ISO IEC 23001-9-2016 PDF
Name in English:
St ISO IEC 23001-9-2016
Name in Russian:
Ст ISO IEC 23001-9-2016
Original standard ISO IEC 23001-9-2016 in PDF full version. Additional info + preview on request
Full title and description
Information technology — MPEG systems technologies — Part 9: Common encryption of MPEG-2 transport streams. Specifies a common-encryption format for encrypted content carried in MPEG-2 transport streams that is interoperable with the common‑encryption model used in ISO/IEC 23001‑7, enabling conversion (re‑encapsulation) between encrypted MPEG‑2 TS and encrypted ISO‑BMFF without re‑encryption.
Abstract
Defines a per-access-unit common encryption model and signalling mechanisms for MPEG‑2 transport streams so that multiple DRM/key systems can operate against the same encrypted stream. The standard covers encryption parameter signalling (ECM, PSSH-style private PID), transport mapping using transport_scrambling_control and descriptors for algorithm and byte‑range signalling, facilitating re‑encapsulation workflows without decrypting content.
General information
- Status: Published.
- Publication date: August 2016 (Edition 2).
- Publisher: ISO/IEC (International Organization for Standardization / International Electrotechnical Commission).
- ICS / categories: 35.040.40.
- Edition / version: Edition 2 (2016).
- Number of pages: 12.
Scope
Covers a common encryption format and the signalling required to indicate which parts of an MPEG‑2 transport stream are encrypted, which encryption scheme is used, and how keys/initialization vectors are referenced. The scope explicitly aims to maintain compatibility with ISO/IEC 23001‑7 so content can be re‑encapsulated between MPEG‑2 TS and ISO‑BMFF without re‑encryption, and does not itself define key delivery protocols or DRM business rules.
Key topics and requirements
- Per-access-unit encryption model: each access unit (AU) encrypted separately with associated key identifier and IV.
- ECM signalling: Entitlement Control Messages carry key identifiers and IVs and are used frequently because encryption is applied per AU.
- PSSH-style private PID: mechanism to carry vendor-specific license or PSSH-like data (one PID per DRM system).
- Descriptors for algorithms and byte-range encryption (e.g., CA_descriptor, cets_byte_range_descriptor) to support partial payload encryption.
- Transport mapping rules: use of transport_scrambling_control to mark packet payloads as clear or encrypted and association of packets with nearest ECM for key/IV resolution.
- Re‑encapsulation requirement: signalling that permits remultiplexing or conversion between TS and ISO‑BMFF without decrypting/re‑encrypting media when parameters and encrypted byte ranges remain consistent.
Typical use and users
Used by broadcasters, headend/packaging vendors, DRM vendors, content distributors and system integrators implementing protected live or stored media delivery over MPEG‑2 transport streams. Typical applications include conditional access systems, multisystem DRM packaging (so one encrypted stream can be consumed by different license systems), and workflows that require re‑encapsulation between transport and file formats.
Related standards
Closely related to ISO/IEC 23001‑7 (Common encryption in ISO base media file format files) — the two form the MPEG Common Encryption (CENC) pair enabling interoperable encryption across container formats. Also part of the ISO/IEC 23001 (MPEG systems technologies) family and often used alongside conditional‑access and DVB/ATSC transport specifications when applied in broadcast/cable systems.
Keywords
MPEG‑TS, common encryption, CENC, ECM, PSSH, transport_scrambling_control, CA_descriptor, byte‑range encryption, initialization vector (IV), key identifier, re‑encapsulation, DRM, AES‑CTR, AES‑CBC (modes signalled in profiles).
FAQ
Q: What is this standard?
A: An ISO/IEC standard (Part 9 of ISO/IEC 23001) that specifies a common-encryption format and signalling for encrypting media carried in MPEG‑2 transport streams to support interoperable DRM workflows and re‑encapsulation with ISO‑BMFF.
Q: What does it cover?
A: The encryption signalling model (per‑access‑unit encryption), ECM and PSSH‑style signalling, descriptors for algorithm/byte‑range information, transport mapping rules and requirements to allow conversion between TS and ISO‑BMFF without re‑encryption. It does not define key delivery protocols or DRM business rules.
Q: Who typically uses it?
A: Broadcasters, conditional access system vendors, packagers, DRM vendors, streaming/headend engineers and integrators who need interoperable encryption for MPEG‑2 transport streams and compatibility with ISO‑BMFF workflows.
Q: Is it current or superseded?
A: The 2016 document is Edition 2 and is published (August 2016). It replaced the 2014 edition; ISO standards are reviewed periodically (typically every 5 years). Users should check the ISO catalogue for any later amendments or revisions.
Q: Is it part of a series?
A: Yes — it is Part 9 of the ISO/IEC 23001 (MPEG systems technologies, MPEG‑B) series and is commonly paired with ISO/IEC 23001‑7:2016 (CENC for ISO‑BMFF) to provide cross‑container common encryption.
Q: What are the key keywords?
A: CENC, MPEG‑TS, ECM, PSSH, IV, key identifier, transport_scrambling_control, byte‑range encryption, re‑encapsulation, DRM.