imported>Sebastianleroy: #suggestededit-add 1.0

2022-01-07T10:20:51Z

#suggestededit-add 1.0

New page

{{Short description|Restricted character string type}}
A '''PrintableString''' is a restricted character [[String (computer science)|string type]] in the [[Abstract Syntax Notation One|ASN.1 notation]].
It is used to describe data that consists only of a specific printable [[subset]] of the [[ASCII]] character set.

According to the ASN.1 Specification of basic notation,<ref name="X.680">[http://www.itu.int/rec/T-REC-X.680-200811-I/en Information technology – Abstract Syntax Notation One (ASN.1): Specification of basic notation], ITU-T X.680, 07/2002</ref> the character set of PrintableString can be expressed as:

{| class="wikitable" style="text-align: center"
|-
! Name !! Graphic !! ASCII Code (DEC) !! ASCII Code (HEX)
|-
| Latin capital letters || <code>A,B, ... Z</code>
|65 - 90
|41 - 5A
|-
| Latin small letters || <code>a,b, ... z</code>
|97 - 122
|61 - 7A
|-
| Numbers || <code>0,1, ... 9</code>
|48 - 57
|30 - 39
|-
| SPACE || (space)
|32
|20
|-
| APOSTROPHE || <code>'</code>
|39
|27
|-
| LEFT PARENTHESIS || <code>(</code>
|40
|28
|-
| RIGHT PARENTHESIS || <code>)</code>
|41
|29
|-
| PLUS SIGN || <code>+</code>
|43
|2B
|-
| COMMA || <code>,</code>
|44
|2C
|-
| HYPHEN-MINUS || <code>-</code>
|45
|2D
|-
| FULL STOP || <code>.</code>
|46
|2E
|-
| SOLIDUS || <code>/</code>
|47
|2F
|-
| COLON || <code>:</code>
|58
|3A
|-
| EQUALS SIGN || <code>=</code>
|61
|3D
|-
| QUESTION MARK || <code>?</code>
|63
|3F
|-
|}

The PrintableString definition does not include the [[at sign]] (@) or [[ampersand]] (&).
This sometimes causes problems for naive implementers who attempt to put an [[SMTP]] [[email address]] into an [[X.509]] [[digital certificate]] [[Distinguished Name]].

The PrintableString definition does not include [[asterisk]] (*) which means it must not be used to represent a wildcard in an [[X.509]] [[digital certificate]] [[Distinguished Name]].

== See also ==
* [[X.690|The X.690 encoding standard for ASN.1]]
* [[IA5String]]

== References ==
<references />

{{DEFAULTSORT:Printablestring}}
[[Category:Character sets]]

PrintableString - Revision history

imported>Sebastianleroy: #suggestededit-add 1.0