hashfunctions - Hash functions are very valuable when it...

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Hash functions are very valuable when it comes to cryptology. Some standard applications that employ hash functions include authentication, message integrity (using an HMAC (Hashed MAC)), message fingerprinting, data corruption detection, and digital signature efficiency. A hash function is an efficiently evaluated function that takes an input string of arbitrary length and produces an output string of some fixed length, called a hash value or a message digest. This value is a way of checking to see if the message has been manipulated or corrupted in the transition. This tends to be kind of like a digital fingerprint. When it comes to hash functions, the message digest can be encrypted using conventional or public-key cryptology to produce a digital signature, which is used to help the recipient feel confident that the message has not been forged. Hash functions are used in hash tables to quickly locate a data record given its search key. Usually, the domain of a hash function (the set of possible keys) is larger than its range ( the
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  • Fall '19
  • Cryptography, hash function, Cryptographic hash function, Hash functions

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