METHOD FOR TRANSFERRING USER DATA BETWEEN TWO INSTANCES OF AN APPLICATION

摘要

The invention is a method of transferring user data from a first instance of a package to a second instance of another package corresponding to an upgraded version. The first instance stores the user data in its own storage format. The two instances are embedded in a secure element. The method comprises the steps of:;establishing a direct channel within the portable secure device between the two instances,;the first instance gets in a locked state where it refuses any service requests except the communication with the second instance, prepares a pack by formatting the user data in a transport format, and automatically sends the pack to the second instance through the direct channel,;the second instance retrieves the user data from the pack and stores the user data in another storage format

主权项

1. A method for transferring user data from a first instance of a first package to a second instance of a second package corresponding to an upgraded version of said first package, said first instance being able to get in a locked state where said first instance refuses all service requests except the communication with said second instance,
wherein said first instance stores the user data in a first storage format, wherein said first and second instances are embedded in a secure element, in that wherein said first and second instances comprise a key and wherein said method comprises the following steps:
said first and second instances perform a mutual authentication using said key and establish a direct channel within the portable secure device only if the mutual authentication is successful,said first instance prepares a pack by formatting said user data in a transport format and automatically sends the pack to said second instance through the direct channel, andsaid second instance retrieves the user data from the pack and stores the user data in a second storage format.