Method and apparatus for binding TPM keys to execution entities

Details Method and apparatus for binding TPM keys to execution entities Method and apparatus for binding TPM keys to execution entities

2011-03-15

2011-03-15

Chen, Shin-Hon (Department: 2431)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S156000, C713S164000, C713S186000, C380S044000, C380S277000

Reexamination Certificate

active

07908483

ABSTRACT:
A method and apparatus for binding trusted platform module (TPM) keys to execution entities are described. In one embodiment, the method includes the receipt of an authorization request issued by an execution entity for authorization data. According to the authorization request, the execution entity may be measured to generate an entity digest value. Once the entity digest value is generated, a platform reference module may grant the authorization request if the entity digest value verifies that the execution entity is an owner of the key held by the TPM. Accordingly, in one embodiment, a platform reference module, rather than an execution entity, holds the authorization data required by a TPM to use a key owned by the execution entity and held within sealed storage by the TPM. Other embodiments are described and claimed.

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