Twofish
Twofish is a block cipher by Counterpane Labs, published in 1998. It was one of the five Advanced Encryption Standard (AES) finalists, and was not selected as AES.
Twofish has a 128-bit block size, a key size ranging from 128 to 256 bits, and is optimized for 32-bit CPUs. Currently there is no successful cryptanalysis of Twofish.
Twofish is unpatented, and the source code is uncopyrighted and license-free; it is free for all uses.
Twofish in Brief
The Twofish Book
What’s New with Twofish and AES
Products that Use Twofish
Twofish in the Media
