TPMCmd/tpm/include/prototypes/Context_spt_fp.h

/* Microsoft Reference Implementation for TPM 2.0
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 *  of conditions and the following disclaimer.
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/*(Auto)
    Automatically Generated by TpmPrototypes version 2.2 February 10, 2016 
    Date: Sep  9, 2016 Time: 01:03:57 PM  
*/

#ifndef    _CONTEXT_SPT_FP_H_
#define    _CONTEXT_SPT_FP_H_

//*** ComputeContextProtectionKey()
// This function retrieves the symmetric protection key for context encryption
// It is used by TPM2_ConextSave and TPM2_ContextLoad to create the symmetric
// encryption key and iv
// return type: void
void
ComputeContextProtectionKey(
    TPMS_CONTEXT    *contextBlob,   // IN: context blob
    TPM2B_SYM_KEY   *symKey,        // OUT: the symmetric key
    TPM2B_IV        *iv             // OUT: the IV.
    );

//*** ComputeContextIntegrity()
// Generate the integrity hash for a context
//       It is used by TPM2_ContextSave to create an integrity hash
//       and by TPM2_ContextLoad to compare an integrity hash
// return type: void
void
ComputeContextIntegrity(
    TPMS_CONTEXT    *contextBlob,   // IN: context blob
    TPM2B_DIGEST    *integrity      // OUT: integrity
    );

//*** SequenceDataExport();

// This function is used scan through the sequence object and
// either modify the hash state data for export (contextSave) or to
// import it into the internal format (contextLoad).
// This function should only be called after the sequence object has been copied
// to the context buffer (contextSave) or from the context buffer into the sequence
// object. The presumption is that the context buffer version of the data is the
// same size as the internal representation so nothing outsize of the hash context
// area gets modified.
void
SequenceDataExport(
    HASH_OBJECT         *object,        // IN: an internal hash object
    HASH_OBJECT_BUFFER  *exportObject   // OUT: a sequence context in a buffer
    );

//*** SequenceDataImport();

// This function is used scan through the sequence object and
// either modify the hash state data for export (contextSave) or to
// import it into the internal format (contextLoad).
// This function should only be called after the sequence object has been copied
// to the context buffer (contextSave) or from the context buffer into the sequence
// object. The presumption is that the context buffer version of the data is the
// same size as the internal representation so nothing outsize of the hash context
// area gets modified.
void
SequenceDataImport(
    HASH_OBJECT         *object,        // IN/OUT: an internal hash object
    HASH_OBJECT_BUFFER  *exportObject   // IN/OUT: a sequence context in a buffer
    );


#endif  // _CONTEXT_SPT_FP_H_