针对滑动窗口算法的椭圆曲线密码Cache计时攻击

基于访问驱动攻击模型，提出一种针对椭圆曲线滑动窗口算法的踪迹驱动Cache计时攻击方法，引入了方差思想判断每次窗口滑动是否查找了预计算表，提高了攻击成功率．仿真实验结果表踞：由于滑动窗口算法引入了预计算表，易遭受Cache计时攻击．精确采集NITT-192一次加密过程中窗口105次滑动的Cache时间信息即可获取完整密钥．本文的攻击方法对其他使用预计算表的公钥密码具有借鉴意义．

Cache-Timing Attack on with Sliding Elliptic Curve Cryptosystems Window Method

This paper proposes a trace driven Cache timing attack on sliding window algorithmic based on the model of trace driven attack, and introduces the variance to judge whether window sliding has accessed pre-compute table. It enhances the success rate of attack. The experiment results demonstrate that sliding window algorithmic is susceptible to Cache timing attack because of pre-compute table. Full NIST-192 bits key can be recovered by collecting 105 times window sliding in encrypting only once. The method presented here can provide some ideas for Cache tim- ing attack on other public cryptosystems using sliding window method.