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ITU-T X.690 (11/2008)

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信息技术 – ASN.1编码规则:基本编码规则(BER)、规范编码规则(CER)和唯一编码规则(DER)
本建议书 | 国际标准定义了一组基本编码规则(BER),可用于利用ASN.1符号定义的各类数值。这些编码规则的应用产生了用于这些值的传送语法。这些编码规则的规范暗示,它们也会被用于解码。本建议书 | 国际标准还定义了一组区分编码规则(DER)和一套规范编码规则(CER),以便对基本编码规则(BER)加以约束。它们之间的主要区别是,DER使用确定长度的编码形式,而CER使用不确定长度的编码形式。DER是更适合于小的编码数值,而CER更适合大的数值。这一编码规范暗示,它们也被用于解码。
Citation: https://handle.itu.int/11.1002/1000/9608
Series title: X series: Data networks, open system communications and security
  X.600-X.699: OSI networking and system aspects
  X.680-X.699: Abstract Syntax Notation One (ASN.1)
Approval date: 2008-11-13
Identical standard:ISO/IEC 8825-1:2008 (Common)
Approval process:AAP
Status: Superseded
Maintenance responsibility: ITU-T Study Group 17
Further details: Patent statement(s)
Development history
Ed. ITU-T Recommendation Status Summary Table of Contents Download
6 X.690 (02/2021) In force
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6.0 X.690 (2021) Err. 1 (09/2021) In force - - here
5 X.690 (08/2015) Superseded
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4.2 X.690 (2008) Cor. 2 (03/2014) Superseded
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4.1 X.690 (2008) Cor. 1 (10/2011) Superseded - - here
4 X.690 (11/2008) Superseded
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3.3 X.690 (2002) Technical Cor. 1 (05/2007) Superseded
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3.2 X.690 (2002) Amd. 2 (06/2006) Superseded
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3.1 X.690 (2002) Amd. 1 (10/2003) Superseded
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3 X.690 (07/2002) Superseded - - here
2.3 X.690 (1997) Technical Cor. 2 (02/2001) Superseded
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2.2 X.690 (1997) Amd. 1 (06/1999) Superseded
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2.1 X.690 (1997) Technical Cor. 1 (06/1999) Superseded
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2 X.690 (12/1997) Superseded
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1.3 X.690 (1994) Technical Cor. 3 (12/1997) Superseded - - here
1.2 X.690 (1994) Technical Cor. 2 (12/1997) Superseded - - here
1.1 X.690 (1994) Technical Cor. 1 (11/1995) Superseded - - here
1 X.690 (07/1994) Superseded - - here