func (tt *TPM2Tao) loadQuote() (tpm2.Handle, error) {
qh, err := tpm2.LoadContext(tt.rw, tt.quoteContext)
if err != nil {
return tpm2.Handle(0), errors.New("Load Context fails for quote")
}
return qh, nil
}
// IAH: does it build?
func (tt *TPM2Tao) loadSeal() (tpm2.Handle, error) {
sh, err := tpm2.LoadContext(tt.rw, tt.sealContext)
if err != nil {
return tpm2.Handle(0), errors.New("Load Context fails for root")
}
return sh, nil
}
func (tt *TPM2Tao) loadRoot() (tpm2.Handle, error) {
rh, err := tpm2.LoadContext(tt.rw, tt.rootContext)
if err != nil {
return tpm2.Handle(0), errors.New("Load Context fails for root")
}
return rh, nil
}
// FinalizeTPM2Tao releases the resources for the TPM2Tao.
func FinalizeTPM2Tao(tt *TPM2Tao) {
if tt.sessionHandle != 0 {
tpm2.FlushContext(tt.rw, tpm2.Handle(tt.sessionHandle))
}
tt.sessionHandle = 0
if tt.rootHandle != 0 {
tpm2.FlushContext(tt.rw, tpm2.Handle(tt.rootHandle))
}
tt.rootHandle = 0
if tt.sealHandle != 0 {
tpm2.FlushContext(tt.rw, tpm2.Handle(tt.sealHandle))
}
tt.sealHandle = 0
// Release the file handle.
tt.rw.Close()
}
func (tt *TPM2Tao) loadSession() (tpm2.Handle, []byte, error) {
sh, digest, err := tpm2.AssistCreateSession(tt.rw,
tpm2.AlgTPM_ALG_SHA1, tt.pcrs)
if err != nil {
return tpm2.Handle(0), nil, err
}
return sh, digest, nil
}