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ITU-T Study Group 17 - ASN.1 Schema for XML Markup
ITU-T Q.12/17 has extended the ASN.1 (Abstract Syntax Notation One) schema notation to provide full support for XML. This helps to ensure that the needs of resource constrained devices such as wireless devices (Cell phones, PDAs and RFIDs), smart cards, and high volume transaction systems can enjoy the benefits of compact, efficient and reliable binary encodings of information that also has an XML representation. The XML Encoding Rules (XER) of ASN.1 values is defined in ITU-T Recommendation (X.693) and ISO/IEC 8825-4. For more information see and

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