Paper 2004/125
EME*: extending EME to handle arbitrary-length messages with associated data
Shai Halevi
Abstract
This work describes a mode of operation, EME*, that turns a regular block cipher into a length-preserving enciphering scheme for messages of (almost) arbitrary length. Specifically, the resulting scheme can handle any bit-length, not shorter than the block size of the underlying cipher, and it also handles associated data of arbitrary bit-length. Such a scheme can either be used directly in applications that need encryption but cannot afford length expansion, or serve as a convenient building block for higher-level modes. The mode EME* is a refinement of the EME mode of Halevi and Rogaway, and it inherits the efficiency and parallelism from the original EME.
Metadata
- Available format(s)
-
PDF
PS
- Category
- Secret-key cryptography
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- Block-cipher usagecryptographic standardsmodes of operationprovable securitysector-level encryptionsymmetric encryption
- Contact author(s)
- shaih @ watson ibm com
- History
- 2004-05-27: last of 2 revisions
- 2004-05-26: received
- See all versions
- Short URL
- https://ia.cr/2004/125
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2004/125,
author = {Shai Halevi},
title = {{EME}*: extending {EME} to handle arbitrary-length messages with associated data},
howpublished = {Cryptology {ePrint} Archive, Paper 2004/125},
year = {2004},
url = {https://eprint.iacr.org/2004/125}
}
