A STADY ON EVALUATION METHOD FOR STREAM CIPHER

在本研究中，我提出了针对WPA-TKIP的伪造方法，这是一个用于无线局域网的流密码安全协议，以评估其安全性。先前的方法仅对支持IEEE802.11e QoS功能的网络成功。首先，我通过将任何数据包修改为QoS数据包来消除此条件。其次，改进了伪造方法的执行时间，使DHCP-DNS攻击，这是一种接受伪造的DNS服务器的IP地址，在现实环境中。

In this research, I proposed falsification methods against WPA-TKIP, which is a security protocol for wireless LAN with stream cipher, for evaluating its security. Previous method succeeds only for a network that supports IEEE802.11e QoS features. First, I removed this condition by modifying any packet to QoS packet. Second, I improved the execution time of the falsification method, and it enables DHCP-DNS attack, which is a method to accept forgery IP address of DNS server, in a realistic environment.