NetBSD/lib/libcrypto/man/openssl_spkac.1

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.TH SPKAC 1 "0.9.5a" "22/Jul/2000" "OpenSSL"
.UC
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.rm #[ #] #H #V #F C
.SH "NAME"
spkac \- SPKAC printing and generating utility
.SH "SYNOPSIS"
\fBopenssl\fR \fBspkac\fR
[\fB\-in filename\fR]
[\fB\-out filename\fR]
[\fB\-key keyfile\fR]
[\fB\-passin arg\fR]
[\fB\-challenge string\fR]
[\fB\-pubkey\fR]
[\fB\-spkac spkacname\fR]
[\fB\-spksect section\fR]
[\fB\-noout\fR]
[\fB\-verify\fR]
.SH "DESCRIPTION"
The \fBspkac\fR command processes Netscape signed public key and challenge
(SPKAC) files. It can print out their contents, verify the signature and
produce its own SPKACs from a supplied private key.
.SH "COMMAND OPTIONS"
.Ip "\fB\-in filename\fR" 4
This specifies the input filename to read from or standard input if this
option is not specified. Ignored if the \fB\-key\fR option is used.
.Ip "\fB\-out filename\fR" 4
specifies the output filename to write to or standard output by
default.
.Ip "\fB\-key keyfile\fR" 4
create an \s-1SPKAC\s0 file using the private key in \fBkeyfile\fR. The
\fB\-in\fR, \fB\-noout\fR, \fB\-spksect\fR and \fB\-verify\fR options are ignored if
present.
.Ip "\fB\-passin password\fR" 4
the input file password source. For more information about the format of \fBarg\fR
see the \fB\s-1PASS\s0 \s-1PHRASE\s0 \s-1ARGUMENTS\s0\fR section in the \fIopenssl(1)|openssl(1)\fR manpage.
.Ip "\fB\-challenge string\fR" 4
specifies the challenge string if an \s-1SPKAC\s0 is being created.
.Ip "\fB\-spkac spkacname\fR" 4
allows an alternative name form the variable containing the
\s-1SPKAC\s0. The default is \*(L"\s-1SPKAC\s0\*(R". This option affects both
generated and input \s-1SPKAC\s0 files.
.Ip "\fB\-spksect section\fR" 4
allows an alternative name form the section containing the
\s-1SPKAC\s0. The default is the default section.
.Ip "\fB\-noout\fR" 4
don't output the text version of the \s-1SPKAC\s0 (not used if an
\s-1SPKAC\s0 is being created).
.Ip "\fB\-pubkey\fR" 4
output the public key of an \s-1SPKAC\s0 (not used if an \s-1SPKAC\s0 is
being created).
.Ip "\fB\-verify\fR" 4
verifies the digital signature on the supplied \s-1SPKAC\s0.
.SH "EXAMPLES"
Print out the contents of an SPKAC:
.PP
.Vb 1
\& openssl spkac -in spkac.cnf
.Ve
Verify the signature of an SPKAC:
.PP
.Vb 1
\& openssl spkac -in spkac.cnf -noout -verify
.Ve
Create an SPKAC using the challenge string \*(L"hello":
.PP
.Vb 1
\& openssl spkac -key key.pem -challenge hello -out spkac.cnf
.Ve
Example of an SPKAC, (long lines split up for clarity):
.PP
.Vb 5
\& SPKAC=MIG5MGUwXDANBgkqhkiG9w0BAQEFAANLADBIAkEA1cCoq2Wa3Ixs47uI7F\e
\& PVwHVIPDx5yso105Y6zpozam135a8R0CpoRvkkigIyXfcCjiVi5oWk+6FfPaD03u\e
\& PFoQIDAQABFgVoZWxsbzANBgkqhkiG9w0BAQQFAANBAFpQtY/FojdwkJh1bEIYuc\e
\& 2EeM2KHTWPEepWYeawvHD0gQ3DngSC75YCWnnDdq+NQ3F+X4deMx9AaEglZtULwV\e
\& 4=
.Ve
.SH "NOTES"
A created SPKAC with suitable DN components appended can be fed into
the \fBca\fR utility.
.PP
SPKACs are typically generated by Netscape when a form is submitted
containing the \fBKEYGEN\fR tag as part of the certificate enrollment
process.
.PP
The challenge string permits a primitive form of proof of possession
of private key. By checking the SPKAC signature and a random challenge
string some guarantee is given that the user knows the private key
corresponding to the public key being certified. This is important in
some applications. Without this it is possible for a previous SPKAC
to be used in a \*(L"replay attack\*(R".
.SH "SEE ALSO"
the \fIca(1)|ca(1)\fR manpage

.rn }` ''
.IX Title "SPKAC 1"
.IX Name "spkac - SPKAC printing and generating utility"

.IX Header "NAME"

.IX Header "SYNOPSIS"

.IX Header "DESCRIPTION"

.IX Header "COMMAND OPTIONS"

.IX Item "\fB\-in filename\fR"

.IX Item "\fB\-out filename\fR"

.IX Item "\fB\-key keyfile\fR"

.IX Item "\fB\-passin password\fR"

.IX Item "\fB\-challenge string\fR"

.IX Item "\fB\-spkac spkacname\fR"

.IX Item "\fB\-spksect section\fR"

.IX Item "\fB\-noout\fR"

.IX Item "\fB\-pubkey\fR"

.IX Item "\fB\-verify\fR"

.IX Header "EXAMPLES"

.IX Header "NOTES"

.IX Header "SEE ALSO"