This Recommendation | International Standard specifies a set of Basic Octet Encoding Rules (BASIC-OER) that may be used to derive a transfer syntax for values of the types defined in Rec. ITU-T X.680 | ISO/IEC 8824-1, Rec. ITU-T X.681 | ISO/IEC 8824-2, Rec. ITU-T X.682 | ISO/IEC 8824-3, Rec. ITU-T X.683 | ISO/IEC 8824-4. This Recommendation | International Standard also specifies a set of Canonical Octet Encoding Rules (CANONICAL-OER) which provides constraints on the Basic Octet Encoding Rules and produces a unique encoding for any given ASN.1 value. It is implicit in the specification of these encoding rules that they are also to be used for decoding.Cross References:ITU-T X.683:2015ITU-T X.690:2015ITU-T X.681:2015ITU-T X.691:2015ITU-T X.682:2015ITU-T X.680:2015ISO/IEC 8824-2:2015ISO/IEC 8825-1:2015ISO/IEC 8824-1:2015ISO/IEC 8824-4:2015ISO/IEC 2375:2003ISO/IEC 10646:2003 Ed 1ISO/IEC 8825-2:2015ISO/IEC 8824-3:2015NTCIP 1102:2004All current amendments available at time of purchase are included with the purchase of this document.