公开(公告)号：US20050099867A1

公开(公告)日：2005-05-12

申请号：US10505151

申请日：2003-02-18

申请人： Cedric Groux

发明人： Cedric Groux

IPC分类号： G06F12/02 ,  G11C7/00

CPC分类号： G06F12/023 ,  G06F2212/7211

摘要： This invention describes a storage method of a plurality of data blocks in a digital re-writable memory of semiconductors controlled by a memory manager and characterized by the following steps that consist of: randomly determining an available area, storing the data block in the area chosen in this way. This method of data storage is preferably applied to chip cards and to similar electronic modules. It prevents the reproduction of the functionalities of the card after an analysis of the contents of the memory. Furthermore, it assures a better distribution of the wearing of the memory.

摘要翻译： 本发明描述了由存储器管理器控制的半导体的数字可重写存储器中的多个数据块的存储方法，其特征在于以下步骤：随机确定可用区域，将数据块存储在所选择的区域中 通过这种方式。 这种数据存储方法优选地应用于芯片卡和类似的电子模块。 在分析存储器的内容之后，它防止卡的功能的再现。 此外，它确保更好地分配内存的佩戴。

公开(公告)号：US20050238170A1

公开(公告)日：2005-10-27

申请号：US10830063

申请日：2004-04-23

申请人： Rached Ksontini ,  Henri Kudelski ,  Cedric Groux

发明人： Rached Ksontini ,  Henri Kudelski ,  Cedric Groux

IPC分类号： H04K1/00 ,  H04N7/167

CPC分类号： H04N7/1675 ,  H04L9/0822 ,  H04L9/0833 ,  H04L2209/60 ,  H04N21/2347 ,  H04N21/2585 ,  H04N21/26606 ,  H04N21/26613 ,  H04N21/4181 ,  H04N21/44236

摘要： A method is for protecting an encrypted content, by use of at least one encryption key. The method includes generation of a temporary encryption key, encryption by the temporary key of a value allowing the determination of the encryption keys of the content, transmission of the encrypted value to a multimedia unit, and encryption and transmission of at least two cryptograms including the temporary key encrypted by an authorization key. The first cryptogram is encrypted by a first authorization key pertaining to a first security module and the second cryptogram is encrypted by a second authorization key pertaining to a group of security modules whose first security module is excluded.

摘要翻译： 一种方法是通过使用至少一个加密密钥来保护加密的内容。 该方法包括生成临时加密密钥，通过临时密钥加密允许确定内容的加密密钥的值，将加密值传输到多媒体单元，以及加密和传输至少两个密码，包括 临时密钥由授权密钥加密。 通过与第一安全模块有关的第一授权密钥对第一密码进行加密，并且通过与排除其第一安全模块的一组安全模块相关的第二授权密钥对第二密码进行加密。