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GB/T 17902.2-2005 English PDF

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GB/T 17902.2-2005: Information technology -- Security techniques -- Digital signatures with appendix -- Part 2: Identity-based mechanisms
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 17902.2-2005	English	524	Add to Cart	4 days [Need to translate]	Information technology -- Security techniques -- Digital signatures with appendix -- Part 2: Identity-based mechanisms	Valid	GB/T 17902.2-2005

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Basic data

Standard ID	GB/T 17902.2-2005 (GB/T17902.2-2005)
Description (Translated English)	Information technology. Security techniques-Digital signatures with appendix. Part 2: Identity-based mechanisms
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	L80
Classification of International Standard	35.040
Word Count Estimation	23,291
Date of Issue	2005-04-19
Date of Implementation	2005-10-01
Adopted Standard	ISO/IEC 14888-2-1999, IDT
Regulation (derived from)	Announcement of Newly Approved National Standards No. 6 of 2005 (No. 80 overall)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China, China National Standardization Administration Committee
Summary	This standard specifies the message of arbitrary length with appendix mechanism of identity-based signature and digital signature verification process and the overall structure of the basic process.

GB/T 17902.2-2005: Information technology -- Security techniques -- Digital signatures with appendix -- Part 2: Identity-based mechanisms

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Information technology.Security techniques-Digital signatures with appendix.Part 2. Identity-based mechanisms ICS 35.040 L80 National Standards of People's Republic of China GB/T 17902.2-2005/ISO /IEC 14888-2.1999 Information technology security technology with digital signature of the appendix Part 2. Identity-based mechanisms (ISO /IEC 14888-2..1999, IDT) Released on.2005-04-19 Implemented.2005-10-01 General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration issued

Content

Foreword III 1 Scope 1 2 Normative references 1 3 Overview 1 4 Terms and Definitions 1 5 symbol 2 6 key generation process 2 6.1 Generating Domain Parameters 2 6.2 Generate Authentication Key and Signature Key 3 7 Signature Process 3 7.1 Generating Pre-Signature 3 7.2 Preparing the message 4 7.3 Calculating evidence 4 7.4 Calculating signature 4 8 Verification process 5 8.1 Preparing the message 6 8.2 Searching for evidence 6 8.3 Calculation Verification Function 7 8.4 Verification evidence 7 9 Guilou-Quisquater Signature Mechanism 7 9.1 Public Key Export Function 8 9.2 Preparing the message 8 9.3 Calculating evidence 8 9.4 Calculating the first part of the signature 8 9.5 Calculating the assignment 8 10 Identity-based signature with short assignment 8 10.1 Preparing Message 8 10.2 Calculating Evidence 8 10.3 Calculating the assignment 8 11 Identity-based signature with message hash code retrieval 8 11.1 Calculating Evidence 9 11.2 Calculating the first part of the signature 9 Appendix A (informative) Numerical example 10 A. 1 Numerical example 10 of the key generation process A. 1.1 Generating domain parameters 10 A. 1.2 Generate verification key and signature key 11 A. 2 Numerical example of the Guilou-quisquater signature mechanism described in Chapter 9 A. 2.1 Signature Process 11 GB/T 17902.2-2005/ISO /IEC 14888-2.1999 A. 2.2 Verification process 12 A. 3 Numerical example 13 of an identity-based signature with a short assignment described in Chapter 10 A. 3.1 Signature Process 13 A. 3.2 Verification process 14 A. 4 Numerical example 14 of the identity-based signature given by the message hash code search described in Chapter 11 A. 4.1 Signature Process 14 A. 4.2 Verification process 15 Appendix B (informative) Patent Information 17 Reference 18 Figure 1 Signature process with deterministic evidence 4 Figure 2 Signature process with randomized evidence 5 Figure 3 Verification process with deterministic evidence 6 Figure 4 Verification process with randomized evidence 7 GB/T 17902.2-2005/ISO /IEC 14888-2.1999

Foreword

GB/T 17902 "Information Technology Security Technology with Digital Signature of the Appendix" consists of the following parts. Part 1. Overview; Part 2. Identity-based mechanisms; Part 3. Certificate-based mechanisms. This part is the second part of GB/T 17902, which is equivalent to the international standard ISO /IEC 14888-2..1999 "Information Technology Safety Technology" Digital signatures with appendix Part 2. Identity-based mechanisms (English version). Appendix A and Appendix B of this section are informative annexes. This part is proposed by the Ministry of Information Industry of the People's Republic of China This part is under the jurisdiction of the National Information Security Standardization Technical Committee; This part was drafted by China Electronics Technology Standardization Institute and State Key Laboratory of Information Security. The main drafters of this section. Ye Maofeng, Chen Xing, Luo Fengying, Hu Lei, Ye Dingfeng, Zhang Zhenfeng, Huang Jiaying. GB/T 17902.2-2005/ISO /IEC 14888-2.1999 Information technology security technology with digital signature of the appendix Part 2. Identity-based mechanisms

1 Scope

GB/T 17902 specifies various digital signature mechanisms with appendices for messages of any length. It is suitable for providing entity authentication, data A scheme for initial identification, non-repudiation and data integrity. This part of GB/T 17902 specifies the signature and verification of an identity-based digital signature mechanism with an appendix for messages of any length. The overall structure and basic process of the process.

2 Normative references

The terms of the following documents become the provisions of this part by reference in this part of GB/T 17902. Quotations with dated , all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouragement is achieved under this section The parties to the agreement study whether the latest versions of these documents can be used. For undated references, the latest edition applies to this section. GB 15851-1995 Information technology security technology Digital signature scheme with message recovery (idt ISO /IEC 9796.1991) GB/T 17902.1-1999 Information technology security technology with digital signatures in appendix Part 1. Overview

3 Overview

The verification of the digital signature requires the verification key of the signature entity. Therefore, the authenticator must put the correct verification key with the signature entity, or Specifically, it is associated with the (partial) identification data of the signature entity. If this connection is inherent to the verification key itself, this scheme It is called "identity-based." The key generation process for the identity-based scheme defined in this section includes a trusted third party. This trusted third party has a secret Parameter---Key generation index, which is used to derive the signature key of other entities. The secretness of the signature key unconditionally depends on the key generation The secret of indexing. In the verification of identity-based signatures, two parameters are required. The first parameter is the domain validation index, which is common to all entities. The second parameter is the verification key of the signing entity, which is specific to each entity. Identity-based mechanisms defined in this section The entity's authentication key is obtained directly from the entity's identification data using a public function. The identity-based signature mechanism with an appendix is an example of a randomization mechanism, as described in GB/T 17902.1-1999. Digital sign The name and verification process description follows the general procedure defined in Chapter 10 of GB/T 17902.1-1999. In particular, this standard uses General requirements conditions, definitions and symbols provided in GB/T 17902.1-1999. An identity-based digital signature mechanism with an appendix is defined in the detailed description of the following process. They are. a) the key generation process; b) the signature process; c) Verification process.

4 Terms and definitions

The following terms and definitions apply to this part of GB/T 17902. GB/T 17902.2-2005/ISO /IEC 14888-2.1999

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