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Pulling in wc_DhGeneratePublic API

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This commit is contained in:
Lealem Amedie
2025-04-29 17:03:41 -06:00
parent 6075b44e7e
commit d3cc329de1
2 changed files with 38 additions and 2 deletions
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36
wolfcrypt/src/dh.c
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@ -1348,6 +1348,38 @@ static int GeneratePublicDh(DhKey* key, byte* priv, word32 privSz,
return ret;
}
#if defined(WOLFSSL_DH_GEN_PUB)
/**
* Given a DhKey with set params and a priv key, generate the corresponding
* public key. If fips, does pub key validation.
* */
WOLFSSL_API int wc_DhGeneratePublic(DhKey* key, byte* priv, word32 privSz,
byte* pub, word32* pubSz)
{
int ret = 0;
if (key == NULL || priv == NULL || privSz == 0 ||
pub == NULL || pubSz == NULL) {
return BAD_FUNC_ARG;
}
SAVE_VECTOR_REGISTERS(return _svr_ret;);
ret = GeneratePublicDh(key, priv, privSz, pub, pubSz);
#if FIPS_VERSION_GE(5,0) || defined(WOLFSSL_VALIDATE_DH_KEYGEN)
if (ret == 0)
ret = _ffc_validate_public_key(key, pub, *pubSz, NULL, 0, 0);
if (ret == 0)
ret = _ffc_pairwise_consistency_test(key, pub, *pubSz, priv, privSz);
#endif /* FIPS V5 or later || WOLFSSL_VALIDATE_DH_KEYGEN */
RESTORE_VECTOR_REGISTERS();
return ret;
}
#endif /* WOLFSSL_DH_GEN_PUB */
static int wc_DhGenerateKeyPair_Sync(DhKey* key, WC_RNG* rng,
byte* priv, word32* privSz, byte* pub, word32* pubSz)
{
@ -2340,8 +2372,8 @@ int wc_DhExportKeyPair(DhKey* key, byte* priv, word32* pPrivSz,
#endif /* WOLFSSL_DH_EXTRA */
static int _DhSetKey(DhKey* key, const byte* p, word32 pSz, const byte* g,
word32 gSz, const byte* q, word32 qSz, int trusted,
WC_RNG* rng)
word32 gSz, const byte* q, word32 qSz, int trusted,
WC_RNG* rng)
{
int ret = 0;
mp_int* keyP = NULL;

4
wolfssl/wolfcrypt/dh.h
View File

@ -112,6 +112,10 @@ WOLFSSL_API const DhParams* wc_Dh_ffdhe8192_Get(void);
WOLFSSL_API int wc_InitDhKey(DhKey* key);
WOLFSSL_API int wc_InitDhKey_ex(DhKey* key, void* heap, int devId);
WOLFSSL_API int wc_FreeDhKey(DhKey* key);
#if defined(WOLFSSL_DH_GEN_PUB)
WOLFSSL_API int wc_DhGeneratePublic(DhKey* key, byte* priv, word32 privSz,
byte* pub, word32* pubSz);
#endif /* WOLFSSL_DH_GEN_PUB */
WOLFSSL_API int wc_DhGenerateKeyPair(DhKey* key, WC_RNG* rng, byte* priv,
word32* privSz, byte* pub, word32* pubSz);