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:
Mar. 17, 2026
Filed:
Nov. 02, 2023
Cryptography Research, Inc, San Jose, CA (US);
Michael Alexander Hamburg, 's-Hertogenbosch, NL;
Cryptography Research, Inc, San Jose, CA (US);
Abstract
Aspects and implementations include systems and techniques for efficient protection of secret data against replay attacks, including updating a unit of data of a plurality of units of data, updating an individual portion of a counter for the unit of data, the counter including an individual portion and a common portion, accessing a pointer value that distinguishes counters corresponding to a first epoch from counters corresponding to a second epoch, selecting, based on at least the pointer value and a value of the individual portion of the counter, an update value, and modifying the pointer value using the update value.