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最近,安全牛网站~([1])及相关新闻连续报道了若干突破网络物理隔离限制的攻击方法。2013年12月,计算机科学家成功从GNUPG(Open PGP标准的一种常见实现)加密的电子邮件中提取出了4096位RSA密钥。研究者利用三星Note2手机从30厘米远的地方(手机麦克对准联想T61风扇出口)捕捉计算机CPU解码加密信息时的高频声音,然后利用边信道攻击技术(通过采集加密电子设备在运行中的时间消耗、功率消耗或电磁辐射消耗等边缘信息的差异性进行攻击的手
Recently, a number of breakthroughs in physical network isolation methods have been reported continuously by security cow websites (1) and related news. In December 2013, computer scientists successfully extracted 4096-bit RSA keys from GNUPG (a common implementation of the Open PGP standard) encrypted email. The researchers used a Samsung Note2 phone to capture the high-frequency sound from a computer CPU decoding encrypted information from a distance of 30 cm (Microphone Mike aligns with the Lenovo T61 fan outlet) and then exploit side channel attack techniques (by collecting encrypted electronic devices in operation Time-consuming, power-consuming or electromagnetic radiation consumption and other differences edge information to attack the hands