Access control for rental cars

摘要: Cars of a car rental system are made operable by having renter present digital key issued from the system. The specifies starting date and time given transaction, identification is for. further signed for authenticity. A prospective makes online reservation over Web downloads into portable storage device which can be used to operate reserved on day On pickup day, goes inserts slot car. Upon successful verification key, enabled keep until he or she wants return process starts obtain invalidated Once invalidates provided renter, no longer Since in-car controller able decipher authorization information, there need re-program each renter. will held liable presents central station To prevent lost being unauthorized parties, contain information such as personal number (PIN) hash PIN authorized For extra protection, opt include his her in when created parking lot operated without security personnel checking proper authorization.