RC4 - Revision history

Jsummers: Maybe not widely-used anymore

2017-05-06T20:00:05Z

Maybe not widely-used anymore

Jsummers: /* Software */

2016-01-29T20:13:15Z

‎Software

Jsummers: /* Software */

2015-12-26T18:19:54Z

‎Software

Jsummers at 17:11, 3 April 2015

2015-04-03T17:11:31Z

Jsummers: Created page with "{{FormatInfo |formattype=electronic |subcat=Encryption |released=≥1987 }} RC4 (also called '''ARC4''' or '''ARCFour''') is a widely-used cryptographic stream cipher, des..."

2014-06-04T22:44:39Z

Created page with "{{FormatInfo |formattype=electronic |subcat=Encryption |released=≥1987 }} RC4 (also called '''ARC4''' or '''ARCFour''') is a widely-used cryptographic stream cipher, des..."

New page

{{FormatInfo
|formattype=electronic
|subcat=Encryption
|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.

== Software ==
* [https://www.openssl.org/ OpenSSL]

== Links ==
* [[Wikipedia:RC4|Wikipedia article]]
* [http://blog.markloiseau.com/2012/07/rc4-tutorial/ RC4 Tutorial with Animation]
* [http://www.cs.rit.edu/~ark/winter2011/482/team/u4/report.pdf Cryptography - RC4 Algorithm]
* [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?]

@@ Line 11: / Line 11: @@
 == Software ==
-* [https://www.openssl.org/ OpenSSL]
+* [[OpenSSL]]
 * [[MCrypt]]

← Older revision		Revision as of 17:11, 3 April 2015
Line 19:		Line 19:
	* [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

@@ Line 4: / Line 4: @@
 |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]] (also called '''ARC4''' or '''ARCFour''') is a 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.