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SECURE KEY UTILIZATION IN A DISTRIBUTED HARDWARE SECURITY MODULE

Application US20260081760A1 Kind: A1 Mar 19, 2026

Inventors

Bryan David KELLY, Mark Eugene RUSSINOVICH, Hervey Oliver WILSON

Abstract

Systems, methods, and computer readable storage media described herein for secure key utilization in a distributed hardware security module. In an aspect, a hardware security module is communicatively coupled to and physically separate from a host processor. The hardware security module comprises a security coprocessor. The security coprocessor receives, over a network and from a central security module, a first cryptographic key. The first cryptographic key is stored in a secure data store. A request to perform a cryptographic operation is received from the first host processor. The security coprocessor utilizes the first cryptographic key to perform the cryptographic operation, resulting in a cryptographic result. In one aspect, the cryptographic result to the first host processor. In another aspect, the cryptographic result is written to host memory. In another aspect, the hardware security module notifies the host processor that the cryptographic operation was completed.

CPC Classifications

H04L 9/0822 H04L 9/0825 G06F 21/53 H04L 9/3263

Filing Date

2024-09-19

Application No.

18890107