Copyright (C) 2004 International Business Machines Corporation
Written by Megan Schneider based on the Trusted Computing Group Software Stack Specification Version 1.1 Golden

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1 TCG Software Stack Developers Reference

Tspi_Context_LoadKeyByBlob - load a key into the TPM using the key's blob.

 #include <tss/platform.h>  #include <tss/tcpa_defines.h>  #include <tss/tcpa_typedef.h>  #include <tss/tcpa_struct.h>  #include <tss/tss_typedef.h>  #include <tss/tss_structs.h>  #include <tss/tspi.h>  "TSS_RESULT Tspi_Context_LoadKeyByBlob(TSS_HCONTEXT " hContext ", TSS_HKEY " hUnwrappingKey ","  " UINT32 " ulBlobLength ", BYTE* " rgbBlobData ","  " TSS_HKEY* " phKey "); " 

Tspi_Context_LoadKeyByBlob creates a key based on the information gotten by the key blob. It then loads the key into the TPM, which unwraps the key blob by using the key associated with hUnwrappingKey. The key blob addressed by \fihUnwrappingKey must have been already loaded into the TPM. This function returns a handle to the created key object.

The hContext parameter is the handle of the context object. The hUnwrappingKey parameter is the handle of the key object which should be used to unwrap the key information associated with rgbBlobData. The rgbBlobData parameter is the wrapped key to load. The phKey parameter receives the handle of the key object representing the loaded key.

Tspi_Context_LoadKeyByBlob returns TSS_SUCCESS on success, otherwise one of the following values is returned:

TSS_E_INVALID_HANDLE hContext is not a valid handle.

TSS_E_INTERNAL_ERROR An internal SW error has been detected.

TSS_E_BAD_PARAMETER One or more parameters is bad.

Tspi_Context_LoadKeyByBlob conforms to the Trusted Computing Group Software Specification version 1.1 Golden

Tspi_Context_LoadKeyByUUID(3), Tspi_Policy_SetSecret(3), Tspi_GetPolicyObject(3), Tspi_Key_CreateKey(3), Tspi_GetAttribUint32(3).