Format-Preserving Encryption Code
Format-Preserving Encryption Library for Java
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Format-Preserving Encryption ============================ This package implements the two methods for format-preserving encryption specified in NIST Special Publication 800-38G, Recommendation for Block Cipher Modes of Operation: Methods for Format-Preserving Encryption. Distribution ------------ The source code for this package is available from SourceForge: https://sourceforge.net/p/format-preserving-encryption/ This package uses the AES cipher with keys of 128, 192 or 256 bits. To use key sizes larger than 128 bits with the Oracle JDK you must install the "Unlimited Strength Jurisdiction Policy Files." The policy files can be found at the same place as the JDK download: http://www.oracle.com/technetwork/java/javase/downloads/index.html. Export restrictions ------------------- This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software, to see if this is permitted. See <http://www.wassenaar.org/> for more information. The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with symmetric algorithms employing a key length in excess of 56-bits. The form and manner of this software distribution makes it eligible for export under the License Exception ENC Technology Software Unrestricted (TSU) exception (see the BIS Export Administration Regulations, Section 740.13) for both object code and source code. License ------- Copyright (c) 2016 Weydstone LLC dba Sutton Abinger See the NOTICE file distributed with this work for additional information regarding copyright ownership. Sutton Abinger licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. Acknowledgements ---------------- The author would like to thank Morris Dworkin and the Computer Security Division, Information Technology Laboratory at National Institute of Standards and Technology for their kind assistance in interpreting the specification. Additional Resources -------------------- NIST Special Publication 800-38G, "Recommendation for Block Cipher Modes of Operation: Methods for Format-Preserving Encryption" is available free of charge from: http://dx.doi.org/10.6028/NIST.SP.800-38G. Sample data for FF1 and FF3 are available at the examples page on NIST’s Computer Security Resource Center website: http://csrc.nist.gov/groups/ST/toolkit/examples.html.
