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backport HmacKeyCopyHash() from bfd52decb6 and wc_HmacCopy() from 50b51adc93.

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This commit is contained in:
Daniel Pouzzner
2025-12-18 13:40:35 -06:00
parent 4bd0b3ef41
commit f4e22afa68
2 changed files with 84 additions and 0 deletions
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83
wolfcrypt/src/hmac.c
View File

@@ -291,6 +291,89 @@ int _InitHmac(Hmac* hmac, int type, void* heap)
return ret;
}
static int HmacKeyCopyHash(byte macType, wc_HmacHash* src, wc_HmacHash* dst)
{
int ret = 0;
switch (macType) {
#ifndef NO_MD5
case WC_MD5:
ret = wc_Md5Copy(&src->md5, &dst->md5);
break;
#endif /* !NO_MD5 */
#ifndef NO_SHA
case WC_SHA:
ret = wc_ShaCopy(&src->sha, &dst->sha);
break;
#endif /* !NO_SHA */
#ifdef WOLFSSL_SHA224
case WC_SHA224:
ret = wc_Sha224Copy(&src->sha224, &dst->sha224);
break;
#endif /* WOLFSSL_SHA224 */
#ifndef NO_SHA256
case WC_SHA256:
ret = wc_Sha256Copy(&src->sha256, &dst->sha256);
break;
#endif /* !NO_SHA256 */
#ifdef WOLFSSL_SHA384
case WC_SHA384:
ret = wc_Sha384Copy(&src->sha384, &dst->sha384);
break;
#endif /* WOLFSSL_SHA384 */
#ifdef WOLFSSL_SHA512
case WC_SHA512:
ret = wc_Sha512Copy(&src->sha512, &dst->sha512);
break;
#endif /* WOLFSSL_SHA512 */
#ifdef WOLFSSL_SHA3
#ifndef WOLFSSL_NOSHA3_224
case WC_SHA3_224:
ret = wc_Sha3_224_Copy(&src->sha3, &dst->sha3);
break;
#endif
#ifndef WOLFSSL_NOSHA3_256
case WC_SHA3_256:
ret = wc_Sha3_256_Copy(&src->sha3, &dst->sha3);
break;
#endif
#ifndef WOLFSSL_NOSHA3_384
case WC_SHA3_384:
ret = wc_Sha3_384_Copy(&src->sha3, &dst->sha3);
break;
#endif
#ifndef WOLFSSL_NOSHA3_512
case WC_SHA3_512:
ret = wc_Sha3_512_Copy(&src->sha3, &dst->sha3);
break;
#endif
#endif /* WOLFSSL_SHA3 */
default:
break;
}
return ret;
}
int wc_HmacCopy(Hmac* src, Hmac* dst) {
int ret;
if ((src == NULL) || (dst == NULL))
return BAD_FUNC_ARG;
XMEMCPY(dst, src, sizeof(*dst));
ret = HmacKeyCopyHash(src->macType, &src->hash, &dst->hash);
if (ret != 0)
XMEMSET(dst, 0, sizeof(*dst));
return ret;
}
int wc_HmacSetKey(Hmac* hmac, int type, const byte* key, word32 length)
{

1
wolfssl/wolfcrypt/hmac.h
View File

@@ -198,6 +198,7 @@ WOLFSSL_API int wc_HmacInit_Id(Hmac* hmac, byte* id, int len, void* heap,
WOLFSSL_API int wc_HmacInit_Label(Hmac* hmac, const char* label, void* heap,
int devId);
#endif
WOLFSSL_API int wc_HmacCopy(Hmac* src, Hmac* dst);
WOLFSSL_API void wc_HmacFree(Hmac*);
WOLFSSL_API int wolfSSL_GetHmacMaxSize(void);