Abstract Continuous variable quantum key distribution (CV-QKD) is a promising emerging technology for the of secure keys symmetric encryption. It can be readily implemented using commercial off-the-shelf optical telecommunications components. A requirement CV-QKD receiver ability to measure states at correct time instance and rate orthogonal observables, referred as synchronization. We propose ...

In 1984, Shamir [1] introduced the concept of an identity-based cryptosystem. In this system, each user needs to visit a key authentication center (KAC) and identify him self before joining a communication network. Once a user is accepted, the KAC will provide him with a secret key. In this way, if a user wants to communicate with others, he only needs to know the “identity” of his communicatio...