Unconditionally Secure Encryption Under Strong Attacks
Unconditionally Secure Encryption Under Strong Attacks
复制标题
强攻击下无条件安全加密
DOI：
10.1007/978-3-540-27800-9_37
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
M. Yung
中科院分区：
文献类型：
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作者：
L. McAven;R. Safavi;M. Yung
我们开发了一种强攻击下无条件安全的单发送方单接收方加密的形式。我们考虑应对对抗目标，确保机密性和不可延展性，结合对抗能力，类似于在计算安全系统中使用的对抗能力：仅密文，选择明文和选择密文。我们将所描述的各种安全概念联系起来，并给出在各种安全概念下安全系统的密钥大小的界限。除了定义具有完美保密性的系统外，我们还考虑较弱的安全系统。
We develop a formalism for unconditionally secure single sender single receiver encryption under strong attacks. We consider coping with adversarial goals assuringsecrecyandnon–malleability, combined with adversarial power similar to those used in computationally secure systems: ciphertext only, chosen plaintext, and chosen ciphertext. We relate the various security notions described, and give bounds on the keysize for systems secure under the various security notions. In addition to defining systems with perfect secrecy,a laShannon, we consider weakerε–secure systems.