The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2022
Filed:
Apr. 17, 2017
Applicant:
Nec Corporation, Tokyo, JP;
Inventor:
Kazuhiko Minematsu, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/32 (2006.01); G06F 21/64 (2013.01); H04L 9/06 (2006.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3236 (2013.01); G06F 21/64 (2013.01); H04L 9/0643 (2013.01); H04L 9/088 (2013.01); H04L 9/3247 (2013.01); H04L 2209/38 (2013.01);
Abstract
A hash function is computed for each item of a partial string obtained by dividing a message received according to a group testing matrix representing combinatorial group testing relating to the message, and an authentication tag for the partial string is generated using a value obtained by a combining operation of individual hash values by a combiner, wherein the combiner performs the combining operation of the individual hash values, by using a hash value of an item of an empty string as an identity element of the operation.