The digital signature is verified along with the details of sender and recipient. The following code explains this −ĭef sign(message, priv_key, hashAlg='SHA-256'):Īuthentication is possible by verification method which is explained as below −
AuthorizationĪuthorization is the process to confirm that the sender is the only one who have transmitted the message. The function used to decrypt cipher text is as follows −įor public key cryptography or asymmetric key cryptography, it is important to maintain two important features namely Authentication and Authorization. This chapter is a continuation of the previous chapter where we followed step wise implementation of encryption using RSA algorithm and discusses in detail about it.
