252 lines
8.2 KiB
Groff
252 lines
8.2 KiB
Groff
.\" Automatically generated by Pod::Man version 1.15
|
|
.\" Wed Feb 19 16:49:31 2003
|
|
.\"
|
|
.\" 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. No user-serviceable parts.
|
|
.bd B 3
|
|
. \" fudge factors for nroff and troff
|
|
.if n \{\
|
|
. ds #H 0
|
|
. ds #V .8m
|
|
. ds #F .3m
|
|
. ds #[ \f1
|
|
. ds #] \fP
|
|
.\}
|
|
.if t \{\
|
|
. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
|
|
. ds #V .6m
|
|
. ds #F 0
|
|
. ds #[ \&
|
|
. ds #] \&
|
|
.\}
|
|
. \" simple accents for nroff and troff
|
|
.if n \{\
|
|
. ds ' \&
|
|
. ds ` \&
|
|
. ds ^ \&
|
|
. ds , \&
|
|
. ds ~ ~
|
|
. ds /
|
|
.\}
|
|
.if t \{\
|
|
. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
|
|
. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
|
|
. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
|
|
. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
|
|
. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
|
|
. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
|
|
.\}
|
|
. \" troff and (daisy-wheel) nroff accents
|
|
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
|
|
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
|
|
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
|
|
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
|
|
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
|
|
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
|
|
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
|
|
.ds ae a\h'-(\w'a'u*4/10)'e
|
|
.ds Ae A\h'-(\w'A'u*4/10)'E
|
|
. \" corrections for vroff
|
|
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
|
|
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
|
|
. \" for low resolution devices (crt and lpr)
|
|
.if \n(.H>23 .if \n(.V>19 \
|
|
\{\
|
|
. ds : e
|
|
. ds 8 ss
|
|
. ds o a
|
|
. ds d- d\h'-1'\(ga
|
|
. ds D- D\h'-1'\(hy
|
|
. ds th \o'bp'
|
|
. ds Th \o'LP'
|
|
. ds ae ae
|
|
. ds Ae AE
|
|
.\}
|
|
.rm #[ #] #H #V #F C
|
|
.\" ======================================================================
|
|
.\"
|
|
.IX Title "ASN1PARSE 1"
|
|
.TH ASN1PARSE 1 "0.9.7a" "2003-02-19" "OpenSSL"
|
|
.UC
|
|
.SH "NAME"
|
|
asn1parse \- \s-1ASN\s0.1 parsing tool
|
|
.SH "SYNOPSIS"
|
|
.IX Header "SYNOPSIS"
|
|
\&\fBopenssl\fR \fBasn1parse\fR
|
|
[\fB\-inform PEM|DER\fR]
|
|
[\fB\-in filename\fR]
|
|
[\fB\-out filename\fR]
|
|
[\fB\-noout\fR]
|
|
[\fB\-offset number\fR]
|
|
[\fB\-length number\fR]
|
|
[\fB\-i\fR]
|
|
[\fB\-oid filename\fR]
|
|
[\fB\-strparse offset\fR]
|
|
.SH "DESCRIPTION"
|
|
.IX Header "DESCRIPTION"
|
|
The \fBasn1parse\fR command is a diagnostic utility that can parse \s-1ASN\s0.1
|
|
structures. It can also be used to extract data from \s-1ASN\s0.1 formatted data.
|
|
.SH "OPTIONS"
|
|
.IX Header "OPTIONS"
|
|
.Ip "\fB\-inform\fR \fBDER|PEM\fR" 4
|
|
.IX Item "-inform DER|PEM"
|
|
the input format. \fB\s-1DER\s0\fR is binary format and \fB\s-1PEM\s0\fR (the default) is base64
|
|
encoded.
|
|
.Ip "\fB\-in filename\fR" 4
|
|
.IX Item "-in filename"
|
|
the input file, default is standard input
|
|
.Ip "\fB\-out filename\fR" 4
|
|
.IX Item "-out filename"
|
|
output file to place the \s-1DER\s0 encoded data into. If this
|
|
option is not present then no data will be output. This is most useful when
|
|
combined with the \fB\-strparse\fR option.
|
|
.Ip "\fB\-noout\fR" 4
|
|
.IX Item "-noout"
|
|
don't output the parsed version of the input file.
|
|
.Ip "\fB\-offset number\fR" 4
|
|
.IX Item "-offset number"
|
|
starting offset to begin parsing, default is start of file.
|
|
.Ip "\fB\-length number\fR" 4
|
|
.IX Item "-length number"
|
|
number of bytes to parse, default is until end of file.
|
|
.Ip "\fB\-i\fR" 4
|
|
.IX Item "-i"
|
|
indents the output according to the \*(L"depth\*(R" of the structures.
|
|
.Ip "\fB\-oid filename\fR" 4
|
|
.IX Item "-oid filename"
|
|
a file containing additional \s-1OBJECT\s0 IDENTIFIERs (OIDs). The format of this
|
|
file is described in the \s-1NOTES\s0 section below.
|
|
.Ip "\fB\-strparse offset\fR" 4
|
|
.IX Item "-strparse offset"
|
|
parse the contents octets of the \s-1ASN\s0.1 object starting at \fBoffset\fR. This
|
|
option can be used multiple times to \*(L"drill down\*(R" into a nested structure.
|
|
.Sh "\s-1OUTPUT\s0"
|
|
.IX Subsection "OUTPUT"
|
|
The output will typically contain lines like this:
|
|
.PP
|
|
.Vb 1
|
|
\& 0:d=0 hl=4 l= 681 cons: SEQUENCE
|
|
.Ve
|
|
\&.....
|
|
.PP
|
|
.Vb 10
|
|
\& 229:d=3 hl=3 l= 141 prim: BIT STRING
|
|
\& 373:d=2 hl=3 l= 162 cons: cont [ 3 ]
|
|
\& 376:d=3 hl=3 l= 159 cons: SEQUENCE
|
|
\& 379:d=4 hl=2 l= 29 cons: SEQUENCE
|
|
\& 381:d=5 hl=2 l= 3 prim: OBJECT :X509v3 Subject Key Identifier
|
|
\& 386:d=5 hl=2 l= 22 prim: OCTET STRING
|
|
\& 410:d=4 hl=2 l= 112 cons: SEQUENCE
|
|
\& 412:d=5 hl=2 l= 3 prim: OBJECT :X509v3 Authority Key Identifier
|
|
\& 417:d=5 hl=2 l= 105 prim: OCTET STRING
|
|
\& 524:d=4 hl=2 l= 12 cons: SEQUENCE
|
|
.Ve
|
|
\&.....
|
|
.PP
|
|
This example is part of a self signed certificate. Each line starts with the
|
|
offset in decimal. \fBd=XX\fR specifies the current depth. The depth is increased
|
|
within the scope of any \s-1SET\s0 or \s-1SEQUENCE\s0. \fBhl=XX\fR gives the header length
|
|
(tag and length octets) of the current type. \fBl=XX\fR gives the length of
|
|
the contents octets.
|
|
.PP
|
|
The \fB\-i\fR option can be used to make the output more readable.
|
|
.PP
|
|
Some knowledge of the \s-1ASN\s0.1 structure is needed to interpret the output.
|
|
.PP
|
|
In this example the \s-1BIT\s0 \s-1STRING\s0 at offset 229 is the certificate public key.
|
|
The contents octets of this will contain the public key information. This can
|
|
be examined using the option \fB\-strparse 229\fR to yield:
|
|
.PP
|
|
.Vb 3
|
|
\& 0:d=0 hl=3 l= 137 cons: SEQUENCE
|
|
\& 3:d=1 hl=3 l= 129 prim: INTEGER :E5D21E1F5C8D208EA7A2166C7FAF9F6BDF2059669C60876DDB70840F1A5AAFA59699FE471F379F1DD6A487E7D5409AB6A88D4A9746E24B91D8CF55DB3521015460C8EDE44EE8A4189F7A7BE77D6CD3A9AF2696F486855CF58BF0EDF2B4068058C7A947F52548DDF7E15E96B385F86422BEA9064A3EE9E1158A56E4A6F47E5897
|
|
\& 135:d=1 hl=2 l= 3 prim: INTEGER :010001
|
|
.Ve
|
|
.SH "NOTES"
|
|
.IX Header "NOTES"
|
|
If an \s-1OID\s0 is not part of OpenSSL's internal table it will be represented in
|
|
numerical form (for example 1.2.3.4). The file passed to the \fB\-oid\fR option
|
|
allows additional OIDs to be included. Each line consists of three columns,
|
|
the first column is the \s-1OID\s0 in numerical format and should be followed by white
|
|
space. The second column is the \*(L"short name\*(R" which is a single word followed
|
|
by white space. The final column is the rest of the line and is the
|
|
\&\*(L"long name\*(R". \fBasn1parse\fR displays the long name. Example:
|
|
.PP
|
|
\&\f(CW\*(C`1.2.3.4 shortName A long name\*(C'\fR
|
|
.SH "BUGS"
|
|
.IX Header "BUGS"
|
|
There should be options to change the format of input lines. The output of some
|
|
\&\s-1ASN\s0.1 types is not well handled (if at all).
|