Modes of Operation of Stream Ciphers
Modes of Operation of Stream Ciphers
复制标题
流密码的操作模式
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
J. Golic
中科院分区：
文献类型：
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作者：
J. Golic
本文提出了一种一般的带记忆流密码，其中每个密文符号既依赖于当前密文符号又依赖于前一个明文符号，每个明文符号也依赖于当前密文符号和前一个密文符号。给出了如何将任意密钥流生成器转换为带记忆的流密码，并讨论了它们的安全性。提出了如何从任何带记忆的安全流密码构造安全的自同步流密码、带密钥的哈希函数、哈希函数和分组密码。因此，可以获得新的和不寻常的设计，例如仅基于时钟控制移位寄存器的分组密码和（密钥）散列函数的设计。
A general stream cipher with memory in which each cipher-text symbol depends on both the current and previous plaintext symbols, as well as each plaintext symbol depends on both the current and previous ciphertext symbols, is pointed out. It is shown how to convert any keystream generator into a stream cipher with memory and their security is discussed. It is proposed how to construct secure self-synchronizing stream ciphers, keyed hash functions, hash functions, and block ciphers from any secure stream cipher with memory. Rather new and unusual designs can thus be obtained, such as the designs of block ciphers and (keyed) hash functions based on clock-controlled shift registers only.