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.

Date of Patent:
Nov. 15, 2022

Filed:

Dec. 14, 2016
Applicant:

Nec Laboratories Europe Gmbh, Heidelberg, DE;

Inventors:

Ghassan Karame, Heidelberg, DE;

Frederik Armknecht, Worms, DE;

Assignee:

NEC CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 9/08 (2006.01); G06F 12/06 (2006.01); G06F 16/182 (2019.01);
U.S. Cl.
CPC ...
H04L 9/3271 (2013.01); G06F 12/0646 (2013.01); H04L 9/0869 (2013.01); H04L 9/0894 (2013.01); G06F 2212/1044 (2013.01);
Abstract

A method for providing information to be stored includes computing a storable first secret for generating a random value based on a random function. The information to be stored is provided as a chunk which is divided into blocks each having an element. A storable second secret comprising a random element is computed. A tag is computed for each block such that the tag for the j-th block of the i-th chunk is computed using: an output of the random function, the j-th block, and a representation of the second secret. The information to be stored is provided together with an information tag comprising the computed tags of each block of each chunk.


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