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Diffstat (limited to 'openssl/trunk/doc/apps/asn1parse.pod')
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diff --git a/openssl/trunk/doc/apps/asn1parse.pod b/openssl/trunk/doc/apps/asn1parse.pod deleted file mode 100644 index 542d9690..00000000 --- a/openssl/trunk/doc/apps/asn1parse.pod +++ /dev/null @@ -1,171 +0,0 @@ -=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 |