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Method of processing data protected against fault injection attacks and associated device

机译:处理防止故障注入攻击的数据的方法及相关设备

摘要

A method of cryptographic processing of data (X), in particular a method protected against fault injection attacks, and an associated device. The processing includes at least one transformation (100, 1001-1006) of an input data item (s) into a result data item (s′). In this case the method includes a step (E204) of verifying the transformation including the following steps:obtaining (E206) a first data item (DV(s′)) that is compressed by applying a compression operation (110, MDV, ADV) to the result data item (s′);obtaining (E208) a second compressed data item (DV(s)) that is compressed by applying the compression operation (110, MDV, ADV) to the input data item (s);determining (E210) a verification data item (DV(s)′) by applying the transformation (100, 1001-1006) to the second compressed data item (DV(s)) and;comparing (E212) the verification data item and the first compressed data item.
机译:数据(X)的密码处理方法,特别是防止故障注入攻击的方法,以及相关的设备。该处理包括对输入数据项的至少一个变换( 100、100 1 - 100 6 )( s)转换为结果数据项(s')。在这种情况下,该方法包括验证转换的步骤(E 204 ),包括以下步骤: 获得(E 206 )通过应用压缩操作( 110 ,MDV,ADV)进行压缩的第一数据项(DV(s')) )到结果数据项(s'); 获得(E 208 )第二个压缩数据项(DV( s))通过将压缩操作( 110 ,MDV,ADV)应用于输入数据项进行压缩; 通过应用变换( 100,100 1 -,确定(E 210 )验证数据项(DV(s)') 100 6 )到第二个压缩数据项(DV),并且; 比较(E 212 )验证数据项和第一个压缩数据项。

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