Patent ID: 9225696
Filing Date: 2015-12-29
Classification: G06F,H04L

Abstract:
1. An access method for an electronic apparatus comprising a processor and a storage area including data for a plurality of registered users of the electronic apparatus, the method comprising: storing a plurality of encrypted partitions in the storage area of the electronic apparatus, with each encrypted partition corresponding to a registered user; receiving a secure element from a registered user, with the secure element storing a user key for decrypting an encrypted partition corresponding to the registered user providing the user key; establishing a temporary secure channel between the secure element and the electronic apparatus; authenticating in the electronic apparatus the registered user associated with the corresponding encrypted partition; and transmitting an identification of the registered user authenticated in the electronic apparatus to the secure element, and transmitting the user key of the authenticated registered user from the secure element to the electronic apparatus over the temporary secure channel; wherein the electronic apparatus is programmed to decrypt the encrypted partition of the authenticated registered user with the user key transmitted over the temporary secure channel; wherein the encrypted partition of the authenticated registered user is not accessible to the authenticated user or to any other authenticated users in the electronic apparatus if the user key of the authenticated registered user is not transmitted to the electronic apparatus; wherein the secure element comprises an IC Card of a telecom operator and the telecom operator blocks the IC Card to deny a decryption of the encrypted partition, with the block being executed on a user's request and through OTA messaging.