diff options
Diffstat (limited to 'firmware/bdb/rsa.c')
| -rw-r--r-- | firmware/bdb/rsa.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/firmware/bdb/rsa.c b/firmware/bdb/rsa.c index 88d32dc3..61757dac 100644 --- a/firmware/bdb/rsa.c +++ b/firmware/bdb/rsa.c @@ -33,7 +33,7 @@ static void subM(const struct public_key *key, uint32_t *a) /** * Return a[] >= mod */ -int vb2_mont_ge(const struct public_key *key, uint32_t *a) +static int mont_ge(const struct public_key *key, uint32_t *a) { uint32_t i; for (i = key->arrsize; i;) { @@ -132,7 +132,7 @@ static const uint8_t sha256_tail[] = { 0x05,0x00,0x04,0x20 }; -int vb2_check_padding(const uint8_t *sig, const struct public_key *key, +static int check_padding(const uint8_t *sig, const struct public_key *key, uint32_t pad_size) { /* Determine padding to use depending on the signature type */ @@ -192,7 +192,7 @@ static void modpowF4(const struct public_key *key, uint8_t *inout) montMul(key, aaa, aR, a); /* aaa = aR * a / R mod M */ /* Make sure aaa < mod; aaa is at most 1x mod too large. */ - if (vb2_mont_ge(key, aaa)) { + if (mont_ge(key, aaa)) { subM(key, aaa); } @@ -235,7 +235,7 @@ int bdb_rsa4096_verify(const uint8_t *key_data, * reduce the risk of timing based attacks. */ pad_size = key.arrsize * sizeof(uint32_t) - BDB_SHA256_DIGEST_SIZE; - rv = vb2_check_padding(sig_work, &key, pad_size); + rv = check_padding(sig_work, &key, pad_size); /* * Check digest. Even though there are probably no timing issues here, @@ -280,7 +280,7 @@ static void modpow3(const struct public_key *key, uint8_t *inout) montMul(key, aaa, aaR, a); /* aaa = aaR * a / R mod M */ /* Make sure aaa < mod; aaa is at most 1x mod too large. */ - if (vb2_mont_ge(key, aaa)) { + if (mont_ge(key, aaa)) { subM(key, aaa); } @@ -323,7 +323,7 @@ int bdb_rsa3072b_verify(const uint8_t *key_data, * reduce the risk of timing based attacks. */ pad_size = key.arrsize * sizeof(uint32_t) - BDB_SHA256_DIGEST_SIZE; - rv = vb2_check_padding(sig_work, &key, pad_size); + rv = check_padding(sig_work, &key, pad_size); /* * Check digest. Even though there are probably no timing issues here, |