公开(公告)号：US20220284088A1

公开(公告)日：2022-09-08

申请号：US17636062

申请日：2019-10-24

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Hung Hua Peng ,  Stanley Hyojun Park ,  Rajesh Arvind Shah

IPC: G06F21/44 ,  G06F21/57

Abstract: Examples of computing devices for authenticating a write request to a controller of a computing device are described herein, in an example, a computing device may include a controller having a first authentication key and a firmware having a copy of the first authentication key. The copy of the first authentication key being editable. The controller may randomly generate a second authentication key. Using the first authentication key and the second authentication key, the controller may compute a first hash value. The firmware may compute a second hash value using the copy of the first authentication key and the second authentication key. When the controller receives a write request, the controller may compare the first hash value and the second hash value and allow the write request upon successful comparison.