Serpent

Serpent是一種對稱式分組加密演算法,是高级加密标准(AES)的候選者之一,其順序僅次於Rijndael演算法。設計者為羅斯·安德森艾力·畢漢姆拉爾斯·克努森

Serpent
Serpent的线性混合阶段
概述
设计者羅斯·安德森艾力·畢漢姆拉爾斯·克努森
首次发布1998年8月21日1998-08-21
衍生自Square
认证AES决赛算法
密码细节
密钥长度128、192、256位
分组长度128位
重复回数32
最佳公开破解
All publicly known attacks are computationally infeasible, and none of them affect the full 32-round Serpent. A 2011 attack breaks 11 round Serpent (all key sizes) with 2116 known plaintexts, 2107.5 time and 2104 memory (as described in [1]). The same paper also describes two attacks which break 12 rounds of Serpent-256. The first requires 2118 known plaintexts, 2228.8 time and 2228 memory. The other attack requires 2116 known plaintexts and 2121 memory but also requires 2237.5 time.

与其他進入AES評選名單的演算法一樣,Serpent的區塊長度為128位元,支援的密鑰長度為128、192和256位元。

参考文献

  1. Huaxiong Wang, Hongjun Wu & Phuong Ha Nguyen. (PDF). ACISP 2011. 2011 [2018-10-24]. doi:10.1007/978-3-642-22497-3_5. (原始内容存档 (PDF)于2017-04-14).

外部連結

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