公开(公告)号：US20130230170A1

公开(公告)日：2013-09-05

申请号：US13883933

申请日：2011-11-08

申请人： Hervé Chabanne ,  Julien Bringer ,  Thanh Ha Le

发明人： Hervé Chabanne ,  Julien Bringer ,  Thanh Ha Le

IPC分类号： H04L9/28

CPC分类号： H04L9/30 ,  H04L9/003 ,  H04L2209/04 ,  H04L2209/56

摘要： The invention relates in particular to a method for securing the execution of a cryptographic algorithm (ALG) against passive sniffing, the method implementing masking (MSK) of data processed by the cryptographic algorithm. The masking (MSK) of said data includes a linear encoding step such as x′=x.L+c, in which x is the data to be masked, x′ is the corresponding masked data, c is a code word included in a linear code C, and L is a matrix made up of linearly independent vectors not included in the linear code C. The invention also relates to a device (SC) implementing such a method.

摘要翻译： 本发明特别涉及一种用于保护密码算法（ALG）执行被动嗅探的方法，该方法实现了由密码算法处理的数据的掩码（MSK）。 所述数据的掩蔽（MSK）包括诸如x'= x.L + c的线性编码步骤，其中x是要被屏蔽的数据，x'是对应的屏蔽数据，c是包括在 线性码C和L是由线性码C中未包括的线性独立矢量构成的矩阵。本发明还涉及实现这种方法的装置（SC）。

公开(公告)号：US09847879B2

公开(公告)日：2017-12-19

申请号：US13883933

申请日：2011-11-08

申请人： Hervé Chabanne ,  Julien Bringer ,  Thanh Ha Le

发明人： Hervé Chabanne ,  Julien Bringer ,  Thanh Ha Le

IPC分类号： H04L29/06 ,  H04L9/28 ,  H04L9/00

CPC分类号： H04L9/30 ,  H04L9/003 ,  H04L2209/04 ,  H04L2209/56

摘要： The invention relates in particular to a method for securing the execution of a cryptographic algorithm (ALG) against passive sniffing, the method implementing masking (MSK) of data processed by the cryptographic algorithm. The masking (MSK) of said data includes a linear encoding step such as x′=x·L+c, in which x is the data to be masked, x′ is the corresponding masked data, c is a code word included in a linear code C, and L is a matrix made up of linearly independent vectors not included in the linear code C. The invention also relates to a device (SC) implementing such a method.