227 lines
6.9 KiB
Groff
227 lines
6.9 KiB
Groff
.\" $NetBSD: openssl_dsaparam.1,v 1.5 2002/06/09 16:13:07 itojun Exp $
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.\" ======================================================================
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.\"
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.IX Title "DSAPARAM 1"
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.TH DSAPARAM 1 "0.9.6d" "2001-04-12" "OpenSSL"
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.UC
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.SH "NAME"
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dsaparam \- \s-1DSA\s0 parameter manipulation and generation
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.SH "LIBRARY"
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libcrypto, -lcrypto
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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\&\fBopenssl dsaparam\fR
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[\fB\-inform DER|PEM\fR]
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[\fB\-outform DER|PEM\fR]
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[\fB\-in filename\fR]
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[\fB\-out filename\fR]
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[\fB\-noout\fR]
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[\fB\-text\fR]
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[\fB\-C\fR]
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[\fB\-rand \f(BIfile\fB\|(s)\fR]
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[\fB\-genkey\fR]
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[\fBnumbits\fR]
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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This command is used to manipulate or generate \s-1DSA\s0 parameter files.
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.SH "OPTIONS"
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.IX Header "OPTIONS"
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.Ip "\fB\-inform DER|PEM\fR" 4
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.IX Item "-inform DER|PEM"
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This specifies the input format. The \fB\s-1DER\s0\fR option uses an \s-1ASN1\s0 \s-1DER\s0 encoded
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form compatible with \s-1RFC2459\s0 (\s-1PKIX\s0) DSS-Parms that is a \s-1SEQUENCE\s0 consisting
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of p, q and g respectively. The \s-1PEM\s0 form is the default format: it consists
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of the \fB\s-1DER\s0\fR format base64 encoded with additional header and footer lines.
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.Ip "\fB\-outform DER|PEM\fR" 4
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.IX Item "-outform DER|PEM"
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This specifies the output format, the options have the same meaning as the
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\&\fB\-inform\fR option.
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.Ip "\fB\-in filename\fR" 4
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.IX Item "-in filename"
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This specifies the input filename to read parameters from or standard input if
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this option is not specified. If the \fBnumbits\fR parameter is included then
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this option will be ignored.
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.Ip "\fB\-out filename\fR" 4
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.IX Item "-out filename"
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This specifies the output filename parameters to. Standard output is used
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if this option is not present. The output filename should \fBnot\fR be the same
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as the input filename.
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.Ip "\fB\-noout\fR" 4
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.IX Item "-noout"
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this option inhibits the output of the encoded version of the parameters.
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.Ip "\fB\-text\fR" 4
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.IX Item "-text"
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this option prints out the \s-1DSA\s0 parameters in human readable form.
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.Ip "\fB\-C\fR" 4
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.IX Item "-C"
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this option converts the parameters into C code. The parameters can then
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be loaded by calling the \fB\f(BIget_dsaXXX()\fB\fR function.
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.Ip "\fB\-genkey\fR" 4
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.IX Item "-genkey"
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this option will generate a \s-1DSA\s0 either using the specified or generated
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parameters.
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.Ip "\fB\-rand \f(BIfile\fB\|(s)\fR" 4
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.IX Item "-rand file"
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a file or files containing random data used to seed the random number
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generator, or an \s-1EGD\s0 socket (see RAND_egd(3)).
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Multiple files can be specified separated by a OS-dependent character.
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The separator is \fB;\fR for MS-Windows, \fB,\fR for OpenVMS, and \fB:\fR for
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all others.
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.Ip "\fBnumbits\fR" 4
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.IX Item "numbits"
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this option specifies that a parameter set should be generated of size
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\&\fBnumbits\fR. It must be the last option. If this option is included then
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the input file (if any) is ignored.
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.SH "NOTES"
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.IX Header "NOTES"
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\&\s-1PEM\s0 format \s-1DSA\s0 parameters use the header and footer lines:
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.PP
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.Vb 2
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\& -----BEGIN DSA PARAMETERS-----
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\& -----END DSA PARAMETERS-----
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.Ve
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\&\s-1DSA\s0 parameter generation is a slow process and as a result the same set of
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\&\s-1DSA\s0 parameters is often used to generate several distinct keys.
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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openssl_gendsa(1), openssl_dsa(1), openssl_genrsa(1),
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openssl_rsa(1)
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