diff --git a/lib/des/rsa.c b/lib/des/rsa.c
index c6b108d4a..aa4bbd6bf 100644
--- a/lib/des/rsa.c
+++ b/lib/des/rsa.c
@@ -231,7 +231,6 @@ RSA_verify(int type, const unsigned char *from, unsigned int flen,
     return -1;
 }
 
-
 /*
  * A NULL RSA_METHOD that returns failure for all operations. This is
  * used as the default RSA method is we don't have any native
@@ -243,6 +242,23 @@ static RSAFUNC(null_rsa_public_decrypt, -1)
 static RSAFUNC(null_rsa_private_encrypt, -1)
 static RSAFUNC(null_rsa_private_decrypt, -1)
 
+/*
+ *
+ */
+
+int
+RSA_generate_key_ex(RSA *r, int bits, BIGNUM *e, BN_GENCB *cb)
+{
+    if (r->meth->rsa_keygen)
+	return (*r->meth->rsa_keygen)(r, bits, e, cb);
+    return 0;
+}
+
+
+/*
+ *
+ */
+
 static int 
 null_rsa_init(RSA *rsa)
 {
diff --git a/lib/des/rsa.h b/lib/des/rsa.h
index 56558128b..58f8b8759 100644
--- a/lib/des/rsa.h
+++ b/lib/des/rsa.h
@@ -59,6 +59,7 @@
 #define RSA_private_decrypt hc_RSA_private_decrypt
 #define RSA_sign hc_RSA_sign
 #define RSA_verify hc_RSA_verify
+#define RSA_generate_key_ex hc_RSA_generate_key_ex
 #define d2i_RSAPrivateKey hc_d2i_RSAPrivateKey
 #define i2d_RSAPublicKey hc_i2d_RSAPublicKey
 
@@ -163,6 +164,8 @@ int RSA_sign(int, const unsigned char *, unsigned int,
 int RSA_verify(int, const unsigned char *, unsigned int,
 	       unsigned char *, unsigned int, RSA *);
 
+int	RSA_generate_key_ex(RSA *, int, BIGNUM *, BN_GENCB *);
+
 RSA *	d2i_RSAPrivateKey(RSA *, const unsigned char **, size_t);
 int	i2d_RSAPublicKey(RSA *, unsigned char **);