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adjust C# test and set rng with hpke case

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JacobBarthelmeh
2025-05-07 12:52:43 -06:00
parent cbc4cba263
commit 3f9fe491cc
2 changed files with 17 additions and 1 deletions
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15
wolfcrypt/src/hpke.c
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@@ -987,7 +987,7 @@ static int wc_HpkeDecap(Hpke* hpke, void* receiverKey, const byte* pubKey,
word16 pubKeySz, byte* sharedSecret) word16 pubKeySz, byte* sharedSecret)
{ {
int ret; int ret;
#ifdef ECC_TIMING_RESISTANT #if defined(ECC_TIMING_RESISTANT) || defined(WOLFSSL_CURVE25519_BLINDING)
WC_RNG* rng; WC_RNG* rng;
#endif #endif
word32 dh_len; word32 dh_len;
@@ -1052,9 +1052,22 @@ static int wc_HpkeDecap(Hpke* hpke, void* receiverKey, const byte* pubKey,
#endif #endif
#if defined(HAVE_CURVE25519) #if defined(HAVE_CURVE25519)
case DHKEM_X25519_HKDF_SHA256: case DHKEM_X25519_HKDF_SHA256:
#ifdef WOLFSSL_CURVE25519_BLINDING
rng = wc_rng_new(NULL, 0, hpke->heap);
if (rng == NULL) {
ret = RNG_FAILURE_E;
break;
}
wc_curve25519_set_rng((curve25519_key*)receiverKey, rng);
#endif
ret = wc_curve25519_shared_secret_ex( ret = wc_curve25519_shared_secret_ex(
(curve25519_key*)receiverKey, (curve25519_key*)ephemeralKey, (curve25519_key*)receiverKey, (curve25519_key*)ephemeralKey,
dh, &dh_len, EC25519_LITTLE_ENDIAN); dh, &dh_len, EC25519_LITTLE_ENDIAN);
#ifdef WOLFSSL_CURVE25519_BLINDING
wc_rng_free(rng);
#endif
break; break;
#endif #endif
case DHKEM_X448_HKDF_SHA512: case DHKEM_X448_HKDF_SHA512:

3
wrapper/CSharp/user_settings.h
View File

@@ -60,6 +60,9 @@
#define HAVE_ED25519 #define HAVE_ED25519
#define HAVE_CURVE25519 #define HAVE_CURVE25519
/* C# wrapper has ephemeral RNG when creating curve25519 key */
#define NO_CURVE25519_BLINDING
#define HAVE_AESGCM #define HAVE_AESGCM
#define WOLFSSL_AESGCM_STREAM #define WOLFSSL_AESGCM_STREAM
#define WOLFSSL_SHA384 #define WOLFSSL_SHA384