A CDE Definition
(Hash-based Message Authentication Code) A fixed-length value computed from a variable amount of text for authentication purposes. The hashing algorithm uses a secret key to create the hash code, which is sent along with the message. At the receiving end, the same secret key is used to generate the code, which is compared with the sender's hash code to verify the integrity of the message. See MAC, hash function and digital signature.
Before/After Your Search Term
Terms By Topic
Click any of the following categories for a list of fundamental terms.