Key Access Card

A keycard, while not actually considered a key, is a plastic card which stores a digital signature that is used with electronic access control locks. It is normally a flat, rectangular piece of plastic and may also serve as an ID card. There are several popular type of keycards in use and include the mechanical holecard, bar code, magnetic stripe, smart card (embedded with a read/write electronic microchip, and RFID proximity cards. The keycard is used by presenting it to a card reader; swiping or inserting of mag stripe cards, or in the case of RFID cards, merely being brought into close proximity to a sensor.

Bar code technology is not a secure form of a key, as the bar code can be copied in a photocopier and often read by the optical reader.

Magnetic stripe keycards are becoming increasingly easy to copy, but have the security advantage that one may change the stored key in a magnetic swipe card in case the current key may be compromised. This immediate change of the “key” information can be applied to other media, but this media probably offers the least expensive option, and the most convenient to users and managers of systems that use this media.


Location

Get in Touch