1. Field of the Invention
The field of the invention is security and data processing related to smartcards, more particularly, batteryless, biometrically-enabled, “hybrid” smartcards (combination contact and contactless smartcards) with additional security features for improving the protection of secured facilities.
2. Related Art
There appears to be little or no directly related art. However, a few issued US patents discuss hybrid (combination) contact and “contactless” smartcards, but most seem to focus on inter- or intra-processor switching between contact and contactless inputs.
U.S. Pat. No. 4,582,985 to Lofberg teaches a fingerprint-enabled card in which all biometric authentication functions (including sensor template storage and biometric processing) take place on the card, but Lofberg is silent on handling of contactless function enablement on a combination contact/contactless data carrier.
U.S. Pat. No. 6,168,083 to Berger, et al., describes a chip-card with mode switching between contactless and contact-coupled mode. Apparently, the chip card of the invention is operable in either a contactless or a contact-coupled mode. For operation in the contactless mode, the card has an antenna coil and rectifier and other components known in the art, comprising a rectifier circuit. In the contactless mode, the card receives an AC signal. The rectifier circuit provides a rectified received AC signal. The rectified signal is used to power the internal circuitry of the chip card. The card also has a recognition circuit that recognizes whether an AC signal is actually received by the antenna coil. If the AC signal is recognized, the recognition circuit switches the chip card to contactless mode. If no AC signal is recognized, the recognition circuit switches the chip card to the contact-coupled mode.
While this patent and products it addresses appear utilitarian as intended, this patent does not appear to address or directly compare to the technology of the present invention. This patent claims the detection of AC power on the contactless circuit by providing a switch that exclusively selects the contactless input over contact inputs (the normal default in absence of AC power). In one embodiment of the present invention, two data processors are provided, to permit independent, simultaneously operable contactless and contact functions. Apparently the chip-card (smartcard) of Berger's invention operates in a mutually exclusive manner; i.e., his card can operate either in contactless mode, or can operate in a contact-coupled mode. In further comparison, the present invention is capable of simultaneously operable contact and contactless functions only after the card's user has been biometrically authenticated, after the biometrically-authenticated user and card are present together within a controlled facility—and only when the user and card are within areas they are explicitly authorized access, at times they are explicitly authorized access, and/or only in accordance with other (situational) defined requirements of any particular controlled facility.
U.S. Pat. No. 6,375,082 to Kobayashi, et al., describes a portable electronic device with “contact” and “contactless” interfaces. The contact interface includes contact terminals for exchanging driving power and data. The contactless interface includes means for generating electrical power and demodulating received data from a signal received via an antenna. The invention also includes an inhibiting option for inhibiting simultaneous operation of one or both contact and contactless interfaces when necessary or required, while the device is driven via one of the contacting and non-contacting interfaces.
While this patent makes a contribution to the art, it does not directly compare to technology of the present invention. In the Kobayasi patent, only one processor is used which is monitoring both contact and contactless input sources. The present invention uses at least one processor or uses a multiple-processor configuration.
The patent claims an arbitration device which resolves processor memory access conflicts, in order to prevent errors in the processor memory due to possible conflicting demands between contact and contactless sources.
This patent is not analogous to the present invention because it essentially deals with arbitration (switching logic) between contact and contactless functions within the processor of a portable electronic device.
By contrast, the present invention is indifferent to processor handling of data and arbitration between contact and contactless inputs, and is also indifferent as to whether one or more processors are used to implement these functions. Instead, the present invention can enable both functions simultaneously (assuming it's programmed to do so) only after biometric authentication is successfully completed, irrespective of the processing of the contact-reader-originated commands and/or contactless-reader-originated commands. Depending on implementation details, “enabling” in the present invention can take place either electronically on the smartcard and/or can take place externally via a security access control system (a.k.a., a “security panel” such as panel 56, as described in
U.S. Pat. No. 6,474,558 to Reiner discloses a contact/contactless smartcard. A card is provided which includes both contact and contactless circuitry, as well as a switch for applying power obtained from the contact circuitry to the contactless circuitry. The disclosed invention has contact and contactless processor components, whereby power and clock-signals for the contact components comes through the electrical smartcard contacts, and power and clock-signals for the contactless components comes from either a received, rectified RF signal or from the smartcard contacts.
By comparison, the present invention is indifferent to the means by which processor components obtain their power, but instead, enables both contact and contactless processor components, but only after completion of successful biometric authentication by at least one biometrically authenticated user.
Based on the foregoing, there is a need in the art for a batteryless, biometrically-enabled, contact/contactless smartcard with additional security characteristics, options, features, and benefits offered by the present invention. The above, indirectly-related art is useful, however, the aforementioned art does not teach the critical features of the present invention, nor does the related art offer directly comparable functionality to the critical features of present invention.
Accordingly, it is an object of the present invention to provide a batteryless smartcard that derives electrical power for biometric authentication from a smartcard reader, plus, also derives power for contactless functions when it enters the electromagnetic field of a contactless smartcard reader.
It is another object, to provide a combination contact/contactless smartcard—i.e., a “hybrid” smartcard—which has “ingress enabling” of its' contactless functions after an authorized user has authenticated and entered the perimeter of a controlled facility—and which has “egress disabling” of said contactless functions after an authorized user leaves the perimeter of the controlled facility.
It is another object, to provide a hybrid smartcard that's operable as both a “contact” smartcard and a “contactless” smartcard, once a user has successfully biometrically authenticated upon ingress into a controlled facility.
It is another object, to provide a smartcard which includes a communications subsystem comprising an RFID (antenna and/or transponder) loop for providing contactless functions, but only after a user has successfully authenticated themselves upon ingress contact with an ingress smartcard reader.
It is another object, to provide a smartcard with includes an optional security feature that triggers an alarm and/or exception condition if the RFID loop is (erroneously) already enabled upon a user's ingress to a controlled facility.
It is yet another object, to provide an operationally adaptable smartcard, which can by default execute biometric authentication on the smartcard, and/or which can alternatively defer biometric authentication to an ingress smartcard reader (or other authentication device) equipped with biometric authentication capabilities.
The present invention discloses and provides improvements in technology for combination (aka, “hybrid” contact/contactless) smartcards. The present invention adds biometric fingerprint recognition capability to such multi-function smartcards, without adding a conventional battery (i.e., the card is batteryless). Before the present invention, conventional combination contact/contactless smartcards did not implement biometrics, despite that biometric security is increasingly sought by commercial, military, government, and other security-conscious buyers.
The present invention allows an authorized, enrolled user to effectively “power up” the combination smartcard while biometrically authenticating as a “contact” smartcard on ingress to a controlled facility, simultaneous with user card insertion into an ingress contact card reader, allowing the batteryless smartcard of the present invention to draw electrical power from the reader, via power contacts aboard the smartcard. Alternatively, if the contact/contactless smartcard of the present invention is presented to an ingress smartcard reader which has built-in biometric authentication capabilities, the present invention can either (1) defer execution of biometric authentication to the biometrically authenticating smartcard reader; and/or (2) send a message to the biometrically authenticating smartcard reader stating that “biometric authentication has already been performed”; and/or (3) take any other action specified by the controlled facility.
When first used at the controlled facility (e.g., at door entry card reader, or at a computer workstation card reader) the user must authenticate themselves (e.g., by biometrics such as fingerprints, etc.) so as to enable the use of their smartcard. This action both enables the contactless use of the smartcard and the biometrically-protected functions of the card when used as a contact smartcard (if any).
Again, it is emphasized, the contact/contactless smartcard of the present invention is indifferent as to whether it performs biometric authentication on the card, and/or on an external device. (e.g., an ingress smartcard reader) performs external biometric authentication.
Once authentication has been successfully completed, the combination smartcard is enabled to conduct contactless functions until subsequently disabled. In summary, the card can be disabled by contact or contactless use at an egress point in the controlled facility, or by “time-out” or other oversight mechanism. The mechanism by which the contactless functions are enabled or disabled can be by electrically switching the function on the card under the control of the biometric authentication circuitry, or, by denying contactless access functions at the security control panel when the user is detected to be out of the controlled facility or “time-out” has occurred.
When the user and their card leave the controlled facility or exit from predefined perimeters of the controlled facility—e.g., at a door equipped with a smartcard reader—the facility access control system (“security control panel”) receives a signal from the card reader that the user has exited and suspends the cardholder's access privileges until the user is biometrically re-authenticated. Either of these two methods—either electronically enabling the card, or suspending access privileges by means of signals sent by the control panel—can be used to effectuate desired security functions. Optionally, both methods can be employed to provide additional security in the form of a redundant check.
Other advantages of the present invention are that it uses no batteries and enables a smartcard to perform both biometric-enabled “contact” access control functions in an ingress card reader or other facility contact card readers, as well as perform “contactless” functions within the facility, once contactless functions are appropriately enabled.
Brief Description of the Drawings:
Referring now to
This card is enabled by an enrolled, authorized user presenting one or more “biometric credentials” by pressing their enrolled fingerprint(s) onto fingerprint sensor chip 30 situated on biometric authentication module 18. As is well-known in the art of biometric fingerprint authentication (e.g. such as disclosed in U.S. Pat. No. 4,582,985 to Lofberg), if the presented fingerprint is authenticated and verified as an enrolled fingerprint, module 18 generates and sends an actuating (enabling) signal (signifying “successful authentication completed”) to smartcard chip 20, thereby enabling standard smartcard functions. Biometric authentication module 18 performs fingerprint authentication (data processing, memory storage/retrieval, and other inherent functions) by means of its' embedded integral biometric data processor 32. Smartcard chip 20 can perform its' standard smartcard functions by means of its' embedded integral smartcard data processor 22. Alternatively, both processors could be implemented in the same common data processor (e.g., as described by U.S. Pat. No. 6,474,558 to Reiner, described herein).
The access control system offers overriding security, control, and monitoring. The system can be organized to monitor and control access to any or all of the facility's access events shown in
In summary,
In operation, upon entry into a controlled facility with an access control panel 56, the user with smartcard 52 authenticates his/her identity at card reader 54. This successful authentication event triggers a request for access privileges from access control panel 56. Arrow 58 represents the communications path by which this event is triggered. Access control panel 56 looks up the privileges of the user of card 52, which may include user's level of clearance, for example, and determines if they include granting access to the door (shown open) next to card reader 54 and contactless workstation 72. If access to the door at reader 54 is granted, then this door can be opened. If access to workstation 72 is allowed by the access control panel 56, then the presence of the card at the contactless reader at workstation 72 will cause the workstation to become accessible. Workstation 62 represents and example of equipment that requires a higher degree of security, requiring the user to biometrically authenticate before use. Because workstation 62 has a contact smartcard reader, the user can be required to biometrically authenticate a finger in order to gain access.
Upon the egress of card 52 (as originally shown in
It is easy to see that many different control scenarios can be implemented, from simple to complex, using one control panel (shown) or multiple control panels (not shown).
It may be sufficient for the card to provide an electrically-enabled contactless function, or to provide an access control panel mechanism to control the acceptance of the contactless card as described above. However, for additional security, both electronically-controlled contactless functions and access control panel capabilities may be combined in the same system. This type of customizable security system overlay provides redundant control of the contactless functions, in case one or the other security mechanisms fail or are defeated by an adversary.
In more detail, it can be observed that the user faces additional security control points in this combined “belt and suspenders” model. If card 52 fails to be disabled electronically within the card, then the access control system will still prevent its' unauthorized use. Conversely, if the access control panel fails to disable the card's acceptance (i.e., false acceptance) at the workstations 62 and 72, then the facility can still be protected by the electronic disablement of the contactless functions within the card.
It is important to note, that only a few configurations of the present invention are explicitly shown herein, but the present invention is not limited only to explicit configurations discussed herein. Additionally, it is important to note, while only “one user” or “one biometrically authenticated” user are often referred to herein, any number of users can be enrolled in their own smartcards, and all such users can be enrolled in any particular controlled facility. Furthermore, each card can have one or more users enrolled, where applicable. Also, the inventor anticipates that one or more other types of biometric sensors may be usable in the present invention, e.g., such as a biometric voiceprint sensor, or any other biometric sensor which can be implemented in a card-sized form factor.