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.\" Copyright (C) 2005 International Business Machines Corporation
.\" Written by Kent Yoder based on the Trusted Computing Group Software Stack Specification Version 1.1 Golden
.\"
.de Sh \" Subsection
.br
.if t .Sp
.ne 5
.PP
\fB\\$1\fR
.PP
..
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Ip \" List item
.br
.ie \\n(.$>=3 .ne \\$3
.el .ne 3
.IP "\\$1" \\$2
..
.TH "Tspi_TPM_TakeOwnership" 3 "2004-05-25" "TSS 1.1"
.ce 1
TCG Software Stack Developer's Reference
.SH NAME
Tspi_TPM_TakeOwnership \- take ownership of a TPM
.SH "SYNOPSIS"
.ad l
.hy 0
.nf
.B #include <tss/platform.h>
.B #include <tss/tcpa_defines.h>
.B #include <tss/tcpa_typedef.h>
.B #include <tss/tcpa_struct.h>
.B #include <tss/tss_typedef.h>
.B #include <tss/tss_structs.h>
.B #include <tss/tspi.h>
.sp
.BI "TSS_RESULT Tspi_TPM_TakeOwnership(TSS_HTPM " hTPM ", TSS_HKEY " hKeySRK ","
.BI " TSS_HKEY " hEndorsementPubKey ");"
.fi
.sp
.ad
.hy
.SH "DESCRIPTION"
.PP
\fBTspi_TPM_TakeOwnership\fR
takes ownership of a TPM. Taking ownership is the process of inserting a shared secret into the TPM. The owner of the TPM (anyone who knows the shared secret) has the right to perform special operations.
.SH "PARAMETERS"
.PP
.SS hTPM
The \fIhTPM\fR parameter is used to specify the handle of the TPM object.
.SS hKeySRK
The \fIhKeySRK\fR parameter is the handle to the object representing the TPM's Storage Root Key.
.SS hEndorsementPubKey
The \fIhEndorsementPubKey\fR parameter is the handle to the object representing the TPM's endorsement public key. This key is required for encrypting the secret of the SRK and the TPM owner secret. If NULL, the TSP internally queries the TPM for that endorsement public key.
.SH "RETURN CODES"
.PP
\fBTspi_TPM_TakeOwnership\fR returns TSS_SUCCESS on success, otherwise one of the
following values is returned:
.TP
.SM TSS_E_INVALID_HANDLE
Either the TPM or one of the key handles is not valid.
.TP
.SM TSS_E_INTERNAL_ERROR
An internal SW error has been detected.
.SH "CONFORMING TO"
.PP
\fBTspi_TPM_TakeOwnership\fR conforms to the Trusted Computing Group
Software Specification version 1.1 Golden
.SH "SEE ALSO"
.PP
\fBTspi_TPM_ClearOwner\fR(3)
.PP
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