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...ut for the next block. This effectively lets a block cipher be used as a [[stream cipher]]. A stream depending only on the key and the initialization vector o<sub>0 ...umber#pseudorandom number generator|pseudorandom number generator]] or a [[stream cipher]]; if the block cipher is secure and is keyed and re-keyed appropriately, t

Many [[cryptography|cryptographic]] techniques &mdash; [[block cipher]]s, [[stream cipher]]s, [[public key]] encryption, [[digital signature]]s, and [[hashed message

...ixed-size blocks and encrypts each block under control of the key, and a [[stream cipher]] which encrypts a stream of input data by combining it with a pseudo-rando [[Stream cipher]]s are not tied to blocks, but apply a continually generated key to an arbi

...inearity]] makes them useful in [[cryptography]], in the construction of [[stream cipher]]s or [[block cipher]]s. Bent functions are a specific case of [[plateaued

[[Bell Labs]] researcher [[Gilbert Vernam]] effectively invented the [[stream cipher]], obtaining U.S. Patent 1,310,719 on a device that took key and plaintext ...ndom sequence from the key. The former is insecure. The latter gives you a stream cipher, not a one-time pad.

...|first=Gregory J.|coauthors=Philip Hawkes|date=2003|chapter=Turing: A Fast Stream Cipher|url=http://download.springer.com/static/pdf/386/chp%253A10.1007%252F978-3-5

In [[cryptography]], a '''stream cipher''' is a symmetric [[cipher]] which encrypts data by combining the plaintext The hard part of stream cipher design is the pseudorandom generator. An enemy who knows or guesses some pl

...hat shared secret as a [[cryptographic key]] for a [[block cipher]] or a [[stream cipher]], or as the basis for a further key exchange.

...[[one-time pad]]; variants of these work for either [[block cipher]]s or [[stream cipher]]s: ...her]], or the entire pseudorandom stream until it starts repeating for a [[stream cipher]]

...[[one-time pad]]; variants of these work for either [[block cipher]]s or [[stream cipher]]s: ...her]], or the entire pseudorandom stream until it starts repeating for a [[stream cipher]]

...ation#Counter.2C_CTR|counter mode]] while the [[Open BSD]] device uses a [[stream cipher]]. The [[Linux]] device uses a second hash. ...rs; we describe some in the [[Stream_cipher#Shift_register_stream_ciphers| stream cipher article]].

...xt]], giving a block of [[ciphertext]] for each. The other main type are [[stream cipher]]s, which generate a continuous stream of keying material to be mixed with ...another cryptographic function such as a [[random number generator]], a [[stream cipher]], or a [[cryptographic hash]]. These are primarily a matter of choosing th

...em. Designing a good cryptographic primitive &mdash; a [[block cipher]], [[stream cipher]] or [[cryptographic hash]] &mdash; is indeed a tricky business, but for mo A [[stream cipher]] encrypts a stream of input data by combining it with a [[random number |

...rithms]] with names of the form RC''n'' including [[RC4]], a widely used [[stream cipher]].

First, CSS was designed to be weak; it used a [[stream cipher]] for the bulk data encryption, and some additional things for [[key manage

...ights management or DRM scheme used on commercial DVDs which uses a 40-bit stream cipher [[algorithm]] which was initially introduced around 1996. It was [[reverse