PrintableString
A PrintableString is a restricted character string type in the ASN.1 notation. It is used to describe data that does only consist of a specific printable subset of the ASCII character set.
According to the ASN.1 Specification of basic notation,[1] the character set of PrintableString can be expressed as:
| Name | Graphic |
|---|---|
| Latin capital letters | A,B, ... Z |
| Latin small letters | a,b, ... z |
| Numbers | 0,1, ... 9 |
| SPACE | (space) |
| APOSTROPHE | ' |
| LEFT PARENTHESIS | ( |
| RIGHT PARENTHESIS | ) |
| PLUS SIGN | + |
| COMMA | , |
| HYPHEN-MINUS | - |
| FULL STOP | . |
| SOLIDUS | / |
| COLON | : |
| EQUALS SIGN | = |
| QUESTION MARK | ? |
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.
See also
References
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