ASN.1

Abstract Syntax Notation One (ASN.1) is a standard interface description language (IDL) for defining data structures that can be serialized and deserialized in a cross-platform way. It is broadly used in telecommunications and computer networking, and especially in cryptography.

Key facts

Technology standard.title: ASN.1
Technology standard.long_name: Abstract Syntax Notation One
Technology standard.status: In force; supersedes X.208 and X.209 (1988)
Technology standard.year_started: 1984
Technology standard.version: (02/21)
Technology standard.version_date: February 2021
Technology standard.organization: ITU-T
Technology standard.committee: Study Group 17
Technology standard.base_standards: ASN.1
Technology standard.related_standards: X.208, X.209, X.409, X.509, X.680, X.681, X.682, X.683
Technology standard.domain: cryptography, telecommunications
Technology standard.website: https://www.itu.int/rec/T-REC-X.680/