Securely upgrading or downgrading platform components

• US 8,667,270 B2
• Filed: 02/10/2012
• Issued: 03/04/2014
• Est. Priority Date: 02/10/2012
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Aciicmez, Onur, Brutch, Tasneem
• Primary Examiner(s): THIAW, CATHERINE B
• Application Number:
  US13/371,195
• Publication Number:
  US 20130212380A1
• Time in Patent Office: 753 Days
• Field of Search: 713/155, 713/156, 713168-171, 717168-173, 709/203, 709219-222
• US Class Current: 713/156
• CPC Class Codes: G06F 8/65 Updates security arrangements therefor G06F21/57
• CPC Class Codes: H04L 63/0823 using certificates cryptographic mechanisms or cryptographic arrangements for entity authentication involving certificates H04L9/3263
• CPC Class Codes: H04L 63/0869 for achieving mutual authentication cryptographic mechanisms or cryptographic arrangements for mutual authentication H04L9/3273
• CPC Class Codes: H04L 9/083 involving central third party, e.g. key distribution center [KDC] or trusted third party [TTP]
• CPC Class Codes: H04L 9/321 involving a third party or a trusted authority
• CPC Class Codes: H04L 9/3247 involving digital signatures
• CPC Class Codes: H04L 9/3263 involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements network architectures or network communication protocols for supporting authentication of entities using certificates in a packet data network H04L63/0823

Abstract

A method for securely altering a platform component is provided, comprising: assigning certificates for public encryption and signature verification keys for the device; assigning certificates for public encryption and signature verification keys for an upgrade server; mutually authenticating a device containing the platform component and the upgrade server; causing the device and the upgrade server to exchange a session key; and providing an alteration to be made to the platform component from the upgrade server to the device using the session key.

Claims

1. A method for securely altering a platform component, comprising:

generating, by an upgrade manager associated with a device, encryption and digital signature key pairs for the device, wherein the device comprises the platform component;

obtaining public encryption and signature verification keys for a provisioning server from a certification authority;

mutually authenticating the device and the provisioning server using the public encryption and signature verification keys for the provisioning server and the device, wherein the provisioning server generates a registration identification associated with the device;

assigning, by the certification authority, certificates for public encryption and signature verification keys for the device;

assigning, by the certification authority, certificates for public encryption and signature verification keys for an upgrade server, wherein the upgrade server comprises an alteration for the platform component;

sending an alteration request from the upgrade manager to the upgrade server, causing the upgrade server to obtain assigned certificates for public encryption and signature verification keys for the upgrade manager from the certification authority, wherein the alteration request comprises the registration identification associated with the device;

mutually authenticating the device and the upgrade server based on the assigned certificates and the registration identification associated with the device;

causing the device and the upgrade server to exchange a session key during the mutual authenticating; and

providing the alteration from the upgrade server to the device using the session key exchanged during the mutual authenticating.

2. The method of claim 1, wherein the alteration is an upgrade.

3. The method of claim 1, wherein the alteration is a downgrade.

4. The method of claim 1, wherein:

the alteration is downloaded to a secure partition of the device, wherein the alteration is decrypted and verified using the session key and at least one signature verification key for the device.

5. The method of claim 1, wherein the platform component is one of a processor and a core in a multi-core processor.

6. The method of claim 1, further comprising:

registering the device with the provisioning server, wherein the provisioning server generates the registration identification associated with the device upon successful authentication.

7. The method of claim 1, wherein the platform component is one of the following:

a discrete or integrated hardware component on the device, or a firmware or software component on the device.

8. The method of claim 1, wherein the method is performed in response to a change in a subscription level, wherein the subscription level defines a component upgrade level and periodic price to be paid for performance matching the component upgrade level.

9. A method for securely altering a platform component, comprising:

generating, by an upgrade manager associated with a device, encryption and digital signature key pairs for the device, wherein the device includes the platform component;

obtaining public encryption and signature verification keys for a provisioning server from a certification authority;

mutually authenticating the device and the provisioning server using the public encryption and signature verification keys for the provisioning server and the device, wherein the provisioning server generates a registration identification associated with the device;

contacting, by the upgrade manager, the certification authority for assigned certificates for public encryption and signature verification keys for the device;

contacting, by the upgrade manager, the certification authority for assigned certificates for public encryption and signature verification keys for an upgrade server, wherein the upgrade server comprises a secure alteration for the platform component;

sending an alteration request from the upgrade manager to the upgrade server, causing the upgrade server to obtain assigned certificates for public encryption and signature verification keys for the upgrade manager from the certification authority, wherein the alteration request comprises the registration identification associated with the device;

mutually authenticating the device and the upgrade server based on the assigned certificates and the registration identification associated with the device;

causing the device and the upgrade server to exchange a session key during the mutual authenticating; and

providing the secure alteration from the upgrade server to the device via the upgrade manager using the session key.

10. The method of claim 9, wherein:

the secure alteration is downloaded to a secure partition of the device, wherein the secure alteration is decrypted and verified using the session key and at least one signature verification key for the device;

the provisioning server generates the registration identification associated with the device upon successful authentication of the device with the provisioning server; and

the platform component is altered on-demand and in-field.

11. The method of claim 9, wherein the method is performed in response to a change in a subscription level, wherein the subscription level defines a component upgrade level and periodic price to be paid for performance matching the component upgrade level.

12. A system comprising:

a device comprising a platform component;

an upgrade manager;

a certification authority;

a provisioning server; and

an upgrade server comprising an alteration for the platform component;

wherein the upgrade manager is configured to;

generate encryption and digital signature key pairs for the device;

obtain public encryption and signature verification keys for the provisioning server from the certification authority;

perform one side of mutual authentication between the device and the provisioning server using the public encryption and signature verification keys for the provisioning server and the device;

contact the certification authority for assigned certificates for public encryption and signature verification keys for the device;

contact the certification authority for assigned certificates for public encryption and signature verification keys for the upgrade server;

send an alteration request from the upgrade manager to the upgrade server, causing the upgrade server to obtain assigned certificates for public encryption and signature verification keys for the upgrade manager from the certification authority, wherein the alteration request comprises a registration identification associated with the device;

perform one side of mutual authentication between the device and the upgrade server based on the assigned certificates and the registration identification associated with the device;

send a session key to the upgrade server; and

receive the alteration from the upgrade server to the device using the session key;

wherein the certification authority is configured to;

provide the encryption and signature verification keys for the provisioning server to the upgrade manager;

assign certificates for public encryption and signature verification keys for the device; and

assign certificates for public encryption and signature verification keys for the upgrade server;

wherein the provisioning server is configured to;

perform the other side of mutual authentication between the device and the provisioning server using the public encryption and signature verification keys for the provisioning server and the device; and

verify device information for the device; and

wherein the upgrade server is configured to;

obtain assigned certificates for public encryption and signature verification keys for the upgrade manager from the certification authority;

perform the other side of mutual authentication between the device and the upgrade server using the public encryption and signature verification keys for the upgrade server and the device;

exchange the session key with the upgrade manager; and

send the alteration to the upgrade manager using the session key.

13. The system of claim 12, wherein the upgrade manager is located on the device.

14. The system of claim 12, wherein the device further comprises:

a secure partition including a secure key store, a secure data store, and native cryptographic functions;

wherein the alteration is downloaded to the secure partition for decryption and verification using the session key and at least one signature verification key.

15. The system of claim 14, wherein the native cryptographic functions include:

a random number generator;

a hash generator;

a cryptographic key generator; and

a digital signature and encryption/decryption engine.

16. The system of claim 14, wherein the secure partition is only accessible in a privileged mode.

17. The system of claim 16, wherein the device further contains a secure monitor designed to determine if the device is in a privileged mode.

18. A system for securely altering a platform component, comprising:

an upgrade manager configured for;

generating encryption and digital signature key pairs for a device associated with the upgrade manager, wherein the device includes the platform component;

obtaining public encryption and signature verification keys for a provisioning server from a certification authority;

mutually authenticating the device and the provisioning server using the public encryption and signature verification keys for the provisioning server and the device;

contacting the certification authority for assigned certificates for public encryption and signature verification keys for the device;

contacting the certification authority for assigned certificates for public encryption and signature verification keys for an upgrade server, wherein the upgrade server comprises a secure alteration for the platform component;

sending an alteration request from the upgrade manager to the upgrade server, causing the upgrade server to obtain assigned certificates for public encryption and signature verification keys for the upgrade manager from the certification authority, wherein the alteration request comprises a registration identification associated with the device;

mutually authenticating the device and the upgrade server based on the assigned certificates and the registration identification associated with the device;

causing the device and the upgrade server to exchange a session key during the mutual authenticating; and

providing the secure alteration from the upgrade server to the device using the session key.

19. The system of claim 18, wherein:

the secure alteration is downloaded to a secure partition of the device, wherein the secure alteration is decrypted and verified using the session key and at least one signature verification key for the device;

the provisioning server generates the registration identification associated with the device upon successful authentication of the device with the provisioning server; and

the platform component is a computer processor.

20. A program storage device readable by a machine tangibly embodying a program of instructions executable by the machine to perform a method for securely altering a platform component, the method comprising:

generating, by an upgrade manager associated with a device, encryption and digital signature key pairs for the device, wherein the device includes the platform component;

obtaining public encryption and signature verification keys for a provisioning server from a certification authority;

mutually authenticating the device and the provisioning server using the public encryption and signature verification keys for the provisioning server and the device;

contacting, by the upgrade manager, the certification authority for assigned certificates for public encryption and signature verification keys for the device;

contacting, by the upgrade manager, the certification authority for assigned certificates for public encryption and signature verification keys for an upgrade server, wherein the upgrade server comprises a secure alteration for the platform component;

sending an alteration request from the upgrade manager to the upgrade server, causing the upgrade server to obtain assigned certificates for public encryption and signature verification keys for the upgrade manager from the certification authority, wherein the alteration request comprises a registration identification associated with the device;

mutually authenticating the device and the upgrade server based on the assigned certificates and the registration identification associated with the device;

causing the device and the upgrade server to exchange a session key during the mutual authenticating; and

providing the secure alteration from the upgrade server to the device via the upgrade manager using the session key.

21. The program storage device of claim 20, wherein:

the secure alteration is downloaded to a secure partition of the device, wherein the secure alteration is decrypted and verified using the session key and at least one signature verification key for the device;

the provisioning server generates the registration identification associated with the device upon successful authentication of the device with the provisioning server; and

the platform component is a feature of a hardware component.

22. The program storage device of claim 21, wherein the feature is hyperthreading.

23. The program storage device of claim 21, wherein the feature is virtualization technology.

24. The program storage device of claim 21, wherein the feature is remote management.