eden-emu/mbedtls
20
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Revert a part of sensitive information duplication from tinycrypt

Browse source 
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
This commit is contained in:
Andrzej Kurek 2020-07-15 22:32:08 -04:00
parent afec8853c5
commit cf3e35cc58
No known key found for this signature in database
GPG key ID: 89A90840DC388527
3 changed files with 1 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

8
tinycrypt/ecc_dsa.c
View file

@ -204,10 +204,6 @@ int uECC_verify(const uint8_t *public_key, const uint8_t *message_hash,
bitcount_t i;
bitcount_t flow_control;
volatile uECC_word_t diff;
volatile const uint8_t *public_key_dup = public_key;
volatile const uint8_t *message_hash_dup = message_hash;
volatile unsigned hash_size_dup = hash_size;
volatile const uint8_t *signature_dup = signature;
uECC_word_t _public[NUM_ECC_WORDS * 2];
uECC_word_t r[NUM_ECC_WORDS], s[NUM_ECC_WORDS];
@ -309,10 +305,6 @@ int uECC_verify(const uint8_t *public_key, const uint8_t *message_hash,
* 1 (base value) + num_bits - 1 (from the loop) + 5 incrementations.
*/
if (diff == 0 && flow_control == (num_bits + 5)) {
if (public_key_dup != public_key || message_hash_dup != message_hash ||
hash_size_dup != hash_size || signature_dup != signature) {
return UECC_FAULT_DETECTED;
}
return UECC_SUCCESS;
}
else {