Beijing Smartchip Microelectronics Technology Comp

State Grid Corporation of China

State Grid Information & Telecommunication Group

Jie Gan

Xiaoke Tang

Liang Liu

Zhe Zhang

Yubo Wang

Yi Hu

Xiaobo Hu

Song Cheng

Dongyan Zhao

Zhongqiang Dun

Tianyu Yan

Yanyan Yu

Bingrong Cui

Shiping Zang

Yinzi Tu

Disclosed in the embodiments of the present invention are a security auditing system and a method for same. The security auditing system comprises an eSIM module. The eSIM module is configured to: on the basis of pre-stored auditing rules, perform a security check on each received network connection request; if the security check is passed, determine said network connection request to be a legitimate request and allow the main control terminal that sent the network connection request to perform mobile network connection; and if the security check is not passed, determine the network connection request to be an illegitimate request and prohibit the main control terminal that sent the network connection request from performing mobile network connection.

Security auditing system and method

Disclosed are an elliptic curve point multiplication operation method and apparatus. The elliptic curve point multiplication operation method comprises ordered point multiplication and point addition operations. In a point addition operation process, when scanning that a current bit of a scalar K is not 0, a true point addition operation is executed, and when scanning that the current bit of the scalar K is 0, an equivalent point conversion operation is executed; the result of the true point addition operation and the result of the equivalent point conversion operation are stored in an identical register file, the register file comprising multiple registers. According to the elliptic curve point multiplication operation method and apparatus, side channel analysis and security error attack can be effectively resisted.

Elliptic curve point multiplication operation method and apparatus

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Beijing, China

Jie Gan