> On Jun 9, 2018, at 11:25 PM, Sangsub <i_chacha@xxxxxxxxx> wrote: > > Actually, I'm begginer so I don't know well. > You said that the my input data is not a PKCS # 1 public key type. > > How do I distinguish between a PKCS # 1 type or an X.509 SPKI Public Key? You should not have to distinguish. The key type will be the same for a particular method of obtaining the key. In this case, the key will almost surely always be SPKI. You've not explained how you're obtaining the keys, why it is safe to assume they're RSA and not (say) ECDSA keys, or why you're looking to work with the public exponent and modulus, rather than use the existing OpenSSL signature verification functions. -- Viktor. -- openssl-users mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users
