Stream cipher
For the British code-word for World War II German stream cipher teleprinter secure communications devices, see
Fish (cryptography) .
The FISH (FIbonacci SHrinking) stream cipher is a fast software based stream cipher using Lagged Fibonacci generators , plus a concept from the shrinking generator cipher. It was published by Siemens in 1993. FISH is quite fast in software and has a huge key length . However, in the same paper where he proposed Pike , Ross Anderson showed that FISH can be broken with just a few thousand bits of known plaintext .
Blöcher, Uwe; Dichtl, Markus (1994), "Fish: A fast software stream cipher", Fast Software Encryption , Lecture Notes in Computer Science , vol. 809, Springer-Verlag, pp. 41–44, doi :10.1007/3-540-58108-1_4 , ISBN 978-3-540-58108-6 .
Anderson, Ross J. (1995), "On Fibonacci keystream generators", Fast Software Encryption , Lecture Notes in Computer Science, vol. 1008, Springer-Verlag, pp. 346–352, doi :10.1007/3-540-60590-8_26 , ISBN 978-3-540-60590-4 .
Widely used ciphers eSTREAM Portfolio
Other ciphers Generators Theory Attacks