Protocol for internal exchange of data between applications of a portable multi-application object and corresponding portable multi-application object

   
   

The invention relates to a protocol for exchanging data between applications of a portable multi-application object, such as a microprocessor or smart card. An internal communications interface is implanted in the nonvolatile memory of the smart card. Given a message sending command and message reception command, a source application attribute (E-ID) is assigned a) to an application, and a target application attribute (R-ID) is assigned b) to at least one other application. The exchange of information messages (MSG) c) is done between source and target applications by means of the communications interface used as an intermediary. The invention is applicable to the management of portable multi-application objects, such as processor cards, PCMCIA cards, or the like.

La invención se relaciona con un protocolo para intercambiar datos entre los usos de un objeto portable del multi-uso, tales como un microprocesador o una tarjeta elegante. Un interfaz de comunicaciones interno se implanta en la memoria permanente de la tarjeta elegante. Dado un mensaje que envía comando de la recepción del comando y del mensaje, una cualidad del uso de fuente (E-ID) se asigna a) a un uso, y una cualidad del uso de la blanco (LIBRADA) se asigna b) por lo menos a un otro uso. El intercambio de los mensajes de la información (MSG) c) se hace entre la fuente y los usos de la blanco por medio del interfaz de comunicaciones usado como intermediario. La invención es aplicable a la gerencia de los objetos portables del multi-uso, tales como tarjetas del procesador, de las tarjetas de PCMCIA, o de los similares.

 
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