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:
Apr. 07, 2026
Filed:
Sep. 30, 2022
Dfinity Stiftung, Zürich, CH;
Jens Groth, Zürich, CH;
Victor Shoup, New York City, NY (US);
DFINITY STIFTUNG, Zürich, CH;
Abstract
Embodiments of the invention relate to a computer-implemented method for performing a digital signature according to a public key signature scheme. The method comprises a step of computing a presignature. The method comprises further steps of providing a master secret key pair, the master secret key pair comprising a first master secret key and a second master secret key, and providing a master public key pair, the master public key pair comprising a first master public key and a second master public key. The method comprises further steps of deriving a secret subkey from the master secret key pair and deriving a public subkey from the master public key pair. The method further comprises performing the digital signature by means of the secret subkey and the computed presignature.