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:
Aug. 12, 2025
Filed:
Mar. 31, 2021
Entrust Corporation, Shakopee, MN (US);
Jordi Íñigo Griera, Barcelona, ES;
Entrust Corporation, Shakopee, MN (US);
Abstract
A proxy hardware security module (HSM) is disclosed, useable with an existing HSM for expansion of key storage for the HSM. The proxy HSM receives a signing request that is targeted to the HSM, and retrieves a wrapped version of a signing key from a storage location separate from the HSM. The proxy HSM provides the wrapped signing key to the HSM, and provides the signing request to the HSM. Upon receipt of a response to the signing request indicating successful execution of a signing operation by the HSM, the proxy HSM transmits a key destroying request to the HSM, and a confirmation message to the device from which the signing request was received. Upon completion of the signing request, the HSM does not retain the signing key.