cryptography, a message authentication code (MAC), sometimes known as an authentication tag, is a short piece of information used for authenticating and integrity-checking...
16 KB (1,918 words) - 14:30, 11 July 2025
HMAC (redirect from Keyed-hash message authentication code)
either keyed-hash message authentication code or hash-based message authentication code) is a specific type of message authentication code (MAC) involving...
18 KB (2,327 words) - 01:15, 2 August 2025
In information security, message authentication or data origin authentication is a property that a message has not been modified while in transit (data...
6 KB (609 words) - 13:36, 10 July 2025
Galois/Counter Mode (redirect from Galois Message Authentication Code)
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...
23 KB (3,051 words) - 16:00, 1 July 2025
Cryptography (redirect from Coded message)
keystream. Message authentication codes (MACs) are much like cryptographic hash functions, except that a secret key can be used to authenticate the hash...
101 KB (11,139 words) - 05:17, 7 August 2025
CCMP (cryptography) (redirect from Counter Mode Cipher Block Chaining Message Authentication Code Protocol)
Cipher Block Chaining Message Authentication Code Protocol (Counter Mode CBC-MAC Protocol) or CCM mode Protocol (CCMP) is an authenticated encryption protocol...
5 KB (594 words) - 05:39, 11 December 2024
Cryptographic hash function (redirect from Cryptographic message digest)
applications, notably in digital signatures, message authentication codes (MACs), and other forms of authentication. They can also be used as ordinary hash...
49 KB (6,300 words) - 10:48, 24 July 2025
Block cipher mode of operation (redirect from Electronic code book)
Message authentication codes (MACs) are often built from block ciphers. CBC-MAC, OMAC and PMAC are examples. Disk encryption Message authentication code...
52 KB (5,830 words) - 02:15, 29 July 2025
Internet security (section Message Authentication Code)
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...
24 KB (2,660 words) - 15:42, 9 August 2025
ISO/IEC 9797-1 (category Message authentication codes)
ISO/IEC 9797-1 Information technology – Security techniques – Message Authentication Codes (MACs) – Part 1: Mechanisms using a block cipher is an international...
10 KB (1,232 words) - 00:23, 8 July 2024
Simple Authentication and Security Layer (SASL) is a framework for authentication and data security in Internet protocols. It decouples authentication mechanisms...
7 KB (687 words) - 23:11, 18 June 2025
July 2011. Digest access authentication was originally specified by RFC 2069 (An Extension to HTTP: Digest Access Authentication). RFC 2069 specifies roughly...
25 KB (2,879 words) - 04:06, 25 May 2025
(privacy-only) encryption scheme and a message authentication code (MAC) T. Kohno; J. Viega & D. Whiting. "The CWC Authenticated Encryption (Associated Data) Mode"...
19 KB (2,087 words) - 13:23, 24 July 2025
ChaCha20-Poly1305 (category Message authentication codes)
an authenticated encryption with associated data (AEAD) algorithm, that combines the ChaCha20 stream cipher with the Poly1305 message authentication code...
13 KB (1,509 words) - 15:01, 13 June 2025
Enigma machine (redirect from Enigma message)
fourth rotor. The Abwehr code had been broken on 8 December 1941 by Dilly Knox. Agents sent messages to the Abwehr in a simple code which was then sent on...
95 KB (11,562 words) - 08:56, 7 August 2025
Poly1305 (category Message authentication codes)
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...
17 KB (2,537 words) - 22:38, 24 July 2025
CBC-MAC (category Message authentication codes)
chaining message authentication code (CBC-MAC) is a technique for constructing a message authentication code (MAC) from a block cipher. The message is encrypted...
17 KB (2,861 words) - 19:30, 8 July 2025
PMAC (cryptography) (category Message authentication codes)
message authentication code algorithm. It was created by Phillip Rogaway. PMAC is a method of taking a block cipher and creating an efficient message...
1 KB (124 words) - 08:24, 27 April 2022
CMAC is the Cipher-based Message Authentication Code, a cryptographic algorithm. CMAC may also refer to: Cerebellar model articulation controller, type...
763 bytes (117 words) - 00:19, 17 October 2023
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...
13 KB (1,408 words) - 01:17, 9 June 2025
CCM mode (category Authenticated-encryption schemes)
chaining message authentication code; counter with CBC-MAC) is a mode of operation for cryptographic block ciphers. It is an authenticated encryption...
8 KB (934 words) - 04:53, 27 July 2025
ISO 8583 (section Message format)
indicator Authentication and verification done (7th to 9th character) Card Data Input Method Cardholder Verification Method Cardholder Authentication Entity...
36 KB (1,641 words) - 09:46, 4 August 2025
One-key MAC (category Message authentication codes)
One-key MAC (OMAC) is a family of message authentication codes constructed from a block cipher much like the CBC-MAC algorithm. It may be used to provide...
9 KB (919 words) - 07:00, 12 July 2025
SipHash (category Public-domain software with source code)
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...
14 KB (1,342 words) - 17:18, 17 February 2025
The Message Authenticator Algorithm (MAA) was one of the first cryptographic functions for computing a message authentication code (MAC). It was designed...
9 KB (954 words) - 09:25, 27 May 2025
Cryptanalysis (redirect from Message indicator)
Park 1944 Cryptographic Dictionary defined a depth as 1. A series of code messages reciphered with the same, or the same part of a, reciphering key especially...
44 KB (5,206 words) - 14:03, 20 July 2025
The Data Authentication Algorithm (DAA) is a former U.S. government standard for producing cryptographic message authentication codes. DAA is defined in...
1 KB (129 words) - 18:25, 29 April 2024
a key exchange algorithm, a bulk encryption algorithm, and a message authentication code (MAC) algorithm. The key exchange algorithm is used to exchange...
19 KB (2,358 words) - 16:00, 5 September 2024
VMAC (category Message authentication codes)
VMAC is a block cipher-based message authentication code (MAC) algorithm using a universal hash proposed by Ted Krovetz and Wei Dai in April 2007. The...
6 KB (742 words) - 12:42, 17 October 2024
Digital signature (redirect from Adaptive chosen-message attack)
by entering a personal identification number or PIN code (thus providing two-factor authentication). It can be arranged that the private key never leaves...
42 KB (4,980 words) - 12:28, 8 August 2025