基于能量攻击的FPGA克隆技术研究
发布时间：2019-03-27 18:22
【摘要】：针对FPGA克隆技术展开研究,指出其关键问题在于对加密密钥的攻击,并以Xilinx公司7系列FPGA为列,讨论了采用AES-256 CBC模式解密条件下的攻击点函数选择方法,通过单比特功耗模型实施差分能量攻击,成功恢复了256 bit密钥。同时,针对不可直接代入密钥检验正确性的问题,设计了一种基于DPA攻击相关系数极性的检验方法,避免了密钥错误引起FPGA错误配置,实验表明,该方法能够有效消除相关系数的"假峰"现象。
[Abstract]:Based on the research of FPGA cloning technology, it is pointed out that the key problem lies in the attack on encryption key, and the method of selecting attack point function under the condition of decryption in AES-256 CBC mode is discussed based on the FPGA of Xilinx Company's 7 series, and the method of selecting attack point function is discussed in this paper. The differential energy attack is carried out through the single bit power consumption model, and the 256 bit key is recovered successfully. At the same time, in order to check the correctness of non-direct substitution key, a method based on polarity of correlation coefficient of DPA attack is designed to avoid the misconfiguration of FPGA caused by key error. This method can effectively eliminate the phenomenon of "false peak" of correlation coefficient.
【作者单位】： 解放军信息工程大学;
【分类号】：TN918.4;TN791
，
本文编号：2448433
[Abstract]:Based on the research of FPGA cloning technology, it is pointed out that the key problem lies in the attack on encryption key, and the method of selecting attack point function under the condition of decryption in AES-256 CBC mode is discussed based on the FPGA of Xilinx Company's 7 series, and the method of selecting attack point function is discussed in this paper. The differential energy attack is carried out through the single bit power consumption model, and the 256 bit key is recovered successfully. At the same time, in order to check the correctness of non-direct substitution key, a method based on polarity of correlation coefficient of DPA attack is designed to avoid the misconfiguration of FPGA caused by key error. This method can effectively eliminate the phenomenon of "false peak" of correlation coefficient.
【作者单位】： 解放军信息工程大学;
【分类号】：TN918.4;TN791
，
本文编号：2448433
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