tpm_ownerclear.3

来自「IBM开发的TPM的驱动, 有少量的例子可以供参考」· 3 代码 · 共 39 行

.\" Copyright 2004 IBM (Jeff Kravitz)
.\"
.\" Written Feb 10 2004, Jeff Kravitz
.\"
.TH "TPM_OwnerClear" 3  2004-02-10 "IBM" "TPM Library"
.SH NAME
TPM_OwnerClear
.SH SYNOPSIS
.nf
.B #include <tpmfunc.h>
.sp
.BR "uint32_t TPM_OwnerClear" "(unsigned char *ownauth)"
.fi
.SH DESCRIPTION
The \fBTPM_OwnerClear()\fP function performs the function of removing
the existing \fIowner authorization data\fP,
\fIstorage root key\fP,
and \fIstorage root key authorization data\fP from a TPM.
.SH ARGUMENTS
The argument is a pointer to the owner authorization data
(a 20 byte value which is usually calculated as the hash of a password).
.SH NOTES
.P
This function cannot be performed unless the TPM currently has an owner.
This function can be permanently disabled by a TPM operation \fBDisable Owner Clear\fP.
This function will require some kind of physical presence at the
computer itself, i.e. an owner can not be removed remotely.
.P
The authorization data argument consists of
a 20 byte value which is usually calculated as the hash of a real
password.
.SH "RETURN VALUE"
0 if the operation is successful. non-zero otherwise.
The non zero value can be converted to an error message via the function \fBTPM_GetErrMsg()\fP.
.SH "SEE ALSO"
.BR TPM_GetErrMsg(3) .
.SH AUTHOR
Jeff Kravitz, IBM T.J. Watson Research Center