选择密文攻击(chosen ciphertext ) 选择明文-密文对攻击(chosen plaintext-ciphertext ) 无条件安全(unconditional security) ..
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选择明文攻击 Chosen-plaintext attack ; chosen plaintext
选择明文-密文对攻击 chosen plaintext-ciphertext
自适应选择明文攻击 adaptive-chosen-plaintext attack
指出了这两种密码系统存在的缺陷,并且成功地实施了选择明文攻击。
The drawbacks of the two chaotic cryptosystems are pointed out respectively, and chosen plaintext attacks are carried out successfully.
但仍存在一些隐患,例如:重放攻击、密码猜测、会话中选择明文攻击等等。
But it still has some security hidden troubles, for instance: replay attack, password guessing, inter-session chosen plaintext attacks.
该文提出一个高效的全序有向传递签名方案,并证明该方案在选择明文攻击下是安全的。
In this paper, an efficient total ordering directed transitive signature scheme is proposed and its security against adaptive chosen-message attack is proved.
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