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patch hmac final to use correct key

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This commit is contained in:
Conor Patrick 2019-07-26 23:49:55 -04:00
parent f5d50e001d
commit df2cff2350
2 changed files with 6 additions and 0 deletions
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1
fido2/crypto.h
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@ -38,6 +38,7 @@ void generate_private_key(uint8_t * data, int len, uint8_t * data2, int len2, ui
void crypto_ecc256_make_key_pair(uint8_t * pubkey, uint8_t * privkey);
void crypto_ecc256_shared_secret(const uint8_t * pubkey, const uint8_t * privkey, uint8_t * shared_secret);
#define CRYPTO_TRANSPORT_KEY2 ((uint8_t*)2)
#define CRYPTO_TRANSPORT_KEY ((uint8_t*)1)
#define CRYPTO_MASTER_KEY ((uint8_t*)0)

5
targets/stm32l432/src/crypto.c
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@ -157,6 +157,11 @@ void crypto_sha256_hmac_final(uint8_t * key, uint32_t klen, uint8_t * hmac)
key = master_secret;
klen = sizeof(master_secret)/2;
}
else if (key == CRYPTO_TRANSPORT_KEY2)
{
key = transport_secret;
klen = 32;
}
if(klen > 64)