公开(公告)号：US20220004637A1

公开(公告)日：2022-01-06

申请号：US16920188

申请日：2020-07-02

Applicant: Dell Products L.P.

Inventor： William D. Leara ,  Richard M. Tonry

IPC: G06F21/57 ,  G06F21/62 ,  G06F21/71 ,  G06F8/71

Abstract: Discovery of unique identifiers in firmware can be prevented. During the boot process on a computing system, and after the firmware has generated firmware tables containing unique identifiers, an anonymizer module of the firmware can generate an anonymized version of the firmware tables and cause the anonymized version of the firmware tables, rather than the original, system-unique firmware tables, to be accessible after the operating system is loaded. In this way, once the operating system is loaded, when a module attempts to read the firmware tables, the read will be performed against the anonymized version of the firmware tables thereby preventing the module from obtaining any of the computing system's unique identifiers. A copy of the firmware tables may be maintained separately from the anonymized version of the firmware tables to enable authorized utilities to obtain the computing system's unique identifiers.

公开(公告)号：US20190238329A1

公开(公告)日：2019-08-01

申请号：US15648234

申请日：2017-07-12

Applicant: Dell Products L.P.

Inventor： William D. Leara ,  Richard Christopher Thompson ,  Nikhil Manohar Vichare

IPC: H04L9/08 ,  H04L29/06

CPC classification number: G06F7/58 ,  G06F7/582 ,  G06F7/588 ,  H03K3/84 ,  H04L9/00

Abstract: A method and system for generating a secure random seed uses chemical processes in a battery of an information handling system as an entropy source for randomness. The secure random seed may be used by a pseudo-random number generator to create a secure pseudorandom bit stream usable to generate secure encryption keys.