PSPReverse

PSPTool

Python2019–2022

PSPReverse / PSPTool

PSPTool

Display, extract, and manipulate PSP firmware inside UEFI images

Creative & Media Hardware & Embedded

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5Distinct people

5Mentions

0Explicit recommenders

722GitHub stars

REPOSITORY AT A GLANCE

What to know before exploring

What it is

Display, extract, and manipulate PSP firmware inside UEFI images

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 1:49:46 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year5 dated mentions

Observed mentions: 2019-06-05 08:16:52 UTC to 2022-02-07 11:53:14 UTC.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges

UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
2019	2019-01-01 00:00:00 UTC	2020-01-01 00:00:00 UTC	3	2	1
2020	2020-01-01 00:00:00 UTC	2021-01-01 00:00:00 UTC	1	0	1
2021	2021-01-01 00:00:00 UTC	2022-01-01 00:00:00 UTC	0	0	0
2022	2022-01-01 00:00:00 UTC	2023-01-01 00:00:00 UTC	1	0	1

What Hacker News says

5 sources

zibzab·Feb 7, 2022

Or, and here is a crazy idea, maybe they use a dedicated security chip to improve isolation and achieve better security? Don't know about apple, but the AMD security firmware has been reverse engineered and no backdoors have so far been found. https://github.com/PSPReverse/PSPTool

In Chip Red Pill: Arbitrary [Micro]Code Execution Inside Intel Atom CPUs

jlokier·Mar 9, 2020

> Should I buy AMD or do they have the same bad ideas? Buying AMD won't help with this sort of problem. AMD Platform Security Processor: https://en.wikipedia.org/wiki/AMD_Platform_Security_Processo... "The PSP is similar to the Intel Management Engine for Intel processors." It is an ARM core on the side, and AMD does not release source code for what's running on it. Reverse engineering efforts exist: https://github.com/PSPReverse/PSPTool

In Unfixable security flaw found in Intel chipset

peter_d_sherman·Dec 29, 2019

Excerpt: "The AMD Platform Security Processor (PSP) is a dedicated ARM CPU inside your AMD processor and runs undocumented, proprietary firmware provided by AMD. It is a processor inside your processor that you don't control. It is essential for system startup. In fact, in runs before the main processor is even started and is responsible for bootstrapping all other components. This talk presents our efforts investigating the PSP internals and functionality and how you can better understand it. Our talk is divided into three parts: The first part covers the firmware structure of the PSP and how we analyzed this proprietary firmware. We will demonstrate how to extract and replace individual firmware components of the PSP and how to observe the PSP during boot. The second part covers the functionality of the PSP and how it interacts with oth

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er components of the x86 CPU like the DRAM controller or System Management Unit (SMU). We will present our method to gain access to the, otherwise hidden, debug output. The talk concludes with a security analysis of the PSP firmware. We will demonstrate how to provide custom firmare to run on the PSP and introduce our toolchain that helps building custom applications for the PSP. This talk documents the PSP firmware's proprietary filesystem and provides insights into reverse-engineering such a deeply embedded system. It further sheds light on how we might regain trust in AMD CPUs despite the delicate nature of the PSP." Researchers: Robert Buhren, Alexander Eichner and Christian Werling Video is also available here: https://www.youtube.com/watch?v=bKH5nGLgi08 and here: https://www.youtube.com/watch?v=IejO5HxqMwo Also: PSPTool - Display, extract, and manipulate PSP firmware inside UEFI images https://github.com/PSPReverse/PSPTool Also, new (to me): (AMD) SMN "System Management Network" (description starts at 22:47)

In Uncover, Understand, Own – Regaining Control over Your AMD CPU [video]

zdw·Jun 5, 2019Submission

PSPTool Is a Swiss Army Knife for the Firmware of the AMD Secure Processor

172 points · Open discussion

cwerling·Jun 5, 2019Submission

Show HN: PSPTool – Parse and Trace Firmware of AMD's Platform Security Processor

3 points · Open discussion