Abstract
According to the broadcast encryption scheme couldn’t consider its security and efficiency in one model simultaneously, a full secure attribute-based broadcast encryption achieved through selective techniques was proposed. The scheme can achieve constant-size ciphertext in the standard model. By utilizing the prior techniques to prove selective security for functional encryption systems as a direct ingredient in devising proofs of full security, it is proved by combining the dual system encryption argument and the static assumptions. The analysis results show that the scheme of this paper is full secure.
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