=head1 SYNOPSIS
B<openssl> B<asn1parse>
+[B<-help>]
[B<-inform PEM|DER>]
[B<-in filename>]
[B<-out filename>]
[B<-strparse offset>]
[B<-genstr string>]
[B<-genconf file>]
+[B<-strictpem>]
=head1 DESCRIPTION
=over 4
+=item B<-help>
+
+Print out a usage message.
+
=item B<-inform> B<DER|PEM>
the input format. B<DER> is binary format and B<PEM> (the default) is base64
=item B<-genstr string>, B<-genconf file>
generate encoded data based on B<string>, B<file> or both using
-L<ASN1_generate_nconf(3)|ASN1_generate_nconf(3)> format. If B<file> only is
+L<ASN1_generate_nconf(3)> 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.
+file using the B<out> option.
+
+=item B<-strictpem>
+
+If this option is used then B<-inform> will be ignored. Without this option any
+data in a PEM format input file will be treated as being base64 encoded and
+processed whether it has the normal PEM BEGIN and END markers or not. This
+option will ignore any data prior to the start of the BEGIN marker, or after an
+END marker in a PEM file.
=back
-=head2 OUTPUT
+=head2 Output
The output will typically contain lines like this:
- 0:d=0 hl=4 l= 681 cons: SEQUENCE
+ 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
+ 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
+ 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
+ 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
+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 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.
+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
+ 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
+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>
+C<1.2.3.4 shortName A long name>
=head1 EXAMPLES
=head1 SEE ALSO
-L<ASN1_generate_nconf(3)|ASN1_generate_nconf(3)>
+L<ASN1_generate_nconf(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
=cut
projects / cassiopeia.git / blobdiff