The Twofish Encryption Algorithm: A 128-Bit BlockCipher
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More About This Title The Twofish Encryption Algorithm: A 128-Bit BlockCipher


BRUCE SCHNEIER is President of Counterpane Systems, a worldwide cryptography and information security consulting firm. A world-renowned expert on computer cryptography, Mr. Schneier is the inventor of Blowfish, a cryptography method built into more than 100 commercial products which continues unbroken. He is also the author of the bestselling Applied Cryptography (also available from Wiley). JOHN KELSEY, DAVID WAGNER, CHRIS HALL, and NIELS FERGUSON are well-known cryptographers and Counterpane consultants. DOUG WHITING is a security scientist with Hi/fn, a company specializing in compression technology.


Twofish Design Goals.

Twofish Building Blocks.


Performance of Twofish.

Twofish Design Philosophy.

The Design of Twofish.

Design of the Twofish Key Schedule.

Cryptanalysis of Twofish.

Using Twofish.

Historical Remarks.

Conclusions and Further Work.