author thorpej <>
Thu, 19 Sep 2019 01:44:48 +0000
changeset 454497 219ff5bdcf57
parent 447310 417343e082a7
permissions -rw-r--r--
Create the character device for spiflash, in addition to the block device. This is needed for getdiskrawname() to DTRT (for installboot(8)). XXX pullup-9

.\" Copyright (C) 2004 International Business Machines Corporation
.\" Written by Megan Schneider based on the Trusted Computing Group Software Stack Specification Version 1.1 Golden
.de Sh \" Subsection
.if t .Sp
.ne 5
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
.de Ip \" List item
.ie \\n(.$>=3 .ne \\$3
.el .ne 3
.IP "\\$1" \\$2
.TH "Tspi_Hash_Sign" 3 "2004-05-25" "TSS 1.1"
.ce 1
TCG Software Stack Developer's Reference
Tspi_Hash_Sign \- sign the hash data of an object with a signing key
.ad l
.hy 0
.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>
.BI "TSS_RESULT Tspi_Hash_Sign(TSS_HHASH " hHash ",              TSS_HKEY " hKey ","
.BI "                          UINT32    " pulSignatureLength ", BYTE**   " prgbSignature ");"

\fBTspi_Hash_Sign\fR signs the hash data of an
object with a given signing key. The data must be set at the hash
instance associated with \fIhHash\fR by calling
\fBTspi_Hash_SetHashValue\fR or \fBTspi_Hash_UpdateHashValue\fR. The
\fBTspi_Hash_Sign\fR method allocates a memory block for the
\fIprgbSignature\fR data. This memory must be released using

.SS hHash
The handle to the hash object instance whose hash value should be signed.
.SS hKey
Handle to the key object which should be used for the signature.
.SS pulSignatureLength
Receives the length of the signature data returned at the parameter
\fIprgbSignature\fR on successful completion.
.SS prgbSignature
Receives a pointer to the signature data on successful completion.

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

An internal SW error has been detected.

One or more parameters is bad.

Hash length is inconsistent with hash algorithm.

Hash object has no internal hash value.

The hash algorithm identifier is not set.


\fBTspi_Hash_Sign\fR conforms to the Trusted Computing Group Software
Specification version 1.1 Golden


\fBTspi_Hash_UpdateHashValue\fR(3), \fBTspi_Hash_SetHashValue\fR(3),