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Diffstat (limited to 'secure/lib/libcrypto/man/dhparam.1')
| -rw-r--r-- | secure/lib/libcrypto/man/dhparam.1 | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/secure/lib/libcrypto/man/dhparam.1 b/secure/lib/libcrypto/man/dhparam.1 new file mode 100644 index 0000000..0549a3d --- /dev/null +++ b/secure/lib/libcrypto/man/dhparam.1 @@ -0,0 +1,249 @@ +.\" Automatically generated by Pod::Man version 1.15 +.\" Thu May 9 13:14:11 2002 +.\" +.\" Standard preamble: +.\" ====================================================================== +.de Sh \" Subsection heading +.br +.if t .Sp +.ne 5 +.PP +\fB\\$1\fR +.PP +.. +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Ip \" List item +.br +.ie \\n(.$>=3 .ne \\$3 +.el .ne 3 +.IP "\\$1" \\$2 +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R + +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. | will give a +.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used +.\" to do unbreakable dashes and therefore won't be available. \*(C` and +.\" \*(C' expand to `' in nroff, nothing in troff, for use with C<> +.tr \(*W-|\(bv\*(Tr +.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' +.ie n \{\ +. ds -- \(*W- +. ds PI pi +. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch +. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch +. ds L" "" +. ds R" "" +. ds C` "" +. ds C' "" +'br\} +.el\{\ +. ds -- \|\(em\| +. ds PI \(*p +. ds L" `` +. ds R" '' +'br\} +.\" +.\" If the F register is turned on, we'll generate index entries on stderr +.\" for titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and +.\" index entries marked with X<> in POD. Of course, you'll have to process +.\" the output yourself in some meaningful fashion. +.if \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. nr % 0 +. rr F +.\} +.\" +.\" For nroff, turn off justification. Always turn off hyphenation; it +.\" makes way too many mistakes in technical documents. +.hy 0 +.if n .na +.\" +.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2). +.\" Fear. Run. Save yourself. 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The \fB\s-1DER\s0\fR option uses an \s-1ASN1\s0 \s-1DER\s0 encoded +form compatible with the PKCS#3 DHparameter structure. The \s-1PEM\s0 form is the +default format: it consists of the \fB\s-1DER\s0\fR format base64 encoded with +additional header and footer lines. +.Ip "\fB\-outform DER|PEM\fR" 4 +.IX Item "-outform DER|PEM" +This specifies the output format, the options have the same meaning as the +\&\fB\-inform\fR option. +.Ip "\fB\-in\fR \fIfilename\fR" 4 +.IX Item "-in filename" +This specifies the input filename to read parameters from or standard input if +this option is not specified. +.Ip "\fB\-out\fR \fIfilename\fR" 4 +.IX Item "-out filename" +This specifies the output filename parameters to. Standard output is used +if this option is not present. The output filename should \fBnot\fR be the same +as the input filename. +.Ip "\fB\-dsaparam\fR" 4 +.IX Item "-dsaparam" +If this option is used, \s-1DSA\s0 rather than \s-1DH\s0 parameters are read or created; +they are converted to \s-1DH\s0 format. Otherwise, \*(L"strong\*(R" primes (such +that (p-1)/2 is also prime) will be used for \s-1DH\s0 parameter generation. +.Sp +\&\s-1DH\s0 parameter generation with the \fB\-dsaparam\fR option is much faster, +and the recommended exponent length is shorter, which makes \s-1DH\s0 key +exchange more efficient. Beware that with such DSA-style \s-1DH\s0 +parameters, a fresh \s-1DH\s0 key should be created for each use to +avoid small-subgroup attacks that may be possible otherwise. +.Ip "\fB\-2\fR, \fB\-5\fR" 4 +.IX Item "-2, -5" +The generator to use, either 2 or 5. 2 is the default. If present then the +input file is ignored and parameters are generated instead. +.Ip "\fB\-rand\fR \fI\fIfile\fI\|(s)\fR" 4 +.IX Item "-rand file" +a file or files containing random data used to seed the random number +generator, or an \s-1EGD\s0 socket (see RAND_egd(3)). +Multiple files can be specified separated by a OS-dependent character. +The separator is \fB;\fR for MS-Windows, \fB,\fR for OpenVMS, and \fB:\fR for +all others. +.Ip "\fInumbits\fR" 4 +.IX Item "numbits" +this option specifies that a parameter set should be generated of size +\&\fInumbits\fR. It must be the last option. If not present then a value of 512 +is used. If this option is present then the input file is ignored and +parameters are generated instead. +.Ip "\fB\-noout\fR" 4 +.IX Item "-noout" +this option inhibits the output of the encoded version of the parameters. +.Ip "\fB\-text\fR" 4 +.IX Item "-text" +this option prints out the \s-1DH\s0 parameters in human readable form. +.Ip "\fB\-C\fR" 4 +.IX Item "-C" +this option converts the parameters into C code. The parameters can then +be loaded by calling the \fBget_dh\fR\fInumbits\fR\fB()\fR function. +.SH "WARNINGS" +.IX Header "WARNINGS" +The program \fBdhparam\fR combines the functionality of the programs \fBdh\fR and +\&\fBgendh\fR in previous versions of OpenSSL and SSLeay. The \fBdh\fR and \fBgendh\fR +programs are retained for now but may have different purposes in future +versions of OpenSSL. +.SH "NOTES" +.IX Header "NOTES" +\&\s-1PEM\s0 format \s-1DH\s0 parameters use the header and footer lines: +.PP +.Vb 2 +\& -----BEGIN DH PARAMETERS----- +\& -----END DH PARAMETERS----- +.Ve +OpenSSL currently only supports the older PKCS#3 \s-1DH\s0, not the newer X9.42 +\&\s-1DH\s0. +.PP +This program manipulates \s-1DH\s0 parameters not keys. +.SH "BUGS" +.IX Header "BUGS" +There should be a way to generate and manipulate \s-1DH\s0 keys. +.SH "SEE ALSO" +.IX Header "SEE ALSO" +dsaparam(1) +.SH "HISTORY" +.IX Header "HISTORY" +The \fBdhparam\fR command was added in OpenSSL 0.9.5. +The \fB\-dsaparam\fR option was added in OpenSSL 0.9.6. |
