选择密文攻击(chosen-ciphertext attack)和选择明文攻击是相似的，除非伊夫选择一些密文解密后组成密文/明文对。如果伊夫访问了鲍勃的计算机，这种攻击就会发生。
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Chosen-ciphertext attack 选择密文攻击
Ciphertext-only attack 唯密文攻击 ; 密文攻击 ; 密文攻击法 ; 纯密文攻击
Chosen ciphertext attack 选择密文攻击
decipherable ciphertext attack 可解密密文攻击
Chosen-Ciphertext Attack 2 选择密文安全
adaptive chosen ciphertext attack 自主选择消息攻击
adaptive chosen-ciphertext attack 自适应选择密文攻击
ciphertext block attack [通信] 密码电文分组破译
Its (security) is based on the intractability of the integer factorization problem as RSA, and it is able to resist the chosen-ciphertext attack against RSA and easy to be implemented.
它与RSA算法相似，其安全性基于大数因式分解的难度，能够抵抗对于RSA的选择密文攻击，并且易于软件实现。
Because the sensitive data is encrypted, any direct attack on the database file analysis, can only see the ciphertext.
由于敏感数据被加密，任何直接对数据库文件进行分析的攻击方式，都只能看到密文。
Under the assumption that the random high-density knapsack problem is infeasible, the proposed schemes are provably secure against ciphertext-only attack.
在高密度随机背包困难性假设下，可以证明方案在唯密文攻击下是安全的。
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