Kitak Kim, Jong Hwan Park and Dong Hoon Lee Selectively chosen ciphertext security in threshold public-key encryption Security and Communication Networks 9
We provide a new threshold public-key encryption scheme that is secure under the selectively chosen ciphertext security model. Security of our proposed scheme is proven to be secure under the hardness of a new modified bilinear Diffie-Hellman assumption. Our construction relies on the special property of Strong Diffile-Hellman tuples.
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