ISO IEC 19592-2-2017 PDF

Full title and description

Information technology — Security techniques — Secret sharing — Part 2: Fundamental mechanisms. This international standard specifies cryptographic secret sharing schemes and the fundamental mechanisms used to split, distribute and reconstruct secrets in secure systems.

Abstract

ISO/IEC 19592-2:2017 defines the purpose, scope and basic mechanisms of cryptographic secret sharing schemes, giving a framework for generating shares, reconstructing secrets and specifying security considerations and requirements for such schemes.

General information

• Status: Published (confirmed current).
• Publication date: 18 October 2017 (ISO/IEC edition 1, 2017).
• Publisher: International Organization for Standardization (ISO) in cooperation with IEC; developed by ISO/IEC JTC 1/SC 27.
• ICS / categories: 35.030 (IT security).
• Edition / version: Edition 1.0 (2017).
• Number of pages: 22 pages.

Scope

This part of ISO/IEC 19592 specifies cryptographic secret sharing schemes: the terminology, fundamental mechanisms for share generation and reconstruction, and the security considerations that apply to those schemes. It is intended to be used alongside ISO/IEC 19592-1 (Part 1: General) and other relevant key-management and security technique standards.

Key topics and requirements

• Definitions and terminology for secret sharing schemes and related concepts.
• Fundamental mechanisms for splitting a secret into shares and securely reconstructing the secret from shares.
• Threshold and access-structure concepts for controlling reconstruction privileges.
• Security requirements and considerations for confidentiality, integrity and robustness of shares and reconstruction processes.
• Conformance guidance and normative references to related parts and standards.

Typical use and users

Typical users include cryptographers, security architects, implementers of key-management and distributed-secret systems, certification bodies, and standards developers who need a formal, interoperable description of secret sharing mechanisms for secure applications and protocols.

Related standards

ISO/IEC 19592-2 is part of the ISO/IEC 19592 series; it is related to ISO/IEC 19592-1 (Part 1: General). National and regional adoptions (identical or identical adoptions) exist such as BS ISO/IEC 19592-2:2017 and corresponding INCITS and national publications that reproduce the ISO/IEC content.

Keywords

secret sharing, secret-splitting, threshold scheme, cryptography, shares, reconstruction, key management, IT security.

FAQ

Q: What is this standard?

A: ISO/IEC 19592-2:2017 is an international standard titled "Information technology — Security techniques — Secret sharing — Part 2: Fundamental mechanisms" that specifies cryptographic secret sharing schemes and their basic mechanisms.

Q: What does it cover?

A: It covers definitions, fundamental mechanisms for splitting and reconstructing secrets, threshold/access-structure concepts, and security considerations and requirements for secret sharing schemes.

Q: Who typically uses it?

A: Cryptographers, security architects, implementers of distributed key-management and secret-sharing systems, test and certification bodies, and standards developers use this standard when designing or evaluating secret-sharing mechanisms.

Q: Is it current or superseded?

A: The 2017 edition is the published (first) edition; the ISO bibliographic record shows the publication as confirmed and current following periodic review (the edition remains the valid version as reviewed by ISO/IEC processes).

Q: Is it part of a series?

A: Yes — it is Part 2 of the ISO/IEC 19592 series and is intended to be used together with ISO/IEC 19592-1 (Part 1: General).

Q: What are the key keywords?

A: Secret sharing, threshold scheme, shares, reconstruction, cryptography, key management, IT security.