Key (cryptography)
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In cryptography, a key is a piece of information (a parameter) that determines the functional output of a cryptographic algorithm or cipher. Without a key, the algorithm would produce no useful result. In encryption, a key specifies the particular transformation of plaintext into ciphertext, or vice versa during decryption. Keys are also used in other cryptographic algorithms, such as digital signature schemes and message authentication codes.
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See also
- Diceware describes a method of generating fairly easy-to-remember, yet fairly secure, passphrases, using only dice and a pencil.
- Coinware is a variant of diceware using coins instead of dice. It allows generation of multilingual passphrases, especially from the readily made wordlists of Unicode for CJK languages.
- Classification of cryptographic key types according to their usage
- A glossary of concepts related to keys
- Key-agreement protocol
- Key authentication
- Key derivation function
- Key distribution center
- Key escrow
- Key exchange
- Key management
- Public key fingerprint
- Key generation
- Key insulated cryptography
- Key schedule
- Key server
- Key signature (cryptography)
- Key signing party
- Key strengthening
- Machine-readable paper key
- Keyed hash algorithm
- Password psychology
- Random number generator
- Session key
- Self-certifying key
- Tripcode
- Weak key
- EKMS
Unless indicated otherwise, the text in this article is either based on Wikipedia article "Key (cryptography)" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on original research by Jahsonic and friends. See Art and Popular Culture's copyright notice.
