An American National Standards Institute (ANSI) standard checksum that is computed using Data Encryption Standard (DES).

Message authentication code is a way of confirming that a message has not been tampered with.

A bit string that is a function of both data (either plaintext or ciphertext) and a secret key, and that is attached to the data in order to allow data authentication. Note: The function used to generate the message authentication code must be a one-way function. [2382-pt.8] 2. Data associated with an authenticated message allowing a receiver to ve [..]

In Cryptographic Support, the first 4 bytes from the last 8-byte block of ciphertext produced when encrypting a message using cipher block chaining In computer security, a value that is a part of a me [..]

A digital code generated using a cryptographic algorithm which establishes that the contents of a message have not been changed and that the message was generated by an authorized entity.

A short piece of information used to support authentication of a message. A MAC algorithm accepts as input a secret key and an arbitrary-length message to be authenticated, and outputs a MAC (sometime [..]

A MAC is a cryptographic checksum that uses cryptography to assure the authenticity and integrity of data. MAC algorithms require two input parameters. Firstly, the data to be protected and, secondly, [..]

A Message Authentication Code (MAC) is an algorithm that mathematically combines a secret key with a hash to provide a “code” that can be appended with a given piece of data to ensure its integrity. M [..]

A function that takes a message and a secret key (and possibly a nonce) and produces an output that cannot, in practice, be forged without possessing the secret key.

A Message Authentication Code (MAC) is similar to a hash function in that it computes a random-like output digest from any size input message, but unlike a hash, which is a public function that anyone [..]

Similar to a Message Digest (Hash/Fingerprint), except the Shared Secret Key is used in the process of calculating the Hash. Since a shared secret key is used, an attacker cannot change the Message Di [..]

Data associated with an authenticated message that allows a receiver to verify the integrity of the message. (Glossary of INFOSEC and INFOSEC Related Terms -Idaho State University)

A MAC is a data integrity check mechanism based on shared secret encryption keys. The sender encrypts or authenticates the data, and the receiver uses the shared key to decrypt or check the authenticity of the received data.