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message authentication code

   Also found in: Acronyms, Wikipedia 0.02 sec.
message authentication code [′mes·ij ȯ‚then·tə′kā·shən ‚kōd]
(computer science)
The encrypted personal identification code appended to the message transmitted to a computer; the message is accepted only if the decrypted code is recognized as valid by the computer. Abbreviated MAC.


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HMACSHA1 (Hash-based Message Authentication Code using SHA1) * M-ACTripleDES (Message Authentication Code using TripleDES) * MD5 (Message Digest algorithm) * SHA1 (Secure Hash Algorithm 1) * SHA256 (Secure Hash Algorithm 256) * SHA384 (Secure Hash Algorithm 384) * SHA512 (Secure Hash Algorithm 512) Digest.
Support is included for 3DES and digital signatures using Hashed Message Authentication Codes Message Digest (HMACMD5) and Secure Hashing Algorithm (HMA SHA-l).
The standard divides the key agreement process into the following major components: domain parameter generation, domain parameter validation, key pair generation, public key validation, shared secret value calculation, key derivation, and test message authentication code computation for discrete logarithm problem based key agreement schemes.
 
 
 
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