aboutsummaryrefslogtreecommitdiff
path: root/openssl/doc/apps/asn1parse.pod
diff options
context:
space:
mode:
authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /openssl/doc/apps/asn1parse.pod
downloadvcxsrv-3562e78743202e43aec8727005182a2558117eca.tar.gz
vcxsrv-3562e78743202e43aec8727005182a2558117eca.tar.bz2
vcxsrv-3562e78743202e43aec8727005182a2558117eca.zip
Checked in the following released items:
xkeyboard-config-1.4.tar.gz ttf-bitstream-vera-1.10.tar.gz font-alias-1.0.1.tar.gz font-sun-misc-1.0.0.tar.gz font-sun-misc-1.0.0.tar.gz font-sony-misc-1.0.0.tar.gz font-schumacher-misc-1.0.0.tar.gz font-mutt-misc-1.0.0.tar.gz font-misc-misc-1.0.0.tar.gz font-misc-meltho-1.0.0.tar.gz font-micro-misc-1.0.0.tar.gz font-jis-misc-1.0.0.tar.gz font-isas-misc-1.0.0.tar.gz font-dec-misc-1.0.0.tar.gz font-daewoo-misc-1.0.0.tar.gz font-cursor-misc-1.0.0.tar.gz font-arabic-misc-1.0.0.tar.gz font-winitzki-cyrillic-1.0.0.tar.gz font-misc-cyrillic-1.0.0.tar.gz font-cronyx-cyrillic-1.0.0.tar.gz font-screen-cyrillic-1.0.1.tar.gz font-xfree86-type1-1.0.1.tar.gz font-adobe-utopia-type1-1.0.1.tar.gz font-ibm-type1-1.0.0.tar.gz font-bitstream-type1-1.0.0.tar.gz font-bitstream-speedo-1.0.0.tar.gz font-bh-ttf-1.0.0.tar.gz font-bh-type1-1.0.0.tar.gz font-bitstream-100dpi-1.0.0.tar.gz font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz font-bh-100dpi-1.0.0.tar.gz font-adobe-utopia-100dpi-1.0.1.tar.gz font-adobe-100dpi-1.0.0.tar.gz font-util-1.0.1.tar.gz font-bitstream-75dpi-1.0.0.tar.gz font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz font-adobe-utopia-75dpi-1.0.1.tar.gz font-bh-75dpi-1.0.0.tar.gz bdftopcf-1.0.1.tar.gz font-adobe-75dpi-1.0.0.tar.gz mkfontscale-1.0.6.tar.gz openssl-0.9.8k.tar.gz bigreqsproto-1.0.2.tar.gz xtrans-1.2.2.tar.gz resourceproto-1.0.2.tar.gz inputproto-1.4.4.tar.gz compositeproto-0.4.tar.gz damageproto-1.1.0.tar.gz zlib-1.2.3.tar.gz xkbcomp-1.0.5.tar.gz freetype-2.3.9.tar.gz pthreads-w32-2-8-0-release.tar.gz pixman-0.12.0.tar.gz kbproto-1.0.3.tar.gz evieext-1.0.2.tar.gz fixesproto-4.0.tar.gz recordproto-1.13.2.tar.gz randrproto-1.2.2.tar.gz scrnsaverproto-1.1.0.tar.gz renderproto-0.9.3.tar.gz xcmiscproto-1.1.2.tar.gz fontsproto-2.0.2.tar.gz xextproto-7.0.3.tar.gz xproto-7.0.14.tar.gz libXdmcp-1.0.2.tar.gz libxkbfile-1.0.5.tar.gz libfontenc-1.0.4.tar.gz libXfont-1.3.4.tar.gz libX11-1.1.5.tar.gz libXau-1.0.4.tar.gz libxcb-1.1.tar.gz xorg-server-1.5.3.tar.gz
Diffstat (limited to 'openssl/doc/apps/asn1parse.pod')
-rw-r--r--openssl/doc/apps/asn1parse.pod171
1 files changed, 171 insertions, 0 deletions
diff --git a/openssl/doc/apps/asn1parse.pod b/openssl/doc/apps/asn1parse.pod
new file mode 100644
index 000000000..542d96906
--- /dev/null
+++ b/openssl/doc/apps/asn1parse.pod
@@ -0,0 +1,171 @@
+=pod
+
+=head1 NAME
+
+asn1parse - ASN.1 parsing tool
+
+=head1 SYNOPSIS
+
+B<openssl> B<asn1parse>
+[B<-inform PEM|DER>]
+[B<-in filename>]
+[B<-out filename>]
+[B<-noout>]
+[B<-offset number>]
+[B<-length number>]
+[B<-i>]
+[B<-oid filename>]
+[B<-strparse offset>]
+[B<-genstr string>]
+[B<-genconf file>]
+
+=head1 DESCRIPTION
+
+The B<asn1parse> command is a diagnostic utility that can parse ASN.1
+structures. It can also be used to extract data from ASN.1 formatted data.
+
+=head1 OPTIONS
+
+=over 4
+
+=item B<-inform> B<DER|PEM>
+
+the input format. B<DER> is binary format and B<PEM> (the default) is base64
+encoded.
+
+=item B<-in filename>
+
+the input file, default is standard input
+
+=item B<-out filename>
+
+output file to place the DER encoded data into. If this
+option is not present then no data will be output. This is most useful when
+combined with the B<-strparse> option.
+
+=item B<-noout>
+
+don't output the parsed version of the input file.
+
+=item B<-offset number>
+
+starting offset to begin parsing, default is start of file.
+
+=item B<-length number>
+
+number of bytes to parse, default is until end of file.
+
+=item B<-i>
+
+indents the output according to the "depth" of the structures.
+
+=item B<-oid filename>
+
+a file containing additional OBJECT IDENTIFIERs (OIDs). The format of this
+file is described in the NOTES section below.
+
+=item B<-strparse offset>
+
+parse the contents octets of the ASN.1 object starting at B<offset>. This
+option can be used multiple times to "drill down" into a nested structure.
+
+=item B<-genstr string>, B<-genconf file>
+
+generate encoded data based on B<string>, B<file> or both using
+ASN1_generate_nconf() format. If B<file> only is present then the string
+is obtained from the default section using the name B<asn1>. The encoded
+data is passed through the ASN1 parser and printed out as though it came
+from a file, the contents can thus be examined and written to a file
+using the B<out> option.
+
+=back
+
+=head2 OUTPUT
+
+The output will typically contain lines like this:
+
+ 0:d=0 hl=4 l= 681 cons: SEQUENCE
+
+.....
+
+ 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
+
+.....
+
+This example is part of a self signed certificate. Each line starts with the
+offset in decimal. B<d=XX> specifies the current depth. The depth is increased
+within the scope of any SET or SEQUENCE. B<hl=XX> gives the header length
+(tag and length octets) of the current type. B<l=XX> gives the length of
+the contents octets.
+
+The B<-i> option can be used to make the output more readable.
+
+Some knowledge of the ASN.1 structure is needed to interpret the output.
+
+In this example the BIT STRING 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 B<-strparse 229> to yield:
+
+ 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
+
+=head1 NOTES
+
+If an OID 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 B<-oid> option
+allows additional OIDs to be included. Each line consists of three columns,
+the first column is the OID in numerical format and should be followed by white
+space. The second column is the "short name" which is a single word followed
+by white space. The final column is the rest of the line and is the
+"long name". B<asn1parse> displays the long name. Example:
+
+C<1.2.3.4 shortName A long name>
+
+=head1 EXAMPLES
+
+Parse a file:
+
+ openssl asn1parse -in file.pem
+
+Parse a DER file:
+
+ openssl asn1parse -inform DER -in file.der
+
+Generate a simple UTF8String:
+
+ openssl asn1parse -genstr 'UTF8:Hello World'
+
+Generate and write out a UTF8String, don't print parsed output:
+
+ openssl asn1parse -genstr 'UTF8:Hello World' -noout -out utf8.der
+
+Generate using a config file:
+
+ openssl asn1parse -genconf asn1.cnf -noout -out asn1.der
+
+Example config file:
+
+ asn1=SEQUENCE:seq_sect
+
+ [seq_sect]
+
+ field1=BOOL:TRUE
+ field2=EXP:0, UTF8:some random string
+
+
+=head1 BUGS
+
+There should be options to change the format of output lines. The output of some
+ASN.1 types is not well handled (if at all).
+
+=cut