Dmitri,
It's hard to know what is going on without the code used to create the
key. In any case, here is the snippet of code that creates a Storage
key, extracted from the trousers testsuite:
//Create Object
result = Tspi_Context_CreateObject(hContext,
TSS_OBJECT_TYPE_RSAKEY,
TSS_KEY_TYPE_STORAGE |
TSS_KEY_SIZE_2048,
&hParentKey);
if (result != TSS_SUCCESS) {
print_error("Tspi_Context_CreateObject", result);
print_error_exit(nameOfFunction, err_string(result));
Tspi_Context_Close(hContext);
exit(result);
}
//Create Parent Key
result = Tspi_Key_CreateKey(hParentKey, hSRK, NULL_HPCRS);
if (result != TSS_SUCCESS) {
print_error("Tspi_Context_CreateObject", result);
print_error_exit(nameOfFunction, err_string(result));
Tspi_Context_Close(hContext);
exit(result);
}
Em 10-03-2014 14:47, Dmitri Toubelis escreveu:
> Hi,
>
> I'm using TPM emulator with tcsd-0.3.7 for testing and I'm getting some weird
> behavior. I can easily create a legacy or binding key under SRK but creating
> of a storage key fails. tpmd debug screen shows this:
>
> ...
> tpm_storage.c:636: Info: TPM_CreateWrapKey()
> tpm_handles.c:57: Debug: SRK valid? 1
> tpm_authorization.c:526: Info: tpm_verify_auth()
> tpm_authorization.c:527: Debug: handle = 02000000
> tpm_authorization.c:539: Debug: [TPM_ST_OSAP]
> tpm_cmd_handler.c:4077: Info: TPM command failed: (0x28) The key properties
> in TPM_KEY_PARMs are not supported by this TPM.
> ...
>
> So is it shortcoming of tpm emulator, or is it something in tcsd causing this
> error? The parameters of the key are the same as in the case with legacy or
> binding keys only key type is different. Here are exact key flags:
>
> TSS_FLAG storage_key_flags =
> TSS_KEY_TYPE_STORAGE |
> TSS_KEY_STRUCT_KEY12 |
> TSS_KEY_SIZE_2048 |
> TSS_KEY_VOLATILE |
> TSS_KEY_AUTHORIZATION;
>
> TSS_FLAG binding_key_flags =
> TSS_KEY_TYPE_BIND |
> TSS_KEY_STRUCT_KEY12 |
> TSS_KEY_SIZE_2048 |
> TSS_KEY_VOLATILE |
> TSS_KEY_AUTHORIZATION;
>
> I do not have access to a real TPM at the moment and I can not verify the
> code with the real thing. But I thought I ask first before building the test
> machine.
>
> Any ideas?
>
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