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Re: RootOfTrust post# 19732

Friday, 11/21/2003 11:20:35 AM

Friday, November 21, 2003 11:20:35 AM

Post# of 249628
Ramsey....EK loading?

What about Infineon?& who is the TTP here?
Hope it's Wave.....:)

19. Are the unique keys in a TPM generated, and the public keys recorded by a Trusted Third Party (TPP), at the time of manufacture? If not, could a piece of software generate a key pair, pretend to be a TPM and have the public key certified?

The unique key in the TPM, known as the endorsement key (EK), is generated during manufacturing. To validate that the EK comes from a valid TPM the manufacturer creates an endorsement credential that states that the EK in question comes from a valid TPM. So while nyone could create a SW EK and claim it comes from a valid TPM they would not have a valid endorsement credential to accompany that claim. This implies that those who rely on an EK will validate that it comes from a valid TPM.


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