Main Page | See live article | Alphabetical index The Pike stream cipher was invented by Ross Anderson to be a "leaner and meaner" version of FISH after he broke FISH in 1994 (Of course it is a humorous allusion to the Pike (fish)). PIKE combined ideas from A5 with the Lagged Fibonacci generators used in FISH. It is about 10% faster than FISH, yet believed to be much stronger. It potentially has a huge key length, and in the nine years since publication there seem to have been no stronger attacks discovered. "Red Pike" is also the name of a classified United Kingdom government cipher. Little is publicly known about Red Pike, except that it is a block cipher with a 64 bit block size and 64 bit key length, and internal operations similar to RC5. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.