Gemplus Card International

Gemplus

Other

Gilles Lisimaque

Francois Geronimi

Pierre Paradinas

Jerome Monnot

Patrice Peyret

The invention concerns a method for duplicating data contained a smart card memory in the memory of another smart card, which consists in producing for said other card another management code, another secret code. Said other management code is produced on the basis of identification data particular to the first card and also particular to the second card. For the system to operate, identification data concerning the first card are also recorded in the second card.

Process to manage data in a chip card

Releasable PCMCIA cards ( ) suitable for plugging into the slot ( ) of a micro-computer ( ). To enable the releasable plug-in card ( ) to be used as a smart card reader, it is altered in such a way that it can receive a smart card ( ). For this purpose, the releasable card ( ) includes a guide system ( ) with a shape matching that of a smart card ( ) so that the smart card is properly positioned relative to the reader. A micro-computer or PCMCIA card may thus be protected by means of a security smart card.

Plug-in removable card, forming a chip card reader for a micro-computer

A system for loading an applet and its associated use rights into a smart card having other applets with associated use rights with values that change as the application is used is provided that stores, remotely from said smart card, an applet and use rights with a predetermined initial value, associated with the applet, and has a smart card having a processing unit, and a memory unit, the memory unit being connected to the processing unit and storing a second application having use rights. The smart card may be connected to said remote storage means, and the application, having use rights with a predetermined value, may be loaded from said remote storage means into said smart card. A smart card is also provided having a processor for executing an application, a memory, connected to the processor, for storing multiple applications, including a first application having first use rights and having first values associated with the first use rights, the first value changing from a predetermined initial value with use of the first use rights, a system for loading in the smart card a second application from a remote location over an interface, the second application having second use rights, a system for storing said second application into said memory in said smart card, and a system for changing the use rights of said first application and said second application. A method of replenishing the use rights in a smart card is also provided.

System and method for loading applications onto a smart card

Method and device for updating information elements in a memory

The method is designed to increase the protection of a microcircuit-based memory card comprising at least one memory coupled to a data-processing element. When said data-processing element receives a command by a data signal external to the card, said method consists in making said data-processing element emit a ratification signal at an instant that is deferred, with respect to the instant at which its emission was prompted by the data signal, by a duration that is randomly variable in time. The disclosed method can be applied to microcircuit-based memory cards.

Method and device to increase the protection of a chip card

The card has a plastic support bearing, on at least one part of its surface, a layer of recording material and a microcircuit inserted in the plastic support. The card is made tamper-proof by the setting up of an identifier code that is characteristic of the relationship between the microcircuit and the support bearing the recording layer. This code is, firstly, recorded in the memory of the microcircuit and, secondly, detectable by analysis of the support. Any detachment of the support and of the microcircuit in which the related code has been memorized prevents the checking of the two codes by coincidence. The invention can be applied notably to high storage density cards.

Growing community of inventors

Potomac, MD, United States of America

Gilles Lisimaque