T.61 is an

ITU-T The ITU Telecommunication Standardization Sector (ITU-T) is one of the three sectors (divisions or units) of the International Telecommunication Union (ITU). It is responsible for coordinating standards for telecommunications and Information Comm ...

Recommendation for a

Teletex Teletex was ITU-T specification F.200 for a text and document communications service that could be provided over telephone lines. It was rapidly superseded by e-mail but the name ''Teletex'' lives on in several of the X.500 standard attributes u ...

character set. T.61 predated

Unicode Unicode, formally The Unicode Standard,The formal version reference is is an information technology standard for the consistent encoding, representation, and handling of text expressed in most of the world's writing systems. The standard, wh ...

, and was the primary character set in

ASN.1 Abstract Syntax Notation One (ASN.1) is a standard interface description language for defining data structures that can be serialized and deserialized in a cross-platform way. It is broadly used in telecommunications and computer networking, and ...

used in early versions of X.500 and

X.509 In cryptography, X.509 is an International Telecommunication Union (ITU) standard defining the format of public key certificates. X.509 certificates are used in many Internet protocols, including TLS/SSL, which is the basis for HTTPS, the secu ...

for encoding strings containing characters used in Western European languages. It is also used by older versions of

LDAP The Lightweight Directory Access Protocol (LDAP ) is an open, vendor-neutral, industry standard application protocol for accessing and maintaining distributed directory information services over an Internet Protocol (IP) network. Directory servi ...

. While T.61 continues to be supported in modern versions of X.500 and

, it has been deprecated in favor of

. It is also called Code page 1036, CP1036, or IBM 01036. While ASN.1 does see wide use and the T.61 character set is used on some standards using ASN.1 (for example in

RSA Security RSA Security LLC, formerly RSA Security, Inc. and doing business as RSA, is an American computer and network security company with a focus on encryption and encryption standards. RSA was named after the initials of its co-founders, Ron Rive ...

's PKCS #9), the 1988-11 version of the T.61 standard itself was superseded by a never-published 1993-03 version; the 1993-03 version was withdrawn by the ITU-T. The 1988-11 version is still available.

Code page layout

The following table maps the T.61 characters to their equivalent Unicode code points. See

ITU T.51 The International Telecommunication Union is a specialized agency of the United Nations responsible for many matters related to information and communication technologies. It was established on 17 May 1865 as the International Telegraph Union ...

for a description of how the accents at 0xC0..CF worked. They prefix the letters, as opposed to postfix used by Unicode.

Footnotes

References

External links

ITU-T Recommendation T.61
at ITU-T
ISO-IR-103
(

ISO-IR ISO/IEC 2022 ''Information technology—Character code structure and extension techniques'', is an ISO/ IEC standard (equivalent to the ECMA standard ECMA-35, the ANSI standard ANSI X3.41 and the Japanese Industrial Standard JIS X 0202) in the ...

registration of right-hand part) {{character encoding Character sets ASN.1 T.61 T.61

Code page layout

See also

Footnotes

References

External links