This ** show an implement of revocable digital signature base on digital signature now, prove its security.
基于1个网页-相关网页
The user supplies a secret key (password) to the security server to prove its identity.
用户向安全服务器提供一个秘密密钥（密码）来证明其身份。
Therefore, the key of civil liability of security fraud is taken reasonable standard of causality and prove its existence between investor's damage and fraud.
因此，证券欺诈民事责任的关键在于采用合理的因果关系标准，并以此证明投资者损害与欺诈行为之间的因果关系。
We propose a new elliptic curve key-exchange protocol, analyze its security and prove that assuming ECDDHP is hard to solve, it is a secure AK protocol.
文章设计了一个新的椭圆曲线密钥交换协议，分析了其安全性，证明了在ECDDHP难解的前提下，该协议是安全的AK协议。
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