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Paper 2014/421

FNR : Arbitrary length small domain block cipher proposal

Sashank Dara, Scott Fluhrer

Abstract

We propose a practical flexible (or arbitrary) length small domain block cipher, FNR encryption scheme. FNR denotes Flexible Naor and Reingold. It can cipher small domain data formats like IPv4, Port numbers, MAC Addresses, Credit card numbers, any random short strings while preserving their input length. In addition to the classic Feistel networks, Naor and Reingold propose usage of Pair-wise independent permutation (PwIP) functions based on Galois Field GF(2n). Instead we propose usage of random NXN Invertible matrices in GF(2).

Note: Camera Print version of the paper sent to conference

Metadata
Available format(s)
PDF
Category
Secret-key cryptography
Publication info
Published elsewhere. Minor revision. Fourth International Conference on Security, Privacy, and Applied Cryptography Engineering (SPACE 2014) Defence Institute of Advanced Technology, Pune, India, 18th - 22nd October 2014
Keywords
block ciphers
Contact author(s)
sadara @ cisco com
History
2014-07-26: last of 5 revisions
2014-06-06: received
See all versions
Short URL
https://ia.cr/2014/421
License
Creative Commons Attribution
CC BY
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