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OPENSSL-NAMEDISPLAY-OPTIONS(1ossl) OpenSSL OPENSSL-NAMEDISPLAY-OPTIONS(1ossl)
NAME
openssl-namedisplay-options - Distinguished name display options
SYNOPSIS
openssl command [ options ... ] [ parameters ... ]
DESCRIPTION
OpenSSL provides fine-grain control over how the subject and issuer
DN's are displayed. This is specified by using the -nameopt option,
which takes a comma-separated list of options from the following set.
An option may be preceded by a minus sign, "-", to turn it off. The
default value is "oneline". The first four are the most commonly used.
OPTIONS
Name Format Option Arguments
The DN output format can be fine tuned with the following flags.
compat
Display the name using an old format from previous OpenSSL
versions.
RFC2253
Display the name using the format defined in RFC 2253. It is
equivalent to esc_2253, esc_ctrl, esc_msb, utf8, dump_nostr,
dump_unknown, dump_der, sep_comma_plus, dn_rev and sname.
oneline
Display the name in one line, using a format that is more readable
RFC 2253. It is equivalent to esc_2253, esc_ctrl, esc_msb, utf8,
dump_nostr, dump_der, use_quote, sep_comma_plus_space, space_eq and
sname options.
multiline
Display the name using multiple lines. It is equivalent to
esc_ctrl, esc_msb, sep_multiline, space_eq, lname and align.
esc_2253
Escape the "special" characters in a field, as required by RFC
2253. That is, any of the characters ",+"<>;", "#" at the
beginning of a string and leading or trailing spaces.
esc_2254
Escape the "special" characters in a field as required by RFC 2254
in a field. That is, the NUL character and of "()*".
esc_ctrl
Escape non-printable ASCII characters, codes less than 0x20 (space)
or greater than 0x7F (DELETE). They are displayed using RFC 2253
"\XX" notation where XX are the two hex digits representing the
character value.
esc_msb
Escape any characters with the most significant bit set, that is
with values larger than 127, as described in esc_ctrl.
use_quote
Escapes some characters by surrounding the entire string with
quotation marks, """. Without this option, individual special
characters are preceded with a backslash character, "\".
utf8
Convert all strings to UTF-8 format first as required by RFC 2253.
If the output device is UTF-8 compatible, then using this option
(and not setting esc_msb) may give the correct display of multibyte
characters. If this option is not set, then multibyte characters
larger than 0xFF will be output as "\UXXXX" for 16 bits or
"\WXXXXXXXX" for 32 bits. In addition, any UTF8Strings will be
converted to their character form first.
ignore_type
This option does not attempt to interpret multibyte characters in
any way. That is, the content octets are merely dumped as though
one octet represents each character. This is useful for diagnostic
purposes but will result in rather odd looking output.
show_type
Display the type of the ASN1 character string before the value,
such as "BMPSTRING: Hello World".
dump_der
Any fields that would be output in hex format are displayed using
the DER encoding of the field. If not set, just the content octets
are displayed. Either way, the #XXXX... format of RFC 2253 is
used.
dump_nostr
Dump non-character strings, such as ASN.1 OCTET STRING. If this
option is not set, then non character string types will be
displayed as though each content octet represents a single
character.
dump_all
Dump all fields. When this used with dump_der, this allows the DER
encoding of the structure to be unambiguously determined.
dump_unknown
Dump any field whose OID is not recognised by OpenSSL.
sep_comma_plus, sep_comma_plus_space, sep_semi_plus_space,
sep_multiline
Specify the field separators. The first word is used between the
Relative Distinguished Names (RDNs) and the second is between
multiple Attribute Value Assertions (AVAs). Multiple AVAs are very
rare and their use is discouraged. The options ending in "space"
additionally place a space after the separator to make it more
readable. The sep_multiline starts each field on its own line, and
uses "plus space" for the AVA separator. It also indents the
fields by four characters. The default value is
sep_comma_plus_space.
dn_rev
Reverse the fields of the DN as required by RFC 2253. This also
reverses the order of multiple AVAs in a field, but this is
permissible as there is no ordering on values.
nofname, sname, lname, oid
Specify how the field name is displayed. nofname does not display
the field at all. sname uses the "short name" form (CN for
commonName for example). lname uses the long form. oid represents
the OID in numerical form and is useful for diagnostic purpose.
align
Align field values for a more readable output. Only usable with
sep_multiline.
space_eq
Places spaces round the equal sign, "=", character which follows
the field name.
COPYRIGHT
Copyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (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
<https://www.openssl.org/source/license.html>.
3.0.14 2024-06-04OPENSSL-NAMEDISPLAY-OPTIONS(1ossl)
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