-void rsa_public_encrypt __P((BIGNUM *, BIGNUM *, RSA *));
-int rsa_private_decrypt __P((BIGNUM *, BIGNUM *, RSA *));
-
-void generate_additional_parameters __P((RSA *));
+void rsa_public_encrypt(BIGNUM *, BIGNUM *, RSA *);
+int rsa_private_decrypt(BIGNUM *, BIGNUM *, RSA *);
+void rsa_generate_additional_parameters(RSA *);