Method, apparatus, memory card, and system for establishing a secure connection between a wireless communication apparatus and a data communication apparatus based on a wireless application protocol. The wireless communication apparatus is provided with contact means for receiving information from a separate unit provided with memory means. The memory means comprising information to control the access of the wireless communication apparatus through a wireless communication network connected to said data communication apparatus.

 
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< Lawful interception of end-to-end encrypted data traffic

> Deriving a symmetric key from an asymmetric key for file encryption or decryption

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