eden-emu/mbedtls
15
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Hardcode numwords in vli_sub

Browse source
This commit is contained in:
Manuel Pégourié-Gonnard 2019-11-04 14:41:45 +01:00
parent 2eca3d367b
commit 129b42ea2e
3 changed files with 20 additions and 17 deletions
tinycrypt
ecc_dsa.c

4
tinycrypt/ecc_dsa.c
View file

@ -103,7 +103,7 @@ static void bits2int(uECC_word_t *native, const uint8_t *bits,
/* Reduce mod curve_n */
if (uECC_vli_cmp_unsafe(curve->n, native) != 1) {
uECC_vli_sub(native, native, curve->n, num_n_words);
uECC_vli_sub(native, native, curve->n);
}
}
@ -294,7 +294,7 @@ int uECC_verify(const uint8_t *public_key, const uint8_t *message_hash,
/* v = x1 (mod n) */
if (uECC_vli_cmp_unsafe(curve->n, rx) != 1) {
uECC_vli_sub(rx, rx, curve->n, num_n_words);
uECC_vli_sub(rx, rx, curve->n);
}
/* Accept only if v == r. */