Patent · US Active

Cryptographic key generation and storage

US11451387B2 · kind B2 · utility

1Cited by

18References

7Claims

0Family size

Assignee

BRITISH TELECOMMUNICATIONS public limited company · GB

Inventors

Joshua Daniel · London, GB
Ali Sajjad · London, GB

Key dates

Filing date	May 2, 2019
Grant date	Sep 20, 2022
Priority date	—
Expiry date	May 2, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG06F7/588
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A computer implemented method of generating cryptographic keys for a plurality of hardware security modules (HSMs), the method including generating a plurality of cryptographic keys for use by the HSMs in providing cryptography functions, wherein the cryptographic keys are generated based on numerical data generated by a hardware random number generator; and storing the generated cryptographic keys in a secure key store, such that a key in the key store utilized by an HSM is flagged as utilized to prevent other HSMs utilizing the same key, so as to provide a rate of generation and storage of the cryptographic keys unconstrained by the resources of any HSM.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.