diff options
Diffstat (limited to 'lib/libssl/src')
| -rw-r--r-- | lib/libssl/src/crypto/bn/bn_prime.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/libssl/src/crypto/bn/bn_prime.c b/lib/libssl/src/crypto/bn/bn_prime.c index e072d9255c4..f422172f16b 100644 --- a/lib/libssl/src/crypto/bn/bn_prime.c +++ b/lib/libssl/src/crypto/bn/bn_prime.c @@ -234,7 +234,9 @@ int BN_is_prime_fasttest(const BIGNUM *a, int checks, /* first look for small factors */ if (!BN_is_odd(a)) - return 0; + /* a is even => a is prime if and only if a == 2 */ + return BN_is_word(a, 2); + if (do_trial_division) { for (i = 1; i < NUMPRIMES; i++) |