IP Library Granted Patent US 11,516,256
Granted Patent B2
US 11,516,256 · App. 16/879,058 · Granted Nov 29, 2022

Certificate authorization policy for security protocol and data model capable devices

Inventors: Viswanath Ponnuru (Bangalore, IN); Rama Rao Bisa (Bangalore, IN); Chandrashekar Nelogal (Round Rock, TX); Chandrasekhar Mugunda (Austin, TX); Lee Eric Ballard (Georgetown, TX)
Assignee: DELL PRODUCTS L.P.
H04L63/20H04L9/3263H04L63/10H04L63/101
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Quick Facts
Patent No.
US 11,516,256
App. No.
16/879,058
Granted
Nov 29, 2022
Kind
B2
Abstract

A system for data processing, comprising a management controller operating on a processor and configured to load and execute one or more algorithms that provide the function of transmitting a request to a managed device using a Security Protocol and Data Model (SPDM) protocol and to receive a response from the managed device. A system management bus and security policy system operating on the processor is configured to execute one or more algorithms to process the response from the managed device to apply an SPDM security policy to the response.

Claims (25)

1. A system for data processing based on certificate authorization policy on device security capabilities, comprising:

a management controller operating on a hardware processor and configured to load and execute one or more algorithms that provide the function of transmitting a request to a managed device using a Security Protocol and Data Model (SPDM) protocol and to receive a response from the managed device; and

a system management bus and security policy system operating on the processor and in response to determining that the managed device is non-compliant with one or more original equipment manufacturer Platform Level Data Model (PLDM) functions that discovers the device security capabilities, configured to execute one or more algorithms to process a managed device certificate and to apply an SPDM security policy to the managed device certificate based on a system management bus discovery protocol.

2. The system of claim 1 wherein the system management bus and security policy system further comprises a disable policy system operating on the processor and configured to suspend application of the SPDM security policy if the managed device certificate is on a white list.

3. The system of claim 1 wherein the system management bus and security policy system further comprises a permissive policy operating on the processor and configured to execute one or more algorithms to quarantine the managed device if it fails to comply with the SPDM security policy if the managed device certificate in on a black list.

4. The system of claim 1 wherein the system management bus and security policy system further comprises an enforcing policy operating on the processor and configured to execute one or more algorithms to determine whether the managed device certificate is signed by a predetermined certificate authority.

5. The system of claim 1 wherein the system management bus and security policy system is configured to store the managed device certificate from a certificate authority.

6. The system of claim 1 wherein the system management bus and security policy system is configured to store a public key for the managed device certificate from a certificate authority.

7. The system of claim 1 wherein the system management bus and security policy system is configured to implement a system management bus address resolution protocol discovery process to read device security capabilities of a managed device.

8. The system of claim 1 wherein the system management bus and security policy system is configured to implement a system management bus address resolution protocol discovery process to read a certificate status of the managed device certificate.

9. The system of claim 1 wherein the system management bus and security policy system is configured to implement platform level data model functions to read device security protocols of a managed device.

10. A method for data processing based on certificate authorization policy, comprising:

transmitting a request to a managed device using a Security Protocol and Data Model (SPDM) protocol from a management controller operating on a processor under algorithmic control;

receiving a response from the managed device at the processor;

in response to determining that the managed device is non-compliant with one or more original equipment manufacturer Platform Level Data Model (LPDM) functions that discovers the device security capabilities, processing the response from the managed device to apply an SPDM security policy to a managed device certificate using a security policy system operating on the processor and a system management bus based on a system management bus discovery protocol.

11. The method of claim 10 further comprising suspending application of the SPDM security policy in response to a disable control function.

12. The method of claim 10 further comprising quarantining the managed device certificate if it fails to comply with the SPDM security policy.

13. The method of claim 10 further comprising determining whether the managed device certificate is signed by a predetermined certificate authority.

14. The method of claim 13 further comprising storing the managed device certificate if it is determined that the managed device has provided the managed device certificate.

15. The method of claim 13 further comprising quarantining the managed device if it is determined that the managed device has failed to provide the managed device certificate.

16. The method of claim 13 further comprising placing the managed device on a black list if it is determined that the managed device has failed to provide the certificate.

17. The method of claim 10 further comprising storing a public key for the managed device from a certificate authority.

18. The method of claim 10 further comprising reading device security capabilities of the managed device.

19. The method of claim 10 further comprising reading a certificate status of the managed device.

20. The method of claim 10 further comprising reading a device security protocol of the managed device.

Assignments (9)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053574/0221) Recorded Jun 10, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
Reel/Frame 060333/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053578/0183) Recorded Jun 10, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
Reel/Frame 060332/0864 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053573/0535) Recorded Jun 10, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
Reel/Frame 060333/0106 →
RELEASE OF SECURITY INTEREST AT REEL 053531 FRAME 0108 Recorded Nov 2, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
Reel/Frame 058001/0371 →
SECURITY INTEREST Recorded Aug 21, 2020
From: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 053578/0183 →
SECURITY INTEREST Recorded Aug 21, 2020
From: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 053573/0535 →
SECURITY INTEREST Recorded Aug 21, 2020
From: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
Reel/Frame 053574/0221 →
SECURITY AGREEMENT Recorded Aug 18, 2020
From: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Reel/Frame 053531/0108 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 26, 2020
From: PONNURU, VISWANATH; BISA, RAMA RAO; NELOGAL, CHANDRASHEKAR; MUGUNDA, CHANDRASEKHAR; BALLARD, LEE ERIC
To: DELL PRODUCTS L.P.
Reel/Frame 053050/0104 →
Continuity (1)
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