Design and Experimental Analysis of Revocable Public Key Encryption with Equality Test in Cloud Security
A revocable public key encryption with equality test scheme is proposed for the potential security threats.The trapdoor contains a long-term private key and a private time key.The user is responsible to periodically update the private time key.When he/she wants to revoke the cloud server's test right,he/she only needs to stop distributing the private time key to the cloud server.Furthermore,the private time key can be transmitted through the public channel,which reduces the cost of channel establishment.Finally,the performance and simulation experiment of this scheme are analyzed.The result shows that the proposed scheme has higher security and better computational efficiency while achieves revocation of authorization.
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