Security Services Cryptography Authentication. For establishing mac process, the sender and receiver share a symmetric key k. Dh is not part of the authentication process.
Signer cannot claim he/she didn’t sign it 5. Message digests and digital signatures; Cryptography deals with the actual securing of digital data.
A mechanism might operate by itself, or with others, to provide a particular service.
Αὐθεντικός authentikos, real, genuine, from αὐθέντης authentes, author) is the act of proving an assertion, such as the identity of a computer system user. In addition to ensuring key security, this type of solution also allows auditing of key creation, use, and retirement. Dh is not part of the authentication process. Section 3 deals with security services.