标准号：ITU-T X.690-2015
中文名称：信息技术.抽象语法符号1编码规则:1规范的基本编码规则(BER),标准编码规则(CER)和区分编码规则(DER)研究组17
英文名称：Information technology �C ASN.1 encoding rules: Specification of Basic Encoding Rules (BER)@ Canonical Encoding Rules (CER) and Distinguished Encoding Rules (DER) (Study Group 17)
发布日期：2015-08-01
代替标准：ITU-T X.690-2008;ITU-T X.690 CORR 1-2011;ITU-T X.690 CORR 2-2014
采用标准：ISO/IEC 8825-1-2015,IDT;ISO/IEC DIS 8825-1-2015,IDT
标准简介：Recommendation ITU-T X.690 | ISO/IEC 8825-1 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. This Recommendation | International Standard 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.
文件格式：PDF
文件大小：844.71KB
文件页数：38
ITU-T X.690-2015 信息技术.抽象语法符号1编码规则_1规范的基本编码规则(BER),标准编码规则(CER)和区分编码规则(DER)研究组17.pdf
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