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Format-Transforming Encryption

Project Description

Requires: GMP 5.1.x (, PyCrypto (

Format-Transforming Encryption (FTE) is a cryptographic primitive explored in the paper Protocol Misidentification Made Easy with Format-Transforming Encryption [1]. FTE allows a user to specify the format of their ouput ciphertexts using regular expressions. The libfte library implements the primitive presented in [1].

If you are interested in the proxy system that uses FTE to bypass DPI systems, please see fteproxy (

[1] Protocol Misidentification Made Easy with Format-Transforming Encryption, Kevin P. Dyer, Scott E. Coull, Thomas Ristenpart and Thomas Shrimpton,

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Source None Oct 1, 2015

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