ZETA: Towards Tagless Authenticated Encryption

Anindya Shankar Bhandari; Dipanwita Roy Chowdhury

Paper 2017/205

ZETA: Towards Tagless Authenticated Encryption

Anindya Shankar Bhandari and Dipanwita Roy Chowdhury

Abstract

Tag-based message authentication is a popular cryptographic technique to digitally sign messages. However, for short messages, it often incurs additional costs due to large tags. In this paper, we propose a new scheme that achieves tagless message authentication. The scheme leverages a trade-off between character support and complexity of forgery to provide information security and authenticity.

Note: Minor changes to terminology.

Metadata

Available format(s): PDF
Publication info: Preprint. MINOR revision.
Keywords: Authenticated Encryption Minimum Tag Expansion Authentication Encryption Sequence Number Initialization Vector
Contact author(s): anindyaorasb @ gmail com
History: 2017-10-29: last of 3 revisions; 2017-03-01: received; See all versions
Short URL: https://ia.cr/2017/205
License: CC BY

BibTeX

@misc{cryptoeprint:2017/205,
      author = {Anindya Shankar Bhandari and Dipanwita Roy Chowdhury},
      title = {{ZETA}: Towards Tagless Authenticated Encryption},
      howpublished = {Cryptology {ePrint} Archive, Paper 2017/205},
      year = {2017},
      url = {https://eprint.iacr.org/2017/205}
}