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RC4 - Just Solve the File Format Problem

RC4

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(Created page with "{{FormatInfo |formattype=electronic |subcat=Encryption |released=≥1987 }} RC4 (also called '''ARC4''' or '''ARCFour''') is a widely-used cryptographic stream cipher, des...")
 
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* [http://blog.cryptographyengineering.com/2013/03/attack-of-week-rc4-is-kind-of-broken-in.html Attack of the week: RC4 is kind of broken in TLS]
 
* [http://blog.cryptographyengineering.com/2013/03/attack-of-week-rc4-is-kind-of-broken-in.html Attack of the week: RC4 is kind of broken in TLS]
 
* [http://www.theregister.co.uk/2013/09/06/nsa_cryptobreaking_bullrun_analysis/ Have spooks smashed RC4?]
 
* [http://www.theregister.co.uk/2013/09/06/nsa_cryptobreaking_bullrun_analysis/ Have spooks smashed RC4?]
 +
* RFC 7465: Prohibiting RC4 Cipher Suites

Revision as of 17:11, 3 April 2015

File Format
Name RC4
Ontology
Released ≥1987
RC4 (also called ARC4 or ARCFour) is a widely-used cryptographic stream cipher, designed by Ron Rivest in 1987. It was originally a trade secret that was licensed for use in proprietary software. It was leaked or reverse-engineered in 1994.

RC4 is unusual in that it is purely a stream cipher, not a CBC (cipher block chaining) mode of a block cipher.

Though not completely broken (as far as we know), several cryptographic weaknesses have been found in it. Its use is discouraged.

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