DESIGN AND IMPLEMENTATION OF KEY ESCROW TOOLS FOR LAWFUL INTERCEPTION IN 5G NETWORKS

In an increasingly digitalized world, the increasing amount of traffic exchanged among users could be used for different crimes. This scenario needs a solution given by the introduction of Lawful Interception (LI) whic allows the authorized entities (LEAs) to intercept the suspicious traffic in order to prevent or stop malicious actions. After its introduction, LI needed to be adapted to the new defined 5G mobile network generation and to cope the intoduced challenges, like end-to-end encryption. Among different studied solutions, Key Escrow was introduced to allow a trusted third entity to retrieve the key to decrypt the target communication, if authorized. This work implements and tests Key Escrow tools for encryption and decryption operations performed on intercepted and processed traffic.