| 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） |
ITU-T X.690建议书| ISO/IEC 8825-1国际标准定义了一套基本编码规则（BER），可用于利用ASN.1记法定义的各类数值。应用这些编码规则可生成上述数值的传送语法。这些编码规则的规范暗示，它们也可用于解码。本建议书|国际标准还定义了一套区分编码规则（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。这些编码规则的规范暗示，它们也可用于解码。 |
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| Citation: |
https://handle.itu.int/11.1002/1000/12483 |
| 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: |
2015-08-13 |
| Identical standard: | ISO/IEC 8825-1 (Common) |
| Approval process: | AAP |
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Status: |
Superseded |
| Observation: | The zip file containing the Word versions of Rec. ITU-T X.680 (2015) | ISO/IEC 8824-1:2015 to Rec. ITU-T X.693 (2015) | ISO/IEC 8825-4:2015 can be found at: http://1f8a81b9b0707b63-19211.webchannel-proxy.scarabresearch.com/rec/T-REC-X.680-X.693-201508-S/en |
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Maintenance responsibility: |
ITU-T Study Group 17 |
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Further details: |
Patent statement(s)
Development history
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| Title |
Approved on |
Download |
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Guidelines for identity-based cryptosystems used for cross-domain secure communications
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2023
|
here
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Overview of hybrid approaches for key exchange with quantum key distribution
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2022
|
here
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Guidelines for security management of using artificial intelligence technology
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2022
|
here
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Successful use of security standards (2nd edition)
|
2020
|
here
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Description of the incubation mechanism and ways to improve it
|
2020
|
here
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Strategic approaches to the transformation of security studies
|
2020
|
here
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