EN 50094:1992

Overview

EN 50094:1992 - EUROCRYPT (published under CLC and adopted as SIST EN 50094:1999) specifies an access control system for the MAC/packet family. The standard describes the EUROCRYPT conditional access system, whose purpose is to ensure that television, radio programmes or data services carried in MAC/packet systems are accessible only to customers who satisfy specified conditions, typically payment or subscription entitlements. This standard is relevant to television and radio broadcasting and to secure distribution of broadcast data services.

Key Topics

The document focuses on the structure and behaviour of a conditional access system (EUROCRYPT) applied to MAC/packet family transmissions. Key technical topics and requirements covered include:

• Scope and functional description of the EUROCRYPT access control system for MAC/packet family services.
• Access control objectives, i.e., ensuring service access is restricted to authorized subscribers and enforcing payment-related entitlements.
• Interoperability considerations for broadcasters, receivers and conditional access modules within MAC/packet environments.
• Operational roles (broadcasters, service providers, network operators and subscribers) and how access conditions are applied.
• Security and robustness requirements at a system level to protect content distribution and subscriber entitlement information.
• Application to radio, television and data services, clarifying where EUROCRYPT applies within broadcast architectures.

(Note: EN 50094 defines system-level access control requirements and scope; it does not replace implementation-specific cryptographic or device-level design choices.)

Applications

EN 50094 (EUROCRYPT) is intended for use where conditional access is required over MAC/packet broadcast systems. Typical practical applications:

• Pay-TV and subscription radio services delivered over MAC/packet networks.
• Secure broadcast distribution of premium or encrypted data services.
• Specification baseline for manufacturers of broadcast receivers, conditional access modules and headend systems targeting MAC/packet deployments.
• Reference for broadcasters and pay-TV operators defining entitlement, subscription and access-control policies.

Who would use this standard:

• Broadcasters and content distributors implementing conditional access for MAC/packet transmissions.
• Equipment manufacturers (set-top boxes, conditional access modules) seeking interoperability with EUROCRYPT.
• System integrators and service operators designing subscriber-management and entitlement workflows.
• Regulatory bodies and test houses evaluating compliance for broadcast access-control systems.

Related Standards

• Other conditional access and broadcasting standards within the CLC/CENELEC framework and the MAC/packet family (consult current CLC catalogues for specific cross-references).
• National adoptions such as SIST EN 50094:1999 reflect EN 50094:1992 in national publication.

Keywords: EN 50094, EUROCRYPT, access control system, conditional access, MAC/packet family, pay TV, television broadcasting, radio broadcasting, CLC.