I. Define what a digital signature is and which type of encryption processes are used to create them (asymmetric).
II. Identify the process when an asymmetric cryptographic process uses the sender’s private key to encrypt a message, the sender’s public key must be used to decrypt the message.
III. Review the process of how and when the decryption happens successfully, it provides verification that the message was sent by the sender and cannot be refuted. This process is known as nonrepudiation and is the principle of cryptography that underpins the authentication mechanism collectively known as a digital signature.
IV. Emphasize the knowledge that a digital signature is an encrypted message and can be mathematically proven authentic.
V. Recommend digital signatures should be created using processes and products that are based on the Digital Signature Standard (DSS).