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:
Apr. 01, 2025

Filed:

Feb. 10, 2022
Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Panagiotis Theodorou Kampanakis, Apex, NC (US);

Dimitrios Sikeridis, San Diego, CA (US);

Assignee:

Cisco Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); G06F 15/16 (2006.01); H04L 15/16 (2006.01); H04L 29/06 (2006.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3247 (2013.01); H04L 9/3239 (2013.01);
Abstract

Methods and systems enable internal and external verification of computations performed by a code signing server according to hash-based signature techniques using unique state, and further for a code signing server to expose parts of a hash-based signature log without negating the security of the one-time signature key pairs generated by the code signing server. A signing module of a code signing server receives a signing request from a client computing system. The signing module configures the code signing server to generate a one-time signature key pair based on a Merkle tree state. The signing module configures the code signing server to issue a hash-based signature to the client computing system. The code signing server is configured to record the Merkle tree state and the issued HBS in an immutably ordered log at a logging server.


Find Patent Forward Citations

Kampanakis, Panagiotis. (2025). Enabling internal and external verification of hash-based signature computations by signing server (U.S. Patent No. 12267437). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12267437

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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