基于分布式计算的RC4加密算法的暴力破解

加密算法的安全性很大程度上取决于暴力破解的不可行性。暴力破解加密算法是密码学的研究方向之一。本文采用分布式计算方法，设计了暴力破解RCA加密算法的软件。在局域网内实现了对40位的RCA算法的暴力破解，并对软件的破解速度进行了测试。测试结果表明，40住的RCA抵抗暴力攻击的能力是很脆弱的。因此，用RCA算法加密也是很不安全的。

Brute Force Attack on the RC4 Encryption Algorithm Based on Distributed Computing

The security of encryption algorithms depends heavily on the computational infeasibility of brute force attack.Brute force attack on the RC4 encryption algorithm is one of the research directions of cryptology.Software for the brute force attack on the RC4 encryption algorithm is designed based on distributed computing.Brute force attack on the 40-bit RC4 is realized in LANs and the velocity of attacking is tested.The test results show that RC4's ability of resisting brute force attack is very weak.So RC4 encryption is very unsafe.