What are ASN.1 Octet Encoding Rules (OER)?

Octet Encoding Rules are specified by the Rec. ITU-T X.696 | ISO/IEC 8825-7 Octet Encoding Rules (OER) Base Protocol document. The main advantage of OER messages is that they can be encoded/decoded significantly faster than BER and PER messages, while being only slightly less compact than PER messages. Take a look at an Overview of OER.

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