The Internet Streaming Media Alliance (ISMA) has published its first Encryption and Authentication Specification for securely delivering content to multiple devices.

The specification is designed to lay down the framework for secure content delivery over Internet Protocol (IP) networks, and prescribe interoperability between encoders, streaming servers, and players that comply with open, standards-based technologies.

ISMA Encryption and Authentication 1.0 works at the core foundation of content delivery systems. It can integrate with a variety of right management systems and is player and device-type independent, so content developers get the flexibility in preparation and delivery of content that they need.

The specification offers a "modular approach", the Alliance claims, "so that various codecs such as MPEG-2 or the Advanced Video Codec (H.264) may be used. Likewise, the AES 128-bit encryption algorithm is the chosen default, but stronger encryption can be easily added if necessary."

Todd Tomlitz, ISMA board member and engineering manager for streaming infrastructure products at Sun, said: "We are pleased to present to the streaming media industry an alternative solution that builds upon existing open standards to facilitate interoperability between all types of devices, increase market adoption of products and services offered by a wide variety of vendors, and promote revenue-generating opportunities for content creation and delivery over public and private Internet networks."

Founded in December 2000, the Internet Streaming Media Alliance is a non-profit corporation whose mission is to accelerate the market adoption of a universal, open standard for streaming and progressive download of rich media over all types of Internet Protocols (IP).

Board members include Apple, AOL, Sun, ContentGuard, IBM, Envivio, and VBrick, while the membership list includes Cisco, Dolby, the Fraunhofer Institute, Hitachi, Sony and more.