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The cryptosystem of elliptic curve had been put forward by Miller and Koblitz solely in 1985. The cryptosystem of elliptic curve owns three special advantages in terms of recent research: 1. It has larger flexibility when it chooses groups; 2. There wouldn't be any effective sub-index arithmetic to attack it if the cryptosystem of elliptic curve is suitably chosen; 3. It has a short key. In this paper,...
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