DE10003057A1 - System for testing access authorising cards with several characteristic signs - Google Patents

Abstract

One sign (X) is unequivocal index or card number. The system comprises a tester with a reader of the characteristic signs (X,Y), a comparator of the read-out signs, or derived signals, and an evacuator for the comparison result, differentiating authentic from non-authentic access authorising cards (1).One characteristic sign (Y) of the access characterising card is in the form of a digital signature of the proprietor of the card, using a signature code (2). An Independent claim is included for the access authorising card.

Description

The invention relates to a system for checking Zu kicking cards mentioned in the preamble of claim 1 Genus as well as such an access card.

Such a system is already known (DE 197 16 049 A1). It serves to check admission tickets, thus unauthorized wisely duplicated tickets from legitimate or valid tickets and unauthorized persons of the Entry to certain events can be denied. In the known system, the admission ticket has two as Codes designed test marks on; here is the first Code an arbitrary and especially by chance generator produced test mark, while the second Code one from ticket to ticket Coding forms. When the admission ticket is issued, the first coding stored in a memory that later on brought the event location and there in the test direction is integrated that impermissible assignments of the  sequential codes to that generated by the random number generator and arbitrary codes stored in the memory are. It is also provided that each ticket in the test facility with ge stored there from before checked admission tickets. Data is compared. If the duplication of both test indicators is already from a previously checked admission ticket detected, an alarm is triggered or the close joins the event denied. One disadvantage of this The test system consists of the fact that authorized persons also have access be held if there is already one Free admission for holders of a fake ticket give and the test mark of this fake entry card have been saved in the test facility.

The invention has for its object the access card to make testing safer with simple means.

The invention is characterized in claims 1 and 8 and preferred embodiments of the invention are in the dependent claims claimed. Also, in the description below, too in connection with the drawing, preferred Forms of training explained in more detail.

According to the invention, the beneficiary owns not only that of the issuing device of the access card with at least an access badge, but also a signing key, especially in Form of a so-called "electronic signature". With the authorized owner of the Access badge the access badge with a digital Signature as a further test indicator. Fakes of without  such identity cards provided with such a digital signature therefore become independent in the test facility immediately recognized from the time whether the real access card before or is only checked there after a forged access card. Especially at large events where thousands of people shiver or gain access to listeners with tickets and a fast and secure authenticity check of the entrance card is required by machine, the Invention extraordinary. The organizer can do it himself all admission tickets marked with a check mark, ins especially a sequential number printed or otherwise are provided, each in sets for different sales days doors, which in turn separate signing keys hold or already own for other purposes and there the one Step card with the digital signature as a second verification code characters. The organizer knows which entry cards (with certain consecutive numbers) has been assigned to the agency, so that the testing facility Counterfeit tickets can easily be found.

It is understood that in the invention as well as in the prior art the technology test mark also by optically not without further perceptible markings can be formed since reading the test marks in the maschi test facility nell takes place and not only visually perceptible, but also mechanically, magnetically and / or electronically readable Test labels can find applications.

The digital signature is expediently carried out by a asynchronous encryption. This is better known as such State of the art.  

Check indicators can e.g. B. coded or alphanumeric be educated. The use of barcodes is advantageous. Magnetic stripes and especially electronic chips, which are integrated in the admission cards or admission tickets are suitable means for taking tests marks represent.

Using the drawing, an embodiment of the He The invention is schematically explained in more detail below; there demonstrate:

Fig. 1 is a schematic representation of the test system according to the invention and

Fig. 2 shows a schematic structure of a test device that can be used in the invention.

According to FIG. 1, an output station A supplies an access card 1 with a check indicator X, in particular in the form of a consecutive card number, in the form of an admission ticket for a major event. In addition, the issuing station A provides the buyer of the admission ticket with a signing key 2 as the authorized owner B, with which he applies a second test identifier Y in the form of a digital signature by asynchronous encryption or coding on the admission ticket, ie the access card 1 . At the event location, owner B shows his admission ticket with the two test marks X and Y. This is checked in the test device by reading both test marks X, Y from a reader L. This reader L passes signals and data corresponding to the test identifier X and Y to a comparator V, which carries out a comparison, in particular, with data supplied by the output station A. The comparison result is passed on from the comparator V to the evaluation device AU, which in turn can, but does not have to, have a signal connection to the output station A. The evaluation station AU then emits a positive signal when the authenticity of the access card has been ascertained; it then emits a negative or alarm signal if a forgery of the ticket has been found.

Claims (8)

1.System for checking access badges ( 1 ), such as admission tickets to events, in which the access badge ( 1 ) has at least two check marks (X, Y), of which one check mark (X) is a unique booking or ID number, with a test device which has a reading device (L) for reading both test marks (X, Y), a comparator (V) for comparing the read test marks (X, Y) or signals derived therefrom and an evaluation device (AU) which has the Evaluates the comparison result and distinguishes non-authentic from authentic access cards ( 1 ), characterized in that a test identifier (Y) of the access card ( 1 ) is designed as a digital signature signed by the legal owner of the access card ( 1 ) by means of a signing key ( 2 ). 2. System according to claim 1, characterized in that the signature key ( 2 ) performs an asynchronous encryption of the signature on the access card ( 1 ). 3. System according to claim 1 or 2, characterized, that the comparator (V) out as a digital signature formed check indicator (Y) with the as booking or ID number of the trained test mark (X) is compared. 4. System according to one of the preceding claims, characterized, that test marks are alphanumeric. 5. System according to one of the preceding claims, characterized, that test marks are designed as codes. 6. System according to claim 5, characterized, that the code is designed as a barcode. 7. System according to any one of the preceding claims, characterized in that the access card ( 1 ) has an electronic chip in which the digital signature is stored. 8.Access pass with at least two machine-readable test marks (X, Y), one of which is a test mark (X) as the unique pass number attached to the pass (A) and another test mark (Y) is the legal owner (B) of the pass ( 1 ) digitally signed signature is formed.