1 files changed, 9 insertions, 0 deletions
diff --git a/crypto/rsa/rsa_ameth.c b/crypto/rsa/rsa_ameth.c
index 6692a51ed8..cc686fcbda 100644
--- a/crypto/rsa/rsa_ameth.c
+++ b/crypto/rsa/rsa_ameth.c
@@ -118,6 +118,15 @@ static int rsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
 
 static int rsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
 {
+    /*
+     * Don't check the public/private key, this is mostly for smart
+     * cards.
+     */
+    if (((RSA_flags(a->pkey.rsa) & RSA_METHOD_FLAG_NO_CHECK))
+            || (RSA_flags(b->pkey.rsa) & RSA_METHOD_FLAG_NO_CHECK)) {
+        return 1;
+    }
+
     if (BN_cmp(b->pkey.rsa->n, a->pkey.rsa->n) != 0
         || BN_cmp(b->pkey.rsa->e, a->pkey.rsa->e) != 0)
         return 0;