Standard

ISO/IEC 8825-1:2002

Withdrawn

Note: This standard has a new edition: ISO/IEC 8825-1:2021

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Abstract

ISO/IEC 8825-1:2002 defines a set of Basic Encoding Rules (BER) that may be applied to values of types defined using the ASN.1 notation. Application of these encoding rules produces a transfer syntax for such values. It is implicit in the specification of these encoding rules that they are also used for decoding. ISO/IEC 8825-1:2002 defines also a set of Distinguished Encoding Rules (DER) and a set of Canonical Encoding Rules (CER) both of which provide constraints on the Basic Encoding Rules (BER). The key difference between them is that DER uses the definite length form of encoding while CER uses the indefinite length form. DER is more suitable for the small encoded values, while CER is more suitable for the large ones. It is implicit in the specification of these encoding rules that they are also used for decoding.

Document information

  • Standard from ISO
  • Published:
  • Withdrawn:
  • Expires:
  • Edition: 3
  • Version: 1
  • Document type: IS
  • ICS 35.100.60
  • ISO TC ISO/IEC JTC 1/SC 6

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