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Format-Preserving Encryption

Format-Preserving Encryption Library for Java

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2 Reviews

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Last Update: 2017-11-17

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This package implements the FF1, FF3, and FFX algorithms and the A2 and A10 parameter sets for format-preserving encryption.

The FF1 and FF3 methods for format-preserving encryption are implementations of NIST Special Publication 800-38G, Recommendation for Block Cipher Modes of Operation: Methods for Format-Preserving Encryption.

The FFX algorithm and A2 and A10 parameter sets are implementations of "The FFX Mode of Operation for Format-Preserving Encryption," by Mihir Bellare, Phillip Rogaway, and Terence Spies.

For more information see the README.txt and files in the source.


  • Implements the FF1 and FF3 methods of format-preserving encryption.
  • Complies with NIST SP 800-38G.
  • Produces conformance output that matches the sample data provided by NIST.
  • Implements the FFX algorithm and A2 and A10 parameter sets for format-preserving encryption.
  • Implements the FF1 and FF3 methods as standalone classes and FFX parameter sets.
  • Implements an experimental IFX algorithm for format-preserving encryption of strings of non-uniform symbols

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Cryptography, Libraries


Apache License V2.0

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  • m83 Posted 05/10/2017

    Very useful Java library if you're looking for FPE solutions.

  • james7wu Posted 10/16/2016


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