Abstract: The invention relates to a method for producing a microcircuit card, comprising the following steps: a step for positioning a microcircuit in an open-cavity mould, and a step for depositing a material in the open cavity of the mould, the material being sufficiently poorly viscous for coating at least indirectly at least part of the microcircuit.
Abstract: An electronic entity such as a chip card containing time measurement elements includes a capacitative component (20) having a leak through the dielectric area thereof and being able to be charged when the entity is coupled to an electric power source and a member (22) for measuring the residual charge of the capacitative component which is implemented in a subsequent measure.
Abstract: An exchange of information between a communication entity e.g. a mobile telephone and the operator server upon which it is dependent, in order to carry out authentication operations by exchanging keys and using cryptography algorithms. According to the invention, an algorithm is used, comprising: algorithmic treatments using, as input data, all or part of a random number and operating keys derived from two keys, and a combined treatment using data derived from algorithmic treatments in order to provide results to enable the linkage.
Abstract: The invention concerns a contact-free microcircuit card (10) used in combination with a receiver (40) for carrying out an electronic transaction, incorporating a keyboard (12) for inputting data used during the transaction.