diff options
Diffstat (limited to 'rsa.c')
| -rw-r--r-- | rsa.c | 4 |
1 files changed, 3 insertions, 1 deletions
@@ -207,10 +207,11 @@ static hal_error_t modexp(hal_core_t *core, msg = reduced_msg; } + const size_t msg_len = (fp_unsigned_bin_size(unconst_fp_int(msg)) + 3) & ~3; const size_t exp_len = (fp_unsigned_bin_size(unconst_fp_int(exp)) + 3) & ~3; const size_t mod_len = (fp_unsigned_bin_size(unconst_fp_int(mod)) + 3) & ~3; - uint8_t msgbuf[mod_len]; + uint8_t msgbuf[msg_len]; uint8_t expbuf[exp_len]; uint8_t modbuf[mod_len]; uint8_t resbuf[mod_len]; @@ -231,6 +232,7 @@ static hal_error_t modexp(hal_core_t *core, memset(msgbuf, 0, sizeof(msgbuf)); memset(expbuf, 0, sizeof(expbuf)); memset(modbuf, 0, sizeof(modbuf)); + memset(resbuf, 0, sizeof(resbuf)); return err; } |