A new membership revocation method based on the ACJT group scheme was provided.
在ACJT群签名方案的基础上，提出一个新的成员撤销方案。
In this paper, an improvement of ACJT group signature scheme and its member revocation is made by improving the efficiency remarkably while not reducing the security.
文章对ACJT群签名及其成员撤消方案进行了一些改进，提出了一个新的方案，在保证不影响其安全性的前提下使其效率得到显著提高。
Finally, we analyze the efficiency of the proposed sc heme and show that the scheme is more efficient than group signature schemes such as ACJT scheme in complexity.
最后，我们分析该方案的效率，与acjt等几种方案相比在计算效率上有明显的提高。
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