BN_is_prime -> BN_is_prime_ex

diff --git a/src/bignum.h b/src/bignum.h
index 3730b47..c8ba566 100644 (file)
--- a/src/bignum.h
+++ b/src/bignum.h
@@ -605,7 +605,7 @@ public:
     */
     bool isPrime(const int checks=BN_prime_checks) const {
         CAutoBN_CTX pctx;
-        int ret = BN_is_prime(bn, checks, NULL, pctx, NULL);
+        int ret = BN_is_prime_ex(bn, checks, pctx, NULL);
         if(ret < 0){
             throw bignum_error("CBigNum::isPrime :BN_is_prime");
         }