Cryptology ePrint Archive: Report 2005/063

On the Key Schedule of Blowfish

Dieter Schmidt

Abstract: In this article the author shows that for the block cipher Blowfish, the subkeys for the third and fourth round do not depend on the first 64 bits of the userkey

Category / Keywords: secret-key cryptography / Blowfish, block ciphers, key schedule

Date: received 26 Feb 2005, last revised 9 Aug 2006, withdrawn 24 Aug 2006

Contact author: dieterschmidt at usa com

Available formats: (-- withdrawn --)

Version: 20060824:124250 (All versions of this report)

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