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中文摘要：
在公钥密码学的强壮的安全不是足够；加密不得不以一个有效方法被完成。OAEP 或 SAEP 对特殊应用仅仅合适(e。g.key 运输) ，并且安全地搬运任何长度的消息是挑战。由混合加密激发了，我们在场完成的一条实际途径(适应地) 选择密文安全。建议计划的加密 / 解密的时间费用类似于 OAEP，消息恢复的带宽为标准安全参数是 92% ，当 RSA-OAEP 是 84% 时。Thescheme 对在随机的神谕模型的适应地选择的密文攻击也是 provably 安全的。我们断定途径在更广泛的申请是实际的。
英文摘要：
Strong security in public key cryptography is not enongh; the encryption has to be achieved in an efficient way. OAEP or SAEP is only suitable for special applications （e. g. key transport）, and securely transporting message of any length is a challenge. Motivated by the hybrid encryption, we present a practical approach to achieve the （adaptively） chosen eiphertext security. The time cost of encryption/decryption of proposed scheme is similar to OAEP and the bandwidth of message recovery is 92% for standard security parameter, while RSA-OAEP is 84%. The scheme is also provably secure against adaptively chosen ciphertext attacks in the random oracle model. We conclude that the approach is practical in more extensive application.
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