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

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

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

Domain-based Message Authentication, Reporting and Conformance (DMARC) is an email authentication protocol. It is designed to give email domain owners...

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

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...

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

Email authentication, or validation, is a collection of techniques aimed at providing verifiable information about the origin of email messages by validating...

Galois message authentication code (GMAC) is an authentication-only variant of the GCM which can form an incremental message authentication code. Both...

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

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

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

and it provides mutual authentication—both the user and the server verify each other's identity. Kerberos protocol messages are protected against eavesdropping...

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

(privacy-only) encryption scheme and a message authentication code (MAC) T. Kohno; J. Viega & D. Whiting. "The CWC Authenticated Encryption (Associated Data) Mode"...

that the scytale was used for message authentication rather than encryption. Only if the sender wrote the message around a scytale of the same diameter...

indicating a person or thing's identity, authentication is the process of verifying that identity. Authentication is relevant to multiple fields. In art...

may log in using any authentication mechanism supported by the server. It is mainly used by submission servers, where authentication is mandatory. SMTP...

message signing mechanism, nor can it provide protection for email messages along the entire route from sender to recipient. A Message authentication...

In cryptography, deniable authentication refers to message authentication between a set of participants where the participants themselves can be confident...

Extensible Authentication Protocol (EAP) is an authentication framework frequently used in network and internet connections. It is defined in RFC 3748...

The Data Authentication Algorithm (DAA) is a former U.S. government standard for producing cryptographic message authentication codes. DAA is defined in...

Multi-factor authentication (MFA; two-factor authentication, or 2FA) is an electronic authentication method in which a user is granted access to a website...

Remote Authentication Dial-In User Service (RADIUS) is a networking protocol that provides centralized authentication, authorization, and accounting (AAA)...

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

Mutual authentication or two-way authentication (not to be confused with two-factor authentication) refers to two parties authenticating each other at...

for any message Y ∉ {Xi} which they have not seen before. SipHash computes a 64-bit message authentication code from a variable-length message and 128-bit...

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

Real-time Transport Protocol (RTP) intended to provide encryption, message authentication and integrity, and replay attack protection to the RTP data in both...

for each message. The receiving station would have to know and use the exact settings employed by the transmitting station to decrypt a message. Although...