Patent attributes
A gate for regulating access in a transit system is disclosed. The gate comprises a movable barrier, secured storage, an RFID card reader, a first processing unit that processes a set of digits from an RFID credential, generates and transmits a hash value of the set of digits, and transmits a first bin. The gate comprises a memory, having a higher capacity than the secured storage, and a second processing unit, which sends validity information for a plurality of second bins having larger number of digits than the first bin, the validity information indicates which of the plurality of second bins is valid, check if the hash value is member of first list. If the hash value is on the first list, opening of the movable barrier is regulated and if a second bin from the plurality of second bins corresponding to the RFID credential is invalid, opening is denied.
