Difference between revisions of "Key (cryptography)"
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Latest revision as of 16:18, 6 April 2016
In cryptography, a key is a piece of information (a parameter) that determines the functional output of a cryptographic algorithm or cipher.
Contents
Encryption
In encryption, a key specifies the particular transformation of plaintext into ciphertext.
Decryption
In decryption. a key specifies the particular transformation of ciphertext into plaintext into ciphertext.
No key, no result
Without a key, the algorithm would produce no useful result.
Keys in other cryptographic algorithms
Keys are also used in other cryptographic algorithms, such as digital signature schemes and message authentication codes.
See also
External links
- Key (cryptography) @ Wikipedia
