Thales Dis France Sas

Thales Dis France Sa

Nicolas Vienne

Emmanuel Lepavec

Xavier Minette De Saint Martin

Guillaume Chi-Dan Phan

Evangelos Spyropoulos

Guillaume Phan

Dominique Bouveron

Olivier Poncelet

Provided is a method for securely diversifying a generic application stored in a secure processor of a terminal, said method comprising: Generating at the request of a manager application hosted in an application processor of said terminal, at the level of a distant server, a server challenge; Sending said server challenge to said application; Generating a first message at said application, said first message being function of said server challenge, an application challenge and an unique identifier of said application; Sending said first message to a Root-Of-Trust service hosted in a secure processor of said terminal, said Root-of-Trust service generating an attestation of said first message, said attestation guaranteeing that said first message has not been modified and originates from said secure processor; and Transmitting said attestation of said first message to said distant server in an enablement request message.

Method for securely diversifying a generic application stored in a secure processor of a terminal

The invention is a method for managing an instance of a class in a secure element embedded in a hosting machine and including a Central Processing Unit, a storage area and a virtual machine. The method comprises a step of receiving by the secure element a load file containing a binary representation of a package of the class and a step of instantiating the instance from the package and storing the instance in the storage area. The load file includes a specific component which is a custom component within the meaning of Java Card&#x2122; specifications and which contains executable data. The instance requests the execution of a subset of the executable data by directly invoking the subset of executable data through an Application Programming Interface.

Method for managing an instance of a class

The present invention relates to a method for amending the firmware of a device with limited resources, the device comprises a memory unit, and a firmware amending software, and the firmware comprises:

Method for amending the firmware of a resource constrained device

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Gemenos, France

Nicolas Vienne