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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: Clarifications to Security Analysis

Metadata
Available format(s)
PDF
Publication info
Preprint. MINOR revision.
Keywords
Authenticated EncryptionMinimum Tag ExpansionAuthenticationEncryptionSequence NumberInitialization 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
Creative Commons Attribution
CC BY
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