http://tcllib.sourceforge.net/doc/blowfish.html
Blowfish is a 64-bit block cipher designed by renowned cryptography expert Bruce Schneier. It is designed to operate efficiently on 32bit architectures and accepts variable key lengths. In practice initializing the cipher is a slow operation but once initialized the cipher operates very quickly.
The blowfish cryptographic algorithm has a homepage at [http://www.counterpane.com/blowfish.html].
Blowfish can be considered obsolete, it is succeeded by [Twofish].
A pure-Tcl implementation is included as part of [tcllib] and was derived from [Blowfish in Tcl]
Other Tcl packages with compiled blowfish implementations are:
* [Trfcrypt]
* [Critlib] [http://www.equi4.com/critlib/]
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See also [BOOK: Applied Cryptography], [Blowfish Tk client]
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[[[C<<categoryies>> Cryptography]]]