cryptography, a message authentication code (MAC), sometimes known as an authentication tag, is a short piece of information used for authenticating and integrity-checking...

either keyed-hash message authentication code or hash-based message authentication code) is a specific type of message authentication code (MAC) involving...

In information security, message authentication or data origin authentication is a property that a message has not been modified while in transit (data...

field GF(2128) to compute the authentication tag; hence the name. Galois Message Authentication Code (GMAC) is an authentication-only variant of the GCM which...

Counter Mode Cipher Block Chaining Message Authentication Code Protocol (Counter Mode CBC-MAC Protocol) or CCM mode Protocol (CCMP) is an encryption protocol...

if it were originated from an address other than the one which was really used. Authentication Message authentication code Stream cipher attack v t e...

Output: ciphertext and authentication tag (message authentication code or MAC). Decryption Input: ciphertext, key, authentication tag, and optionally a...

Simple Authentication and Security Layer (SASL) is a framework for authentication and data security in Internet protocols. It decouples authentication mechanisms...

chaining message authentication code; counter with CBC-MAC) is a mode of operation for cryptographic block ciphers. It is an authenticated encryption...

that it is only suitable as a message authentication code: a keyed hash-function-like hash message authentication code (HMAC). That is, SHA is designed...

hash family, Poly1305 can be used as a one-time message authentication code to authenticate a single message using a secret key shared between sender and...

The Message Authenticator Algorithm (MAA) was one of the first cryptographic functions for computing a message authentication code (MAC). It was designed...

an authenticated encryption with associated data (AEAD) algorithm, that combines the ChaCha20 stream cipher with the Poly1305 message authentication code...

Message authentication codes (MACs) are often built from block ciphers. CBC-MAC, OMAC and PMAC are examples. Disk encryption Message authentication code...

applications, notably in digital signatures, message authentication codes (MACs), and other forms of authentication. They can also be used as ordinary hash...

ISO/IEC 9797-1 Information technology – Security techniques – Message Authentication Codes (MACs) – Part 1: Mechanisms using a block cipher is an international...

using the same secret key used by the sender. The Message Authentication Code protects both a message's data integrity as well as its authenticity. A computer...

chaining message authentication code (CBC-MAC) is a technique for constructing a message authentication code (MAC) from a block cipher. The message is encrypted...

(or has integrity) because each message transmitted includes a message integrity check using a message authentication code to prevent undetected loss or...

Challenge-Handshake Authentication Protocol (CHAP) secures against this sort of replay attack during the authentication phase by instead using a "challenge" message from...

is a simple key derivation function (KDF) based on the HMAC message authentication code. It was initially proposed by its authors as a building block...

July 2011. Digest access authentication was originally specified by RFC 2069 (An Extension to HTTP: Digest Access Authentication). RFC 2069 specifies roughly...

indicator Authentication and verification done (7th to 9th character) Card Data Input Method Cardholder Verification Method Cardholder Authentication Entity...

Multi-factor authentication (MFA; two-factor authentication, or 2FA, along with similar terms) is an electronic authentication method in which a user...

problematic when the hash is used as a message authentication code with construction Hash(secret ‖ message), and message and the length of secret is known...

combines the well-known counter mode of encryption with the Galois mode of authentication. The key feature is the use of a synthetic initialization vector (SIV)...

The tap code, sometimes called the knock code, is a way to encode text messages on a letter-by-letter basis in a very simple way. The message is transmitted...

keystream. Message authentication codes (MACs) are much like cryptographic hash functions, except that a secret key can be used to authenticate the hash...

Canetti, Ran (February 1997). "RFC 2104 – HMAC: Keyed-Hashing for Message Authentication". Internet Engineering Task Force. doi:10.17487/RFC2104. Archived...

message authentication code algorithm. It was created by Phillip Rogaway. PMAC is a method of taking a block cipher and creating an efficient message...