Patent · US Active

Cryptographic key generation using multiple random sources

US11411726B2 · kind B2 · utility

1Cited by

17References

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	Aug 9, 2022
Priority date	—
Expiry date	May 2, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH04L9/0897
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A computer implemented method of generating cryptographic keys for a hardware security module (HSM), the method including generating a plurality of cryptographic keys and storing the cryptographic keys for use by the HSM in providing cryptography functions, wherein the cryptographic keys are generated based on numerical data generated by a hardware random number generator, such that a rate of generation of the cryptographic keys unconstrained by the resources of the HSM, wherein the hardware random number generator operates based on a plurality of statistically random entropy data sources originating from natural phenomena so as to increase a degree of randomness of the numerical data.

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