(or message authentication code), a short piece of information used to authenticate a message, and the algorithm to create and check such information, using a secret key.
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1answer
492 views
ANSI X9.9 Cryptography Standards
I'm trying to create a ISO8583 Rev93 message.
What is the standard way of generating MAC key in ANSI X9.9
DES-CBC encryption algorithm is used to encrypt the ...
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votes
3answers
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UMAC: to what extent is it in use today?
Inspired slightly by the Encrypt-then-MAC question. The most obvious message authentication code is probably HMAC or RFC 2104 which is basically a hash of the input, an xor with a key... you get the ...
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5answers
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Should we MAC-then-encrypt or encrypt-then-MAC?
Most of the time, when some data must be encrypted, it must also be protected with a MAC, because encryption protects only against passive attackers. There are some nifty encryption modes which ...
