ISO/IEC 18370-2:2016 PDF

Information technology — Security techniques — Blind digital signatures — Part 2: Discrete logarithm based mechanisms

Название (английский):

ISO/IEC 18370-2:2016

Information technology — Security techniques — Blind digital signatures — Part 2: Discrete logarithm based mechanisms

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 79
Дата публикации:: 1 июля 2016 г.
Издание:: ISO/IEC IS 18370 edition 1 version 1
ICS:: 35.030

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Описание (английский):

ISO/IEC 18370-2:2016 specifies blind digital signature mechanisms, together with mechanisms for three variants of blind digital signatures. The variants are blind digital signature mechanisms with partial disclosure, blind digital signature mechanisms with selective disclosure and traceable blind digital signature mechanisms. The security of all the mechanisms in ISO/IEC 18370-2:2016 is based on the discrete logarithm problem. For each mechanism, ISO/IEC 18370-2:2016 specifies the following: - the process for generating the keys of the entities involved in these mechanisms; - the process for producing blind signatures; - the process for verifying signatures. ISO/IEC 18370-2:2016 specifies another process specific to blind signature mechanisms with selective disclosure, namely, the following: - the presentation process. Furthermore, ISO/IEC 18370-2:2016 specifies other processes specific to traceable blind signature mechanisms, namely, the following: a) the process for tracing requestors; b) the process for tracing signatures; c) the requestor tracing evidence evaluation process (optional); d) the signature tracing evidence evaluation process (optional).

Технические детали

Технический комитет: ISO/IEC JTC 1/SC 27 - Information security, cybersecurity and privacy protection
SKU: ISO/IEC 18370-2:2016

Abstract

Overview

ISO/IEC 18370-2:2016 - Information technology - Security techniques - Blind digital signatures - Part 2: Discrete logarithm based mechanisms - specifies concrete blind digital signature mechanisms whose security is based on the discrete logarithm problem. Published by ISO/IEC JTC 1/SC 27, this part defines multiple mechanisms and three important variants: partial disclosure, selective disclosure, and traceable blind signatures. For each mechanism the standard specifies the procedures for key generation, blind signature production, and signature verification, plus additional processes where applicable (presentation, tracing and evidence evaluation).

Key topics and requirements

Mechanisms covered
- Blind signatures (basic blind signing)
- Blind signatures with partial disclosure (signer may embed agreed data)
- Blind signatures with selective disclosure (controlled message choices and a presentation process)
- Traceable blind signatures (requestor and signature tracing, optional evidence evaluation)
Core processes specified
- Key generation for all entities involved
- Blind signature process (how a requestor obtains a signature without revealing the message)
- Verification process (how verifiers check a signature)
- Presentation process for selective disclosure
- Tracing processes and evidence evaluation for traceable variants
Security basis
- All mechanisms rely on the discrete logarithm (DL) family of hardness assumptions (including considerations of DDH) and require secure collision-resistant hash functions.
Implementation guidance
- Annexes provide domain parameter descriptions, conversion functions, special hash functions, numeric examples, and security/parameter guidance (key sizes, hash choices, RNG considerations).
Scope exclusions
- Key management, certification and random-bit generation techniques are outside the scope (references to ISO/IEC standards for these topics are provided).

Applications and who should use it

ISO/IEC 18370-2 is intended for:

Cryptographers and protocol designers building privacy-preserving systems
Developers of anonymous credentials, e-cash, e-voting, and privacy-aware authentication solutions
Security architects selecting blind signature schemes based on discrete logarithm groups (finite field or elliptic curve)
Standards bodies and auditors assessing compliance of blind-signature components

Benefits include standardized, interoperable definitions of blind signing workflows and traceability options while preserving requestor privacy under defined cryptographic assumptions.

Related standards

ISO/IEC 18370-1 - General principles and requirements for blind digital signatures (companion part)
ISO/IEC 10118, ISO/IEC 18031 - Hash functions and randomness guidance referenced by this part
Key management and certification references: ISO/IEC 9594-8, ISO/IEC 11770-3, ISO/IEC 15945

Keywords: ISO/IEC 18370-2:2016, blind digital signatures, discrete logarithm, selective disclosure, traceable blind signatures, partial disclosure, key generation, signature verification.

Overview

Key topics and requirements

Mechanisms covered
- Blind signatures (basic blind signing)
- Blind signatures with partial disclosure (signer may embed agreed data)
- Blind signatures with selective disclosure (controlled message choices and a presentation process)
- Traceable blind signatures (requestor and signature tracing, optional evidence evaluation)
Core processes specified
- Key generation for all entities involved
- Blind signature process (how a requestor obtains a signature without revealing the message)
- Verification process (how verifiers check a signature)
- Presentation process for selective disclosure
- Tracing processes and evidence evaluation for traceable variants
Security basis
- All mechanisms rely on the discrete logarithm (DL) family of hardness assumptions (including considerations of DDH) and require secure collision-resistant hash functions.
Implementation guidance
- Annexes provide domain parameter descriptions, conversion functions, special hash functions, numeric examples, and security/parameter guidance (key sizes, hash choices, RNG considerations).
Scope exclusions
- Key management, certification and random-bit generation techniques are outside the scope (references to ISO/IEC standards for these topics are provided).

Applications and who should use it

ISO/IEC 18370-2 is intended for:

Cryptographers and protocol designers building privacy-preserving systems
Developers of anonymous credentials, e-cash, e-voting, and privacy-aware authentication solutions
Security architects selecting blind signature schemes based on discrete logarithm groups (finite field or elliptic curve)
Standards bodies and auditors assessing compliance of blind-signature components

Benefits include standardized, interoperable definitions of blind signing workflows and traceability options while preserving requestor privacy under defined cryptographic assumptions.

Related standards

ISO/IEC 18370-1 - General principles and requirements for blind digital signatures (companion part)
ISO/IEC 10118, ISO/IEC 18031 - Hash functions and randomness guidance referenced by this part
Key management and certification references: ISO/IEC 9594-8, ISO/IEC 11770-3, ISO/IEC 15945

Keywords: ISO/IEC 18370-2:2016, blind digital signatures, discrete logarithm, selective disclosure, traceable blind signatures, partial disclosure, key generation, signature verification.

ISO/IEC 18370-2:2016 PDF

Технические детали

Abstract

Overview

Key topics and requirements

Applications and who should use it

Related standards

Похожие стандарты

Abstract

Overview

Key topics and requirements

Applications and who should use it

Related standards

Похожие стандарты

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