Encoding Control Notation (original) (raw)

The Encoding Control Notation (ECN) is a standardized formal language that is part of the Abstract Syntax Notation One (ASN.1) family of international standards. ECN is designed to be used along with ASN.1, and each ECN specification (a coherent set of encoding definitions) is explicitly related to a particular ASN.1 specification (a coherent set of type definitions). The ECN standard is published by both the ITU-T and the ISO, and is officially named ITU-T Recommendation X.692 | ISO/IEC 8825-3, Information technology – ASN.1 encoding rules: Specification of Encoding Control Notation (ECN).