Paper 2010/477
On Compression of Data Encrypted with Block Ciphers
Demijan Klinc, Carmit Hazay, Ashish Jagmohan, Hugo Krawczyk, and Tal Rabin
Abstract
This paper investigates compression of data encrypted with block ciphers, such as the Advanced Encryption Standard (AES). It is shown that such data can be feasibly compressed without knowledge of the secret key. Block ciphers operating in various chaining modes are considered and it is shown how compression can be achieved without compromising security of the encryption scheme. Further, it is shown that there exists a fundamental limitation to the practical compressibility of block ciphers when no chaining is used between blocks. Some performance results for practical code constructions used to compress binary sources are presented.
Metadata
- Available format(s)
-
PDF
- Publication info
- Published elsewhere. DCC 2009
- Keywords
- Compressionencrypted datablock ciphersCBC modeECB modeSlepian-Wolf coding
- Contact author(s)
- carmit hazay @ gmail com
- History
- 2012-05-07: revised
- 2010-09-11: received
- See all versions
- Short URL
- https://ia.cr/2010/477
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2010/477,
author = {Demijan Klinc and Carmit Hazay and Ashish Jagmohan and Hugo Krawczyk and Tal Rabin},
title = {On Compression of Data Encrypted with Block Ciphers},
howpublished = {Cryptology {ePrint} Archive, Paper 2010/477},
year = {2010},
url = {https://eprint.iacr.org/2010/477}
}
