ITU-T-X-SERIES

ITU-T X-series data networks ~400 specs.

Définition

ITU-T X-series organisation : X.1-X.199 (Public Data Networks PDN), X.200-X.299 (Open Systems Interconnection OSI), X.300-X.399 (Interworking between networks), X.400-X.499 (Message Handling Systems MHS), X.500-X.599 (Directory Services), X.600-X.699 (OSI networking and system aspects), X.700-X.799 (OSI management), X.800-X.849 (Security), X.850-X.899 (OSI applications), X.1000+ (Information and network security). Recommandation cle : X.509 (Public Key Infrastructure certificats, used par TLS/SSL global). Recommandation cle : X.690 (DER ASN.1 encoding rules).

Origine

ITU-T (anciennement CCITT) fonde 1865 ; X-series introduites annees 1970s ; X.25 publie 1976 ; X.500 publie 1988 ; X.509 publie 1988 (multiple revisions, current 9th edition 2019).

Exemple en contexte

Toutes les connexions HTTPS sur Internet utilisent X.509 certificats publies par CAs (Lets Encrypt, DigiCert, Sectigo) ; format DER ASN.1 conforme X.690 encoding rules.

Termes liés

• ITU-T Q-series — autre famille standards.