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{{r|Block cipher}}

The '''Blowfish''' [[block cipher]] | title=Description of a New Variable-Length Key, 64-Bit Block Cipher (Blowfish)

...al-purpose Encryption and Network Telecommunication Applications''' is a [[block cipher]]; it was [[Deutsche Telekom]]'s entry in the [[AES competition]]. Like all | title = The MAGENTA Block Cipher Algorithm

...e</td><td></td><td></td><td></td><td></td><td>candidate</td><td></td><td>[[Block cipher#Whitening and tweaking|tweakable]]</td> ...d></td><td></td><td></td><td>[[Hash_(cryptography)#Skein|Skein]]</td><td>[[Block cipher#Whitening and tweaking|tweakable]]</td>

{{r|Block cipher}}

...or '''Secure and Fast Encryption Routine''', is the name for a series of [[block cipher]]s designed by [[James Massey]] and co-workers for [[Cylink]] Corporation. ...K really stands for 'Stop Knudsen', a wise precaution in the design of any block cipher".

* When two output blocks from a [[block cipher]] are identical, the enemy gains some information. Assuming the key has not ...2⁶⁴ hash operations, to find a repeated ciphertext for a 64-bit block cipher or a repetition of a 64-bit challenge, he needs to collect and store about

...[[cipher]] except a [[one-time pad]]; variants of these work for either [[block cipher]]s or [[stream cipher]]s: ...attack]] &mdash; collect all possible plaintext/ciphertext pairs for a [[block cipher]], or the entire pseudorandom stream until it starts repeating for a [[stre

'''LOKI''' is the name of a series of [[block cipher]]s from an Australian group led by [[Jennifer Seberry]].

...a technique for [[cryptanalysis]]. The name comes from the attack on a [[block cipher]]; the attacker tries to build up a "code book", a table saying which ciphe For example, consider a block cipher with only an 8 bit block size. Assume the enemy is able to get or guess som

...ty expert, best known for designing the [[CAST (cipher)|CAST]] family of [[block cipher]]s.

ARIA is a [[block cipher]] developed in [[South Korea]], and an official standard (KS X 1213) there.

{{r|Block cipher}}

...yption Standard''', or '''AES''', is a US government specification for a [[block cipher]] to replace the earlier and weaker [[Data Encryption Standard]] (DES). AES ...Institute of Standards and Technology]] (NIST) ran a competition to find a block cipher to replace DES. Fifteen candidates were submitted; for descriptions of the

{{r|Block cipher}}

is a [[block cipher]] developed by a French team as a candidate for the [[AES competition]]; it

{{r|Block cipher}}

...ciphertext. A block cipher '''mode of operation''' specifies how multiple block cipher operations are to be combined to accomplish some larger task such as encryp ...Cipher Modes of Operation" <ref>{{cite paper | title = Recommendation for Block Cipher Modes of Operation | publisher = National Institute for Standards & Technol

...[[Symmetric key cryptography|secret key]] (symmetric) techniques such as [[block cipher]]s, [[stream cipher]]s and [[cryptographic hash]]es. Because asymmetric tec ...provide authentication and to securely transport the symmetric keys for a block cipher.

'''Skipjack''' was a [[block cipher]] devised by the [[NSA]], originally intended for use in the controversial