About

This website is an ECRYPT II initiative to provide the cryptographic community with tools for cryptography and cryptanalysis. This initiative originated from the Workshop on Tools for Cryptanalysis 2010 conference, held from June 22-23, 2010 at the Royal Holloway University of London (UK).

The website is maintained by Nicky Mouha. Please send an e-mail to for feedback and suggestions, or if you want to submit a new tool.

The banner on the top op page contains an photo of the bombe, one of the earliest tools for cryptanalysis. The original photo was made by Garretc. This photo is available under the Creative Commons by-ns-sa 2.0 license.

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