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1.发明授权Method of executing an algorithm for protecting an electronic device by affine masking and associated device 有权执行通过仿射掩蔽和相关设备保护电子设备的算法的方法公开(公告)号：US08577025B2
公开(公告)日：2013-11-05
申请号：US12891895
申请日：2010-09-28
IPC分类号： H04L29/06
CPC分类号： G06F21/77 , G06F21/75 , G06F2207/7233 , G06F2221/2121 , H04L9/002 , H04L9/0869 , H04L9/0891 , H04L2209/04
摘要： A method of executing an algorithm includes protecting an electronic device by affine masking. The electronic device executes operations on secret variables x, the secret variables x being binary vectors of a given size N other than zero. The method further includes replacing the secret variables x using an affine masking operation, by the following affine function: m(x)=R.x+r, where R is a random invertible binary matrix with N rows and N columns and r is a random binary vector of size N.
摘要翻译： 执行算法的方法包括通过仿射掩蔽保护电子设备。 电子设备对秘密变量x执行操作，秘密变量x是除零之外的给定大小N的二进制向量。 该方法还包括使用仿射掩蔽操作通过以下仿射函数代替秘密变量：m（x）= R.x + r，其中R是具有N行和N列的随机可逆二进制矩阵，r是 大小为N的随机二进制向量
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公开(公告)号：US08429417B2
公开(公告)日：2013-04-23
申请号：US12444885
申请日：2007-10-03
IPC分类号： G06F21/00
CPC分类号： G06F21/52 , G06F11/1004 , G06F21/50 , G06F21/556 , H04L9/003 , H04L9/3234 , H04L9/3249 , H04L63/123 , H04L2209/20 , H04L2209/34
摘要： The invention relates to a method for protecting a sensitive operation by checking the integrity of at least a subset of the data manipulated by the sensitive operation. Data to be checked are divided into blocks, an intermediate integrity check value being computed for each block, the intermediate integrity check values being computed in random order. The invention also relates to a cryptographic device wherein at least one sensitive operation of the cryptographic device is protected by a method according to the invention.
摘要翻译： 本发明涉及一种通过检查由敏感操作操纵的数据的至少一个子集的完整性来保护敏感操作的方法。 要检查的数据被分成块，为每个块计算中间完整性检查值，中间完整性检查值以随机顺序计算。 本发明还涉及一种密码装置，其中通过根据本发明的方法保护密码装置的至少一个敏感操作。
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公开(公告)号：US08402287B2
公开(公告)日：2013-03-19
申请号：US12282210
申请日：2007-03-23
申请人： David Vigilant , Guillaume Fumaroli
发明人： David Vigilant , Guillaume Fumaroli
IPC分类号： G06F21/00
CPC分类号： G06F7/723 , G06F2207/7238 , H04L9/003 , H04L2209/04
摘要： The invention relates to a cryptographic mechanism and to a cryptographic device incorporating such cryptographic mechanism. The cryptographic mechanism offers a better resistance to side channel attacks than that of known cryptographic mechanisms by incorporating a new type of masking mechanism.
摘要翻译： 本发明涉及一种加密机制以及包含这种密码机制的密码装置。 通过结合一种新型的掩蔽机制，加密机制提供了比已知密码机制更好的抵抗侧面信道攻击的能力。
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公开(公告)号：US08397151B2
公开(公告)日：2013-03-12
申请号：US12444884
申请日：2007-10-03
CPC分类号： H04L1/0061
摘要： The invention relates to a method for checking the integrity of a set of data packets received by a receiving communication device from a sending communication device, the data packets of the set being received in unpredictable order. The invention also relates to a communication device implementing a method according to the invention, in particular to a smart card.
摘要翻译： 本发明涉及一种用于从发送通信设备检查由接收通信设备接收的一组数据分组的完整性的方法，该组的数据分组以不可预测的顺序被接收。 本发明还涉及实现根据本发明的方法，特别是智能卡的通信设备。
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公开(公告)号：US20100103830A1
公开(公告)日：2010-04-29
申请号：US12444884
申请日：2007-10-03
IPC分类号： H04L12/26
CPC分类号： H04L1/0061
摘要： The invention relates to a method for checking the integrity of a set of data packets received by a receiving communication device from a sending communication device, the data packets of the set being received in unpredictable order. The invention also relates to a communication device implementing a method according to the invention, in particular to a smart card.
摘要翻译： 本发明涉及一种用于从发送通信设备检查由接收通信设备接收的一组数据分组的完整性的方法，该组的数据分组以不可预测的顺序被接收。 本发明还涉及实现根据本发明的方法，特别是智能卡的通信设备。
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公开(公告)号：US20100077225A1
公开(公告)日：2010-03-25
申请号：US12444885
申请日：2007-10-03
CPC分类号： G06F21/52 , G06F11/1004 , G06F21/50 , G06F21/556 , H04L9/003 , H04L9/3234 , H04L9/3249 , H04L63/123 , H04L2209/20 , H04L2209/34
摘要： The invention relates to a method for protecting a sensitive operation by checking the integrity of at least a subset of the data manipulated by the sensitive operation. Data to be checked are divided into blocks, an intermediate integrity check value being computed for each block, the intermediate integrity check values being computed in random order. The invention also relates to a cryptographic device wherein at least one sensitive operation of the cryptographic device is protected by a method according to the invention.
摘要翻译： 本发明涉及一种通过检查由敏感操作操纵的数据的至少一个子集的完整性来保护敏感操作的方法。 要检查的数据被分成块，为每个块计算中间完整性检查值，中间完整性检查值以随机顺序计算。 本发明还涉及一种密码装置，其中通过根据本发明的方法保护密码装置的至少一个敏感操作。
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公开(公告)号：US20090092245A1
公开(公告)日：2009-04-09
申请号：US12282210
申请日：2007-03-23
申请人： Guillaume Fumaroli , David Vigilant
发明人： Guillaume Fumaroli , David Vigilant
IPC分类号： H04L9/28
CPC分类号： G06F7/723 , G06F2207/7238 , H04L9/003 , H04L2209/04
摘要： The invention relates to a cryptographic mechanism and to a cryptographic device incorporating such cryptographic mechanism. The cryptographic mechanism offers a better resistance to side channel attacks than that of known cryptographic mechanisms by incorporating a new type of masking mechanism.
摘要翻译： 本发明涉及一种加密机制以及包含这种密码机制的密码装置。 通过结合一种新型的掩蔽机制，加密机制提供了比已知密码机制更好的抵抗侧面信道攻击的能力。
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