在随机问答器模型下讨论了签名具有某种特定形式的签名体制的安全性。
The security of the signature schemes whose signatures have specific form is discussed in the random oracle model.
对分组密码的工作模式进行了攻击，结果表明如果攻击者能询问电码本（ECB）问答器，则很容易攻破明密文分组连接模式（PCBC）；
We show that when the attacker has access to an electronic codebook(ECB)oracle, the plaintext cipher block chaining mode(PCBC) can be easily attacked;
该文介绍了如何将角色反演算法的思想用在多信息源多语种问答系统中来构建句法分析器。
This paper introduces how to use the concept of Role Inverse Algorithm in order to build syntactic parser in the various information resources based multi-lingual question answering system.
该文介绍了如何将角色反演算法的思想用在多信息源多语种问答系统中来构建句法分析器。
This paper introduces how to use the concept of Role Inverse Algorithm in order to build syntactic parser in the various information resources based multi-lingual question answering system.
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