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What (who) is data authentication - definition
MESSAGE AUTHENTICATION CODE ALGORITHM
Data Authentication Code; FIPS PUB 113
Message authentication
IN INFORMATION SECURITY
Data authenticity; Authenticity (information security); Data origin authentication; Data-origin authentication; Data Origin Authentication; Message Authentication; Data Authentication; Data authentication; Data origin authenticity; Message authenticity; Data-origin authenticity; Cryptographitcally authenticated; Cryptographic authentication; Cryptographically authenticated
In information security, message authentication or data origin authentication is a property that a message has not been modified while in transit (data integrity) and that the receiving party can verify the source of the message. Message authentication does not necessarily include the property of non-repudiation.
Basic access authentication
METHOD FOR AN HTTP USER AGENT TO PROVIDE A USER NAME AND PASSWORD WHEN MAKING A REQUEST
Basic authentication; BasicAuthenticationScheme; Basic authentication scheme; HTTP basic authentication; Basic auth; Basicauth; HTTP Basic; Basic HTTP authentication
In the context of an HTTP transaction, basic access authentication is a method for an HTTP user agent (e.g.
Message authentication code
KEYED HASH FUNCTION USED TO PROTECT A MESSAGE'S INTEGRITY AND AUTHENTICITY
Message Authentication Code; Message Integrity Code; Partial MAC; Message footprint; Message authentication codes; Message-authentication code; Message integrity code; Message Integrity Check; Keyed hash function; Authentication tag
In cryptography, a message authentication code (MAC), sometimes known as a tag, is a short piece of information used for authenticating a message. In other words, to confirm that the message came from the stated sender (its authenticity) and has not been changed.
Wikipedia
Data Authentication Algorithm
The Data Authentication Algorithm (DAA) is a former U.S. government standard for producing cryptographic message authentication codes. DAA is defined in FIPS PUB 113, which was withdrawn on September 1, 2008. The algorithm is not considered secure by today's standards. According to the standard, a code produced by the DAA is called a Data Authentication Code (DAC). The algorithm chain encrypts the data, with the last cipher block truncated and used as the DAC.
The DAA is equivalent to ISO/IEC 9797-1 MAC algorithm 1, or CBC-MAC, with DES as the underlying cipher, truncated to between 24 and 56 bits (inclusive).
Examples of use of data authentication
1. The reason is that more than 140 million credit, debit and charge cards issued in the UK over the last few years use a technology known as SDA, which stands for ‘static data authentication‘. This is the cheapest option that could have been chosen by the big five banks, which made profits of 33billion last year, and other card issuers.
2. Banks abroad, however, prefer the safer option of the DDA system, which stands for ‘dynamic data authentication‘. Of the 6.2billion transactions on a credit, debit or charge card carried out every year in this country, one in five happens ‘offline‘, meaning the chip and pin terminal does not connect to the cardholder‘s bank.