Title:
MESSAGE AUTHENTICATOR GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/154642
Kind Code:
A1
Abstract:
A message authenticator generation device (10) uses a block cipher E having a block size n and generates a message authenticator. A hash function unit (21) uses the message M as an input and calculates a hash value w, using a hash function h having an output length longer than n bits. A post-processing unit (22) performs a calculation, using the block cipher E, on the hash value w calculated by the hash function unit (21) and calculates a message authenticator T no bigger than the block size n for the message M.
Inventors:
NAITO YUSUKE (JP)
Application Number:
PCT/JP2017/006504
Publication Date:
August 30, 2018
Filing Date:
February 22, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H04L9/32
Foreign References:
| US20020051537A1 | 2002-05-02 |
Other References:
YASUDA, K.: "A New Variant of PMAC: Beyond the Birthday Bound", LECTURE NOTES IN COMPUTER SCIENCE, vol. 6841, 2011, pages 596 - 609, XP055535771
LUYKX, A. ET AL.: "A MAC Mode for Lightweight Block Ciphers", CRYPTOLOGY EPRINT ARCHIVE , REPORT 2016/190, 23 February 2016 (2016-02-23), pages 1 - 20, XP055535773, Retrieved from the Internet [retrieved on 20170522]
BERNSTEIN, D. J.: "How to Stretch Random Functions: The Security of Protected Counter Sums", JOURNAL OF CRYPTOLOGY, vol. 12, 1999, pages 185 - 192, XP055535778
LUYKX, A. ET AL.: "A MAC Mode for Lightweight Block Ciphers", CRYPTOLOGY EPRINT ARCHIVE , REPORT 2016/190, 23 February 2016 (2016-02-23), pages 1 - 20, XP055535773, Retrieved from the Internet
BERNSTEIN, D. J.: "How to Stretch Random Functions: The Security of Protected Counter Sums", JOURNAL OF CRYPTOLOGY, vol. 12, 1999, pages 185 - 192, XP055535778
Attorney, Agent or Firm:
MIZOI INTERNATIONAL PATENT FIRM (JP)
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