Three attacks on Yu Gang et al's scheme to show that their forward secure proxy-signcryption scheme based on identity is insecure.
给出了三种攻击并指出于刚等人提出的前向安全的基于身份的代理签密方案是不安全的。
Ningbo Qixin Green Golf Club is designed by Mr. Yu Gang, and constructed by Beijing New Nature Golf Course Construction co. Limited.
宁波启新绿色高尔夫球场由余钢先生规划设计，新自然高尔夫球场有限公司施工建造。
Ningbo Qixin Green Golf Club is designed by Mr. Yu Gang, and constructed by Beijing New Nature Golf Course Construction co. Limited.
宁波启新绿色高尔夫球场由余钢先生规划设计，新自然高尔夫球场有限公司施工建造。
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