公开(公告)号：US20240354416A1

公开(公告)日：2024-10-24

申请号：US18305507

申请日：2023-04-24

Applicant: Dell Products L.P.

Inventor： Shekar Babu SURYANARAYANA ,  Manjunath GR ,  Venkata Rama krishna Rao ATTA

IPC: G06F21/57 ,  G06F3/06 ,  G06F9/4401

CPC classification number: G06F21/575 ,  G06F3/062 ,  G06F3/0634 ,  G06F3/0647 ,  G06F3/0673 ,  G06F9/4406 ,  G06F2221/034

Abstract: Disclosed subject matter implements a secure, cloud-based boot sequence for a recovery OS. In at least some embodiments, a three phase solution is employed. The first phase, which may occur during the DXE phase of a boot sequence, establishes trust by configuring at least a portion system memory as a trust zone RAM disk and attesting modules that interact with the RAM disk. The second phase downloads file from the cloud and performs a cumulative hash verification and handshaking with the EC. During the third phase, a memory identification table for the trust zone s migrated to OS runtime environment to enable secured, OS runtime access to the RAM disk contents.