Customer Service:
Mon - Fri: 8:30 am - 6 pm EST

 Most recent

ANSI X9.124-5-2021/ANSI X9.124-1-2020

Financial Services - Symmetric Key Cryptography for the Financial Services Industry Format Preserving Encryption - Part 1: Definition and Model/Part 5: Part 5 Format-preserving Feistel-based Mode FF3.1

X9.124 Symmetric Key Cryptography for the Financial Services Industry Format Preserving Encryption is a suite of standards consisting of five parts that defines format-preserving encryption (FPE) methods. Part 1 of this standard includes a set of definitions common to all FPE techniques, a security model for FPE block cipher techniques, and a description of the pseudocode language used in defining the mode specified in this document. Part 5 defines requirements for using the AES or Triple-DES block cipher to perform FPE using a format-preserving Feistel-based mode known as FF3.1. FF3.1 is part of the FFX family of Feistel-based format preserving encryption methods.


Content Provider
Accredited Standards Committee, Inc. - Financial Industry Standards [ASCX9]


ANSI Logo

As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.

CUSTOMER SERVICE
NEW YORK OFFICE
ANSI HEADQUARTERS