author christos <>
Sat, 28 Jan 2012 01:35:04 +0000
changeset 208533 fb64bd2b788b
permissions -rw-r--r--
import trousers 0.3.8 from sourceforge. TrouSerS is the open-source TCG Software Stack

.\" Copyright (C) 2007 International Business Machines Corporation
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.TH "Tspi_TPM_CMKSetRestrictions" 3 "2007-12-13" "TSS 1.2"
.ce 1
TCG Software Stack Developer's Reference
Tspi_TPM_CMKSetRestrictions \- set restrictions on use of delegated Certified Migratable Keys
.ad l
.hy 0
.B #include <tss/tspi.h>
.BI "TSS_RESULT Tspi_TPM_CMKSetRestrictions(TSS_HTPM " hTPM ", TSS_CMK_DELEGATE " CmkDelegate ");"

\fBTspi_TPM_CMKSetRestrictions\fR is used to set restrictions on the delegated use of Certified Migratable Keys (CMKs).  Use of this command cannot itself be delegated.

The \fIhTPM\fR parameter is used to specify the handle of the TPM object.
.SS CmkDelegate
The \fICmkDelegate\fR parameter is a bitmask describing the kinds of CMKs that can be used in a delegated auth session.  Each bit represents a type of key.  If the bit of a key type is set, then the CMK can be used in a delegated authorization session, otherwise use of that key will result in a TPM_E_INVALID_KEYUSAGE return code from the TPM.

The possible values of \fICmkDelegate\fR are any combination of the following flags logically OR'd together:

Allow use of signing keys.

Allow use of storage keys.

Allow use of binding keys.

Allow use of legacy keys.

Allow use of migratable keys.

\fBTspi_TPM_CMKSetRestrictions\fR returns TSS_SUCCESS on success, otherwise one of the
following values is returned:
\fIhTPM\fR is not a valid handle.

An internal SW error has been detected.


\fBTspi_TPM_CMKSetRestrictions\fR conforms to the Trusted Computing Group
Software Specification version 1.2 Errata A


\fBTspi_TPM_CMKApproveMA\fR(3), \fBTspi_TPM_CMKCreateTicket\fR(3), \fBTspi_Key_CMKCreateBlob\fR(3)