.\" 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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.TH "Tspi_Key_UnloadKey" 3 "2004-05-25" "TSS 1.1"
.ce 1
TCG Software Stack Developer's Reference
.SH NAME
Tspi_Key_UnloadKey \- unload a key from the 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_Key_UnloadKey(TSS_HKEY " hKey ");"
.fi
.sp
.ad
.hy

.SH "DESCRIPTION"
.PP
\fBTspi_Key_UnloadKey\fR unloads the key referenced
by the given key object from the TPM. This call will result in a
TPM_EvictKey operation for the specified key.


.SH "PARAMETERS"
.PP
.SS hKey
The \fIhKey\fR parameter is the handle of the key object to unload.

.SH "RETURN CODES"
.PP
\fBTspi_Key_UnloadKey\fR returns TSS_SUCCESS on success, otherwise
one of the following values is returned:
.TP
.SM TSS_E_INVALID_HANDLE
\fIhKey\fR is not a valid handle.

.TP
.SM TSS_E_INTERNAL_ERROR
An internal SW error has been detected.

.TP
.SM TSS_E_BAD_PARAMETER
One or more parameters is bad.

.SH "CONFORMING TO"

.PP
\fBTspi_Key_UnloadKey\fR conforms to the Trusted Computing Group Software
Specification version 1.1 Golden

.SH "SEE ALSO"

.PP
\fBTspi_Key_LoadKey\fR(3), \fBTspi_Key_GetPubKey\fR(3).