3 Blowfish is a block cipher that operates on 64bit (8 byte) quantities. It
4 uses variable size key, but 128bit (16 byte) key would normally be considered
5 good. It can be used in all the modes that DES can be used. This library
6 implements the ecb, cbc, cfb64, ofb64 modes.
8 Blowfish is quite a bit faster that DES, and much faster than IDEA or RC2.
9 It is one of the faster block ciphers.