SECURITY METHOD AND DEVICE FOR MANAGING ACCESS TO MULTIMEDIA CONTENTS

The invention concerns a method for managing transmission of multimedia contents on a mobile terminal (2) equipped with a security module (3), the multimedia contents being transmitted in encrypted form from a broadcasting server (1) and via a communication network (4). The method includes the following steps: a) sending to the mobile terminal (2) rights of use data for at least one multimedia content; b) storing said rights of use data in the security module (3) of the mobile terminal (2); c) generating a sequence of encryption/decryption keys, the sequence of decryption keys being generated from the rights of use data stored in the security module (3); d) transmitting the multimedia content to the mobile terminal (2), the content being successively encrypted with the keys of the generated sequence of encryption keys; e) receiving the multimedia content by the mobile terminal and decrypting the multimedia content from the decryption keys of the sequence of keys generated in the security module of the mobile terminal.