SIA Launches New Access Control and Identity Initiative

ALEXANDRIA, Va. — The Security Industry Association (SIA) announced the Open Supervised Device Protocol (OSDP) with Data Security Extension as a new standards department project within the organization’s American National Standards Institute (ANSI) accredited standards program.

OSDP was originally developed by HID Global and Mercury Security Corp. as a communication protocol for interfacing peripheral devices, like card readers, to control panels or other security management systems. Codebench Inc. has also recently contributed to OSDP.

The SIA version will support both IP communications and point-to-point serial interfaces such as RS-485. The serial version of the protocol has been fully adopted by numerous manufacturers and others are in the development stages of implementation.

“We think that there is a glaring need for this type of specification within the industry,” says SIA Standards Chairman Steve Van Till. “There is currently no standard protocol for interfacing readers to physical access control systems, other than the outdated Wiegand protocol, which does not support advanced operations such as those required for PKI [public key infrastructure].”

SIA will review the present version of OSDP through its normal committee process, which includes a public comment period. The organization also plans to extend the protocol for IP transport to ensure the implementation needs of the industry are met. The review will also include a discussion of how it fits within the Federal Identity Credentialing and Access Management (FICAM) architecture.


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