欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
利用SHACAL-2的一个17轮差分非线性区分器，结合被猜测子密钥空间分割的方法和快速傅立叶变换，提出了一种攻击33轮SHACAL-2的新方法．该方法攻击33轮SHACAL-2需要2^44的选择明文、2^296.6的33轮SHACAL-2加密和2^502次算术运算，攻击成功概率为99％．与已有的结果相比较，新攻击有效地提高了单密钥下SHACAL-2的攻击轮数．
英文摘要：
Based on a 17-round differential-nonlinear distinguisher of the SHACAL-2 encryption algorithm, a novel attack on 33-round SHACAL-2 is proposed by guessed subkey space division and Fast Fourier Transform （FFT）. Moreover, it is shown that differential nonlinear attack on 33-round SHACAL-2 requires a data complexity of about 244 chosen plaintexts, and a computational complexity of about 2^496.6 33-round SHACAL-2 encryptions and about 2^44 arithmetic operations. The success rate of this attack is about 0.99. Compared with previous results, this new attack effectively improves the numbers of attacked rounds of SHACAL-2 in a single key attack scenario.
同期刊论文项目
同项目期刊论文
期刊信息
位置：