Nagra Thomson Licensing

Olivier Condemine

A method involving a mode for detecting the protocol implemented within and by a portable object. After transmission of a response upon turning on the portable object, an initial signal is received from the interface device. The initial signal is sampled according to at least one of the first and second speeds associated with the first and second respective protocols. In the portable object, at least one sample of a resulting sampling signal is compared to at least one key protocol condition proper to one of the first and second protocols. According to the result of the comparison, the data exchanged according to one of the first or second communication protocols is processed in the portable object.

Transmission protocol automatic detection method for a portable object such as a chip card or a chip key

The customizing of a smartcard chip with a complete software begins with masking a smartcard chip by storing a first part of the software. The first part of the software, when executed, is enabled to input unlocking data at an input port of the smartcard chip, to use the unlocking data to decrypt encrypted data stored in the smartcard, and to store the decrypted data in the smartcard memory. Masking of the smartcard chip further comprises storing encrypted customization software. The customization software, when executed, is enabled to input data and to store the input data in the smartcard memory. After decrypting and executing the customization software; the second part of the software is input and stored in the smartcard, enabling the whole software on the smartcard.

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Paris, France

Olivier Condemine