The SRK is of type storage, which, according to section 32 of the TPM Main
Specification, Part 1, can only TPM_Unseal.  You can in fact use it to
"decrypt" using Seal/Unseal, but to Hal's point, creating a new key of type
legacy is typically the right thing to do for what it sounds Evgeny's
problem is.

fes


On Tue, Nov 23, 2010 at 9:44 AM, Arshad Noor <[email protected]>wrote:

> Could you clarify this, Hal?
>
> The TCG specifically discusses the TPM_UnBind command which "takes
> the data blob that is the result of a Tspi_Data_Bind command and
> decrypts it for export to the User" in its specification (Page 66,
> TPM Main Part 3 Commands, Specifcation Version 1.2).
>
> Arshad Noor
> StrongAuth, Inc.
>
> On 11/22/2010 11:31 PM, Hal Finney wrote:
> > This won't work because the SRK cannot decrypt.
> >
>
>
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