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do dsa_int_validate_pqg in dsa_set_pqg_dsaparam

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This commit is contained in:
Karel Miko 2017-09-14 17:25:28 +02:00
parent 45b6b947da
commit 9765befd6b
1 changed files with 11 additions and 1 deletions
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12
src/pk/dsa/dsa_set_pqg_dsaparam.c
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@ -24,7 +24,7 @@
int dsa_set_pqg_dsaparam(const unsigned char *dsaparam, unsigned long dsaparamlen, int dsa_set_pqg_dsaparam(const unsigned char *dsaparam, unsigned long dsaparamlen,
dsa_key *key) dsa_key *key)
{ {
int err; int err, stat;
LTC_ARGCHK(dsaparam != NULL); LTC_ARGCHK(dsaparam != NULL);
LTC_ARGCHK(key != NULL); LTC_ARGCHK(key != NULL);
@ -49,6 +49,16 @@ int dsa_set_pqg_dsaparam(const unsigned char *dsaparam, unsigned long dsaparamle
err = CRYPT_INVALID_PACKET; err = CRYPT_INVALID_PACKET;
goto LBL_ERR; goto LBL_ERR;
} }
/* quick p, q, g validation, without primality testing */
if ((err = dsa_int_validate_pqg(key, &stat)) != CRYPT_OK) {
goto LBL_ERR;
}
if (stat == 0) {
err = CRYPT_INVALID_PACKET;
goto LBL_ERR;
}
return CRYPT_OK; return CRYPT_OK;
LBL_ERR: LBL_ERR: