Paper 2026/702

A Constructive Treatment of Authentication

Christopher Battarbee, University of Edinburgh
Abstract

We review the traditional techniques of message authentication from the perspective of Constructive Cryptography, one of the major composable security frameworks. For each of the 'textbook' means of message authentication, known results are compiled, and various gaps are addressed. We also point out areas of remaining study, and obstacles to demonstrating composability in those cases. The results can be thought of as a toolkit showing how to realise composable authentication with various cryptographic primitives, with precise statements on the security guarantees and set-up requirements.

Metadata
Available format(s)
PDF
Category
Foundations
Publication info
Preprint.
Keywords
composable securityauthentication
Contact author(s)
kit battarbee @ ed ac uk
History
2026-04-11: approved
2026-04-09: received
See all versions
Short URL
https://ia.cr/2026/702
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2026/702,
      author = {Christopher Battarbee},
      title = {A Constructive Treatment of Authentication},
      howpublished = {Cryptology {ePrint} Archive, Paper 2026/702},
      year = {2026},
      url = {https://eprint.iacr.org/2026/702}
}
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