diff options
Diffstat (limited to 'crypto/openssl/crypto/dh/dh_check.c')
| -rw-r--r-- | crypto/openssl/crypto/dh/dh_check.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/crypto/openssl/crypto/dh/dh_check.c b/crypto/openssl/crypto/dh/dh_check.c index a7e9920efb0f..058aec75bcd9 100644 --- a/crypto/openssl/crypto/dh/dh_check.c +++ b/crypto/openssl/crypto/dh/dh_check.c @@ -70,8 +70,6 @@ * should hold. */ -#ifndef OPENSSL_FIPS - int DH_check(const DH *dh, int *ret) { int ok=0; @@ -106,12 +104,12 @@ int DH_check(const DH *dh, int *ret) else *ret|=DH_UNABLE_TO_CHECK_GENERATOR; - if (!BN_is_prime(dh->p,BN_prime_checks,NULL,ctx,NULL)) + if (!BN_is_prime_ex(dh->p,BN_prime_checks,ctx,NULL)) *ret|=DH_CHECK_P_NOT_PRIME; else { if (!BN_rshift1(q,dh->p)) goto err; - if (!BN_is_prime(q,BN_prime_checks,NULL,ctx,NULL)) + if (!BN_is_prime_ex(q,BN_prime_checks,ctx,NULL)) *ret|=DH_CHECK_P_NOT_SAFE_PRIME; } ok=1; @@ -121,4 +119,24 @@ err: return(ok); } -#endif +int DH_check_pub_key(const DH *dh, const BIGNUM *pub_key, int *ret) + { + int ok=0; + BIGNUM *q=NULL; + + *ret=0; + q=BN_new(); + if (q == NULL) goto err; + BN_set_word(q,1); + if (BN_cmp(pub_key,q) <= 0) + *ret|=DH_CHECK_PUBKEY_TOO_SMALL; + BN_copy(q,dh->p); + BN_sub_word(q,1); + if (BN_cmp(pub_key,q) >= 0) + *ret|=DH_CHECK_PUBKEY_TOO_LARGE; + + ok = 1; +err: + if (q != NULL) BN_free(q); + return(ok); + } |