ISO IEC 15432-1999 PDF

Full title and description

Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Specification, functional model and information flows — Wireless Terminal Authentication supplementary services (WTAT and WTAN). This International Standard defines the user-facing and functional-model descriptions for supplementary authentication services that allow validation of wireless terminal users and validation of the PISN (Private Integrated Services Network) toward a served wireless terminal.

Abstract

ISO/IEC 15432:1999 specifies two complementary Wireless Terminal Authentication supplementary services: SS‑WTAT (authentication of a Wireless Terminal Mobile user by the PISN) and SS‑WTAN (authentication of the PISN by a served wireless terminal user). The document contains stage 1 (service definition as seen by users) and stage 2 (functional entities and information flows) specifications. Authentication is based on challenge‑and‑response exchanges; the standard defines information flows and service behaviour but does not prescribe specific cryptographic algorithms or signalling protocol details (stage 3).

General information

• Status: Published
• Publication date: 9 September 1999
• Publisher: ISO and IEC (joint publication)
• ICS / categories: 33.040.35 (Telephone networks)
• Edition / version: Edition 1.0
• Number of pages: 34

Scope

The standard applies to Private Integrated Services Networks (PISN) and the basic services for which wireless terminal authentication is relevant (see related PISN basic-service specifications). It defines the functional model and the information flows required to support authentication of wireless terminal users by the network (SS‑WTAT) and authentication of the network by wireless terminal users (SS‑WTAN). The document covers stage 1 and stage 2 supplementary service specifications; stage 3 (signalling protocols and conformance testing) is outside its scope.

Key topics and requirements

• Definitions and service descriptions for SS‑WTAT and SS‑WTAN (stage 1 requirements).
• Functional entities and information-flow diagrams showing how authentication parameters are exchanged (stage 2).
• Use of challenge‑and‑response mechanisms as the authentication method; specification of required message flows rather than specific cryptographic algorithms.
• Behaviour on authentication success and failure (service acceptance, rejection or restriction scenarios).
• Applicability to basic PISN services (interoperation considerations with existing PISN specifications such as ISO/IEC 11574).
• Reference to the three‑stage supplementary‑service development model (per ITU method) and indication that stage 3 signalling specifications are handled elsewhere.

Typical use and users

Primary users are telecommunications standards developers, PISN equipment manufacturers, network architects and implementers of PISN service features, and security architects designing authentication features for wireline/wireless integrated networks. National standards bodies, test laboratories and protocol designers refer to the standard when defining or validating functional behaviour and information flows for wireless terminal authentication services.

Related standards

Key related documents include ISO/IEC 11574 (basic PISN service definitions), ISO/IEC 15433 (inter‑exchange signalling protocol for Wireless Terminal Authentication — stage 3 signalling), and other ISO/IEC 1542x series documents that address PISN supplementary services and signalling. The standard also follows the supplementary‑service staging approach described in ITU‑T Recommendation I.130.

Keywords

Wireless Terminal Authentication, WTAT, WTAN, Private Integrated Services Network, PISN, supplementary service, stage 1, stage 2, functional model, information flows, challenge‑and‑response, authentication services.

FAQ

Q: What is this standard?

A: ISO/IEC 15432:1999 is an international standard that defines Wireless Terminal Authentication supplementary services for Private Integrated Services Networks, describing service behaviour (stage 1) and the functional model and information flows (stage 2) for SS‑WTAT and SS‑WTAN.

Q: What does it cover?

A: It covers service definitions and functional information flows for authenticating wireless terminal users to the PISN and authenticating the PISN to wireless terminal users, using challenge‑and‑response exchanges. It does not specify particular cryptographic algorithms or signalling protocol implementations (stage 3).

Q: Who typically uses it?

A: Telecom standards bodies, PISN network and equipment vendors, protocol and security implementers, and test laboratories use the standard to design, document and validate authentication service behaviour and required information exchanges.

Q: Is it current or superseded?

A: The publication date is 9 September 1999 (Edition 1.0). The document supplies stage 1 and stage 2 material; stage 3 signalling protocol work for Wireless Terminal Authentication is addressed in companion documents (for example, an inter‑exchange signalling protocol document was published subsequently). Organizations should confirm the present lifecycle status (confirmed, revised or withdrawn) with the ISO/IEC catalogue or their national standards body before relying on it for new implementations.

Q: Is it part of a series?

A: Yes. It belongs to a set of ISO/IEC publications addressing PISN supplementary services and signalling (the 1542x series), and it follows the three‑stage supplementary‑service specification model (stage 1, stage 2, stage 3).

Q: What are the key keywords?

A: Wireless Terminal Authentication, WTAT, WTAN, PISN, supplementary service, challenge‑and‑response, functional model, information flows.