ANSI ISO IEC 8825-1-1998 pdf download Information technology一ASN.1 encoding rules: Specification of Basic Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules (DER) AMENDMENT 1: Relative object identifiers
1 Scope
This Recommendation| Intermational Standard specifies a set of basic encoding rules that may be used to derive the specification of a transfer syntax for values of types defined using the notation specified in ITU-T Rec. X.680 ISO/IEC 8824-1, ITU-T Rec. X.681 | ISO/IEC 8824-2, ITU-T Rec. X.682 | ISO/IEC 8824-3, and ITU-T Rec. X.683| ISO/IEC 8824-4, collectively referred to as Abstract Syntax Notation One or ASN.1. These basic encoding rules are also to be applied for decoding such a transfer syntax in order to identify the data values being transferred. It also specifies a set of canonical and distinguished encoding rules that restrict the encoding of values to just one of the altermatives provided by the basic encoding rules. These encoding rules are used at the time of communication (by the presentation service provider when required by a presentation context).
2 Normative references
The following Recommendations and International Standards contain provisions which, through reference in this text, constitute provisions of this Recommendation | Intermational Standard. At the time of publication, the editions indicated were valid. All Recommendations and Standards are subject to revision, and parties to agreements based on this Recommendation| International Standard are encouraged to investigate the possibility of applying the most recent edition of the Recommendations and Standards listed below. Members of IEC and ISO maintain registers of currently valid International Standards. The Telecommunication Standardization Bureau of the ITU maintains a list of currently valid ITU-T Recommendations.
2.1
Identical Recommendations | International Standards
– ITU-T Recommendation X.200 (1994)| ISO/IEC 7498- 1:1994, Information technology – Open Systems Interconnection – Basic Reference Model: The Basic Model.
– ITU-T Recommendation X.226 (1994) | ISO/IEC 8823-1:1994, Information technology – Open Systems Interconmection – Comnection-oriented presentation protocol: Protocol specification.
– ITU-T Recommendation X.509 (1997) | ISO/IEC 9594-81), Information technology – Open Systems Interconnection – The Directory: Authentication framework.
– ITU-T Recommendation X.680 (1997) | ISO/IEC 8824-1:1998, Information techmology – Abstract Syntax Notation One (ASN. I): Specification of basic notation.
– ITU-T Recommendation X.681 (1997)| ISO/IEC 8824-2:1998, Information technology – Abstract Syntax Notation One (ASN. I): Information object specification.
– ITU-T Recommendation X.682 (1997) | ISO/IEC 8824-3:1998, Information technology – Abstract Syntax Notation One (ASN. I): Constraint specification.
– ITU-T Recommendation X.683 (1997)| ISO/IEC 8824-4:1998, Information technology – Abstract Syntax Notation One (ASN, I): Parameterization of ASN.I specifications.