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Security Technology Executive
Updated: May 22nd, 2008 11:51 AM GMT-05:00
Convergence Q&A
The ISC West ReportThe Latest from SIW
Mace to launch dealer program, acquire central station Basics of establishing an employee ID badging system The security week that was: 1/02/09 The top 40 security stories of 2008 Homemade bombs force evacuations in Aspen, Colo. Toronto wraps up municipal surveillance pilot project
By Ray Bernard, PSP, CHS III
Security Technology & Design
This month’s column provides a change from the usual approach. Instead of asking a question of readers, I’m answering a question that has been asked of me by dozens of readers.
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Strong IT security technology lets smart cards securely carry messages back and forth between a few hard-wired readers (for example, at building perimeter doors and high-security doors) and readers that have no wired or wireless connection. The security privileges of the cardholder (digitally signed by the access control system server) are written to the cards and securely carried to the non-networked readers, eliminating the need for the readers to store a database. The privilege records expire daily (or at whatever interval you set), so there is no need for a long list of revoked cards at the reader either. A small “hot list” of the current day’s revocations is written to cards and carried to the readers by the cardholder access activity. The “access denied” and “access granted” messages are written to multiple cards, to ensure they get carried back to a hard-wired reader by normal cardholder activity.
The technology was introduced at ISC West in the new E-Plex® 5900 Card-Connected Electronic Lock from Kaba Access Control. Unlike other standalone door locks, the architecture of the Card-Connected technology enables central management of the non-networked readers, for example, through the Lenel OnGuard system.
There is no change to the management of the cardholder database, which means no walking around with a PDA to update reader data. This drastically reduces the Total Cost of Ownership for a Card-Connected reader compared to a typical reader that requires wiring through a network to an access control panel. Installation can be accomplished in about 1/3 of the time required for a standard reader. Thus the per-door cost of security is significantly lowered. This allows access control to be affordably extended to many more locations (especially remote locations with no network connectivity) and many new types of assets (such as supply and tool bins, and mobile assets). Fingerprint biometric access is fully supported by the technology.