41,6 +41,7 @@
#define SHA256_BLOCK_LENGTH 64
#define SHA256_DIGEST_LENGTH 32
#define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
#define SHA384_DIGEST_LENGTH 48
#define SHA512_BLOCK_LENGTH 128
#define SHA512_DIGEST_LENGTH 64
#define SHA512_DIGEST_STRING_LENGTH (SHA512_DIGEST_LENGTH * 2 + 1)
@ -81,6 +82,8 @@ char* sha256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
void sha256_Raw(const uint8_t*, size_t, uint8_t[SHA256_DIGEST_LENGTH]);
char* sha256_Data(const uint8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
void sha384_Raw(const uint8_t*, size_t, uint8_t[SHA384_DIGEST_LENGTH]);
void sha512_Transform(const uint64_t* state_in, const uint64_t* data, uint64_t* state_out);
void sha512_Init(SHA512_CTX*);
void sha512_Update(SHA512_CTX*, const uint8_t*, size_t);