ISO/IEC 23001-3:2008

Overview - ISO/IEC 23001-3:2008 (XML IPMP messages)

ISO/IEC 23001-3:2008 defines a standard XML API for IPMP (Intellectual Property Management and Protection) messages used in MPEG systems technologies. Often called “XML IPMP messages,” this part of the ISO/IEC 23001 family specifies the XML message formats and containers that enable interoperable exchange of DRM-related information (licenses, keys, authentication data, watermarking parameters, etc.) between IPMP components - both within a device and across devices. Many messages are XML translations of messages originally defined in ISO/IEC 13818-11 and ISO/IEC 14496-13 and are harmonised with the MPEG-21 framework (ISO/IEC 21000-4).

Key topics and technical requirements

• XML-based API and schema: Message formats are specified in XML Schema (namespace urn:mpeg:mpegB:schema:XML-IPMP-MESSAGES:2007) to standardize syntax and semantics for message exchange.
• Message containers: Two primary containers are defined - MessageFromDID (from the IPMP Processor to a Tool, carrying data extracted from a digital item) and MessageFromTool (Tool-originated or inter-Tool messages).
• Message classes and bases: Common base types (IPMPBaseType, ToolMessageBase, Data_BaseClass) define required fields such as Sender, Recipient (IPMP Tool Context IDs; device/terminal is identified by value ‘0’), and dataID for request/response correlation.
• Macro-categories of messages:
  • Mutual Authentication Messages
  • IPMP Tool Connection / Disconnection
  • IPMP Tool Notification Messages
  • IPMP Processing Messages (licenses, keys, watermark info)
  • User Interaction Messages
  • Additional (decoupling) and Legacy Messages
• Contexts of use: Supports intra-device communication (IPMP Processor ↔ IPMP Tools) and inter-device communication (e.g., streaming scenarios using Digital Item Streaming - ISO/IEC 23000-5).

Practical applications and who uses it

• DRM and media platform developers use the standard to implement interoperable message exchanges between DRM modules (IPMP Tools) and the IPMP Processor.
• Device manufacturers and set-top box / media player vendors implement the XML API to manage protected content playback, tool instantiation, authentication and key delivery.
• Content distributors and streaming services leverage inter-device message definitions for secure delivery and remote management of IPMP Tools when streaming Digital Items.
• IPMP Tool vendors and integrators adopt the schema to ensure their tools can be instantiated, initialized, authenticated and managed across diverse MPEG-21 compliant environments.

Related standards

• ISO/IEC 21000-4 (MPEG-21 IPMP Components)
• ISO/IEC 13818-11 (MPEG-2 IPMP)
• ISO/IEC 14496-13 (MPEG-4 IPMP extensions)
• ISO/IEC 23000-5 (Digital Item Streaming)

ISO/IEC 23001-3:2008 is essential for implementing interoperable, XML-based IPMP messaging in MPEG ecosystems, ensuring consistent handling of DRM data between tools, processors and devices.