ISO/IEC 23009-4:2018 PDF

Name: ISO/IEC 23009-4:2018 — Information technology — Dynamic adaptive streaming over HTTP (DASH) — Part 4: Segment encryption and authentication
SKU: ISO/IEC 23009-4:2018
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Information technology — Dynamic adaptive streaming over HTTP (DASH) — Part 4: Segment encryption and authentication

Название (английский):

ISO/IEC 23009-4:2018

Information technology — Dynamic adaptive streaming over HTTP (DASH) — Part 4: Segment encryption and authentication

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 29
Дата публикации:: 24 октября 2018 г.
Издание:: ISO/IEC IS 23009 edition 2 version 1
ICS:: 35.040.40

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Описание (английский):

This document specifies: — Format-independent segment encryption and signalling mechanisms for use with any media segment format used in DASH (ISO/IEC 23009-1). — Mechanisms to ensure segment integrity and authenticity for use with any segment used in DASH (ISO/IEC 23009-1).

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO/IEC 23009-4:2018 - "Information technology - Dynamic adaptive streaming over HTTP (DASH) - Part 4: Segment encryption and authentication" specifies format‑independent mechanisms to encrypt DASH media segments and to verify their integrity and authenticity. The standard defines MPD signalling elements, out‑of‑band key resolution concepts, cryptoperiod management, and interoperable authentication approaches so that any DASH segment format (ISO/IEC 23009-1) can be protected consistently.

Keywords: ISO/IEC 23009-4:2018, DASH segment encryption, segment authentication, MPD security, content protection, cryptoperiod.

Key topics and technical requirements

Scope and intent

Format‑independent segment encryption and signalling for DASH.
Mechanisms to ensure segment integrity and authenticity across DASH segments.

Content protection framework

Separation of key system (provides keys/licenses) and encryption system (applies encryption).
MPD interfaces for out‑of‑band derivation of keys, IVs and other parameters.

Signalling elements (MPD)

Elements such as ContentProtection, SegmentEncryption, License, CryptoPeriod, and CryptoTimeline are defined for declaring encryption/authentication in the MPD.

Encryption systems and algorithms

Support for multiple systems including AES-128 CBC, AES-128 GCM, and Common encryption paradigms.
Extensibility to add new encryption and key systems (e.g., support added for ISO/IEC 23001-7).

Cryptoperiods and key derivation

Definition of cryptoperiods (continuous segments using the same key/IV).
Mechanisms for assigning segments to cryptoperiods and deriving keys, IVs and additional authenticated data (AAD).

Segment authentication

Support for authentication tags and algorithms (e.g., SHA-256, HMAC‑SHA1) to verify integrity and authenticity.

Normative references

Uses established cryptographic and protocol references such as FIPS‑197 (AES), NIST SP 800‑38D (GCM), RFC 2104 (HMAC), RFC 7230 (HTTP).

Practical applications

Protecting on‑demand and live DASH streams against tampering and unauthorized access.

Enabling interoperable DRM and license workflows across players, CDNs and license servers.

Signalling encryption/authentication metadata in MPDs for client implementations.

Supporting secure content distribution pipelines for OTT platforms, broadcasters and media service providers.

Related standards

ISO/IEC 23009-1 (DASH Part 1: MPD and segment formats)

ISO/IEC 23001-7 (additional encryption system support)

FIPS‑197 (AES), NIST SP 800‑38D (GCM), RFC 2104 (HMAC), RFC 7230 (HTTP)

For implementers, ISO/IEC 23009-4:2018 provides the MPD signalling and cryptographic framework needed to deploy secure, interoperable DASH streaming with segment encryption and authentication.

ISO/IEC 23009-4:2018 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications

Who should use this standard

Related standards

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