Tweakable Enciphering Schemes From Stream Ciphers With IV

Palash Sarkar

Paper 2009/321

Tweakable Enciphering Schemes From Stream Ciphers With IV

Palash Sarkar

Abstract

We present the first construction of a tweakable enciphering scheme from a stream cipher supporting an initialization vector. This construction can take advantage of the recent advances in hardware efficient stream ciphers to yield disk encryption systems with a very small hardware footprint. Such systems will be attractive for resource constrained devices.

Note: Note to revision dated 19 Dec 2012: One stream cipher call was found to be unnecessary and the scheme has been modified to drop this call. Note to revision dated 6 Dec 2012: There was a bug in the earlier version. The two hash calls in the Feistel network used the same key which caused a problem. This problem has been fixed and a few other typos have been corrected.

Metadata

Available format(s): PDF
Category: Secret-key cryptography
Publication info: Published elsewhere. Unknown where it was published
Keywords: stream cipher with IV tweakable encryption disk encryption
Contact author(s): palash @ isical ac in
History: 2012-12-19: last of 2 revisions; 2009-07-01: received; See all versions
Short URL: https://ia.cr/2009/321
License: CC BY

BibTeX

@misc{cryptoeprint:2009/321,
      author = {Palash Sarkar},
      title = {Tweakable Enciphering Schemes From Stream Ciphers With {IV}},
      howpublished = {Cryptology {ePrint} Archive, Paper 2009/321},
      year = {2009},
      url = {https://eprint.iacr.org/2009/321}
}