Quantum Key:Logic behind this?

I have a project i.e. third party authentication using Quantum Key. But we are facing lot of开发者_开发知识库 problems related to hardware so now we are focusing on simulation.

So can anyone guide me what type of simulation we should use?

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Are you using BB84 to encode your information? If so, look through the stuff that Shor and Preskill to prove the security of the algorithm. If you're interested in simulating this, the libquantum project has some good libraries put together for defining qubit registers and making measurements on them.