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1. 发明公开

EP2895959A1 PROCÉDÉ D'ACCÈS À L'ENSEMBLE DES CELLULES D'UNE ZONE MÉMOIRE À DES FINS D'ÉCRITURE OU DE LECTURE DE BLOCS DE DONNÉES DANS LESDITES CELLULES 有权转让
标题翻译：方法用于进入细胞的存储区域中安排用于写入或读取数据块在这些细胞
公开(公告)号：EP2895959A1
公开(公告)日：2015-07-22
申请号：EP13814974.5
申请日：2013-12-23
申请人： Morpho
发明人： SERE, Ahmadou , BOULET, Frédéric
IPC分类号： G06F12/14
CPC分类号： G06F12/0284 , G06F7/582 , G06F12/0292 , G06F12/1408 , G06F2212/251
摘要： The present invention relates to a method of access to the assembly of the cells of a memory area for the purposes of writing or reading blocks of data in said cells, said method comprising, for each of the access times (Ti with i = 0 to N) for accessing said cells of said memory area to be accessed, a process for determining the address (ADRj, with j = 0 to N), of the cell of the memory area to be accessed at the said access time (Ti), an address (ADRj) determined for an access time (Ti) not being determined again for another access time (Tk, k≠ j). According to the invention, said method is characterized in that said process for determining each address (ADRj) is a pseudorandom process. The present invention finds a particular relevance, for example, in any type of card, chip card, SIM card etc. which comprises a processing unit, such as a microcontroller, for manipulating cryptographic data serving for the identification and/or the authentication of a user of such a card.

2. 发明授权

EP2895959B1 PROCÉDÉ D'ACCÈS À L'ENSEMBLE DES CELLULES D'UNE ZONE MÉMOIRE À DES FINS D'ÉCRITURE OU DE LECTURE DE BLOCS DE DONNÉES DANS LESDITES CELLULES 有权转让
标题翻译：方法用于进入细胞的存储区域中安排用于写入或读取数据块在这些细胞
公开(公告)号：EP2895959B1
公开(公告)日：2016-12-14
申请号：EP13814974.5
申请日：2013-12-23
申请人： Morpho
发明人： SERE, Ahmadou , BOULET, Frédéric
IPC分类号： G06F12/02 , G06F12/14
CPC分类号： G06F12/0284 , G06F7/582 , G06F12/0292 , G06F12/1408 , G06F2212/251

3. 发明公开

EP3042334A1 PROCÉDÉ DE MISE EN PLACE DE MOYENS DE SÉCURITÉ DANS UN DISPOSITIF ÉLECTRONIQUE À MÉMOIRE, ET DISPOSITIF POUR LA MISE EN UVRE DUDIT PROCÉDÉ 有权转让
标题翻译：程序对安全装置的电子设备中提供用于实施过程中内存和设备安装
公开(公告)号：EP3042334A1
公开(公告)日：2016-07-13
申请号：EP14777706.4
申请日：2014-09-04
申请人： Morpho
发明人： SERE, Ahmadou , BERTHIER, Maël , GESLAIN, Raphaël
IPC分类号： G06F21/55 , G06F21/34 , G07F7/10 , G06F21/78
摘要： The invention relates to a method of setting up safety means in an electronic device with memory, following the receipt of a command specifying a process which must be launched by said device. The method comprises the steps of: reading the value of a confidence index stored in a counter retaining the last value stored even if the supply has been cut off; setting up of specific safety means according to the value of the confidence index read; modification of the value of the confidence index from an initial value to a modified value corresponding to a confidence accorded by the card to its environment and which is lower than that of the initial value; launching of said process, and, if the process has run to completion without interruption: modification of the value of the confidence index which, according to the process which has been implemented, results in a value of the confidence index equal to said initial value or to a confidence gain with respect to the initial value.
摘要翻译：本发明涉及一种设置的方法安全意味着电子设备具有存储器，继收据指定必须由所述装置被启动的过程的命令的。该方法包括以下步骤：读保持如果电源已被切断，即使存储的最后一个值存储在一个柜台信心指数的值; 具体的安全设置意味着gemäß的信心指数读值; 置信指数的值的修改从初始值的修改值对应于由卡到其环境给予的置信和所有其比初始值的降低; 说过程的启动，并且，如果处理已经完成运行而不会中断：置信指数的值的修改其中，雅丁于已实施的过程中，导致信心指数等于所述初始值或值到信心获得相对于初始值。

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