- T.61
T.61 is an
ITU-T recommendation for aTeletex character set. T.61 predatedUnicode ,and was the primary character set in ASN.1 used in early versions ofX.500 andX.509 for encoding strings containing characters used in Western European languages. While T.61 continues to be supported in modern versions ofX.500 andX.509 , it has been deprecated in favor ofUnicode .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's
PKCS #9), the T.61 standard itself was withdrawn by the ITU-T and is [http://www.itu.int/rec/recommendation.asp?type=folders&parent=T-REC-T.61 no longer available] .
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