AMD Platform Security Processor: Difference between revisions
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|Logo=AMD logo.svg|Website=https://www.amd.com/en.html}} | |Logo=AMD logo.svg|Website=https://www.amd.com/en.html}} | ||
The '''AMD Platform Security Processor (PSP)''', also known as the '''AMD Secure Processor''', is an autonomous processor embedded on most modern AMD CPU's since 2013. The PSP has full access to memory and is capable of running without the main CPU cores being active.<ref>{{Cite web |last=Eichner |first=Alexander |last2=Buhren |first2=Robert |date=2020-08-05 |title=All you ever wanted to know about the AMD Platform Security Processor and were afraid to emulate |url=https://i.blackhat.com/USA-20/Wednesday/us-20-Buhren-All-You-Ever-Wanted-To-Know-About-The-AMD-Platform-Security-Processor-And-Were-Afraid-To-Emulate.pdf |url-status=live |access-date=2026-02-04 |website=blackhat.com}}</ref> | The '''[[AMD]] Platform Security Processor (PSP)''', also known as the '''AMD Secure Processor''', is an autonomous processor embedded on most modern AMD CPU's since 2013. The PSP has full access to memory and is capable of running without the main CPU cores being active.<ref>{{Cite web |last=Eichner |first=Alexander |last2=Buhren |first2=Robert |date=2020-08-05 |title=All you ever wanted to know about the AMD Platform Security Processor and were afraid to emulate |url=https://i.blackhat.com/USA-20/Wednesday/us-20-Buhren-All-You-Ever-Wanted-To-Know-About-The-AMD-Platform-Security-Processor-And-Were-Afraid-To-Emulate.pdf |url-status=live |access-date=2026-02-04 |website=blackhat.com}}</ref> | ||
AMD has not provided much information about the PSP, but several features are know, including:<ref>{{Cite web |date=2023-04-17 |title=Reversing the AMD Secure Processor (PSP) |url=https://dayzerosec.com/blog/2023/04/17/reversing-the-amd-secure-processor-psp.html |url-status=live |archive-url=https://web.archive.org/web/20260112172321/https://dayzerosec.com/blog/2023/04/17/reversing-the-amd-secure-processor-psp.html |archive-date=2026-01-12 |access-date=2026-02-04 |website=dayzerosec.com}}</ref> | AMD has not provided much information about the PSP, but several features are know, including:<ref>{{Cite web |date=2023-04-17 |title=Reversing the AMD Secure Processor (PSP) |url=https://dayzerosec.com/blog/2023/04/17/reversing-the-amd-secure-processor-psp.html |url-status=live |archive-url=https://web.archive.org/web/20260112172321/https://dayzerosec.com/blog/2023/04/17/reversing-the-amd-secure-processor-psp.html |archive-date=2026-01-12 |access-date=2026-02-04 |website=dayzerosec.com}}</ref> | ||
* CPU initialization | *CPU initialization | ||
* Hardware-accelerated cryptography | *Hardware-accelerated cryptography | ||
* Hardware/software integrity verification ([[wikipedia:Trusted_Platform_Module|TPM]]) | *Hardware/software integrity verification ([[wikipedia:Trusted_Platform_Module|TPM]]) | ||
* Facilitating Secure Encrypted Virtualization ([https://www.amd.com/en/developer/sev.html SEV]) | *Facilitating Secure Encrypted Virtualization ([https://www.amd.com/en/developer/sev.html SEV]) | ||
==Concerns== | ==Concerns== | ||
| Line 25: | Line 25: | ||
==See also== | ==See also== | ||
*[[Intel Management Engine]] | |||
* [[Intel Management Engine]] | |||
==References== | ==References== | ||
Revision as of 18:34, 4 February 2026
AMD Platform Security Processor
| Basic Information | |
|---|---|
| Release Year | 2013 |
| Product Type | Surveillance, Security, Hardware, Computers, Firmware |
| In Production | Yes |
| Official Website | https://www.amd.com/en.html |
The AMD Platform Security Processor (PSP), also known as the AMD Secure Processor, is an autonomous processor embedded on most modern AMD CPU's since 2013. The PSP has full access to memory and is capable of running without the main CPU cores being active.[1]
AMD has not provided much information about the PSP, but several features are know, including:[2]
- CPU initialization
- Hardware-accelerated cryptography
- Hardware/software integrity verification (TPM)
- Facilitating Secure Encrypted Virtualization (SEV)
Concerns
AMD has denied requests to open-source the software running on the PSP.[3] This means that the inner workings of the PSP cannot be independently verified and bugfixes can only be performed by AMD. This is an example of "security through obscurity", which has been criticized for taking away consumer rights.
Vulnerabilities
[Placeholder]
See also
References
- ↑ Eichner, Alexander; Buhren, Robert (2020-08-05). "All you ever wanted to know about the AMD Platform Security Processor and were afraid to emulate" (PDF). blackhat.com. Retrieved 2026-02-04.
{{cite web}}: CS1 maint: url-status (link) - ↑ "Reversing the AMD Secure Processor (PSP)". dayzerosec.com. 2023-04-17. Archived from the original on 2026-01-12. Retrieved 2026-02-04.
- ↑ Williams, Rob (19 Jul 2017). "AMD Confirms It Won't Opensource EPYC's Platform Security Processor Code". HotHardware. Archived from the original on 2025-11-23. Retrieved 2026-02-04.