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1. 发明公开

EP1836640A2 MEMORY SYSTEM WITH VERSATILE CONTENT CONTROL 审中-公开
标题翻译：与对照多才多艺的表存储系统
公开(公告)号：EP1836640A2
公开(公告)日：2007-09-26
申请号：EP05855098.9
申请日：2005-12-21
申请人： SanDisk Corporation , Discretix Technologies Ltd.
发明人： JOGAND-COULOMB, Fabrice , HOLTZMAN, Michael , QAWAMI, Bahman , BARZILAI, Ron , HAGAI, Bar-el
IPC分类号： G06F21/02
CPC分类号： G06F21/79 , G06F21/31 , G06F21/6218 , G06F2221/2103
摘要： The owner of proprietor interest is in a better position to control access to the encrypted content in the medium if the encryption-decryption key is stored in the medium itself and substantially inaccessible to external devices. Only those host devices with the proper credentials are able to access the key. An access policy may be stored which grants different permissions (e.g. to different authorized entities) for accessing data stored in the medium. A system incorporating a combination of the two above features is particularly advantageous. On the one hand, the content owner or proprietor has the ability to control access to the content by using keys that are substantially inaccessible to external devices and at the same time has the ability to grant different permissions for accessing content in the medium. Thus, even where external devices gain access, their access may still be subject to the different permissions set by the content owner or proprietor recorded in the storage medium. When implemented in a flash memory, the above features result in a particularly useful medium for content protection. Many storage devices are not aware of file systems while many computer host devices read and write data in the form of files. The host device provides a key reference or ID, while the memory system generates a key value in response which is associated with the key ID, which is used as the handle through which the memory retains complete and exclusive control over the generation and use of the key value for cryptographic processes, while the host retains control of files.

2. 发明公开

EP2189922A3 Memory system with versatile content control 审中-公开
标题翻译：存储系统具有通用性内容控制
公开(公告)号：EP2189922A3
公开(公告)日：2010-06-02
申请号：EP10002604.6
申请日：2005-12-21
申请人： Sandisk Corporation , Discretix Technologies Ltd.
发明人： Jogand-Coulumb, Fabrice , Holtzman, Michael , Qawani, Bahman , Barzilai, Ron , Hagai, Bar-el
IPC分类号： G06F21/02
CPC分类号： G06F21/79 , G06F21/31 , G06F21/6218 , G06F2221/2103
摘要： The owner of proprietor interest is in a better position to control access to the encrypted content in the medium if the encryption-decryption key is stored in the medium itself and substantially inaccessible to external devices. Only those host devices with the proper credentials are able to access the key. An access policy may be stored which grants different permissions (e.g. to different authorized entities) for accessing data stored in the medium. A system incorporating a combination of the two above features is particularly advantageous. On the one hand, the content owner or proprietor has the ability to control access to the content by using keys that are substantially inaccessible to external devices and at the same time has the ability to grant different permissions for accessing content in the medium. Thus, even where external devices gain access, their access may still be subject to the different permissions set by the content owner or proprietor recorded in the storage medium. When implemented in a flash memory, the above features result in a particularly useful medium for content protection. Many storage devices are not aware of file systems while many computer host devices read and write data in the form of files. The host device provides a key reference or ID, while the memory system generates a key value in response which is associated with the key ID, which is used as the handle through which the memory retains complete and exclusive control over the generation and use of the key value for cryptographic processes, while the host retains control of files.

3. 发明公开

EP1846826A2 SECURE MEMORY CARD WITH LIFE CYCLE PHASES 审中-公开
标题翻译：生命周期各阶段安全存储卡
公开(公告)号：EP1846826A2
公开(公告)日：2007-10-24
申请号：EP06734304.6
申请日：2006-02-01
申请人： SanDisk Corporation , Discretix Technologies Ltd.
发明人： HOLTZMAN, Michael , COHEN, Baruch Boris , BARZILAI, Ron , BAR-EL, Hagai , DEITCHER, David
IPC分类号： G06F11/22
CPC分类号： G06F11/2273
摘要： A secure memory card with encryption capabilities comprises various life cycle states that allow for testing of the hardware and software of the card in certain of the states. The testing mechanisms are disabled in certain other of the states thus closing potential back doors to secure data and cryptographic keys. Controlled availability and generation of the keys required for encryption and decryption of data is such that even if back doors are accessed that previously encrypted data is impossible to decrypt and thus worthless even if a back door is found and maliciously pried open.

4. 发明公开

EP1595357A4 DEVICE AND METHOD OF MANIPULATING MASKED DATA 审中-公开
标题翻译：装置和方法用于操纵屏蔽数据
公开(公告)号：EP1595357A4
公开(公告)日：2006-03-01
申请号：EP04708426
申请日：2004-02-05
申请人： DISCRETIX TECHNOLOGIES LTD
发明人： GUERON SHAY , PARZANCHEVSKI ORI , ZUK OR
IPC分类号： G06F20060101 , G06F7/00 , G06F7/72 , G06F12/14 , H04L9/00 , H04L9/06
CPC分类号： G06F7/00 , G06F7/724 , G06F2207/7209 , G06F2207/7219 , G06F2207/7233 , H04L9/003 , H04L9/0631 , H04L2209/046
摘要： Embodiments of the invention provide a method and a device for manipulating data (108) by converting masked data in a first representation of a finite field into converted data in a second representation of the finite field (102), and manipulating the converted data (106) to obtain manipulated masked data.

5. 发明公开

EP2063376A1 Device, system and method for masking arbitrary boolean functions 审中-公开
标题翻译： Vorrichtung，系统和Verfahren zum Maskieren vonarbiträrenboolschen Funktionen
公开(公告)号：EP2063376A1
公开(公告)日：2009-05-27
申请号：EP08253591.5
申请日：2008-11-03
申请人： Discretix Technologies Ltd.
发明人： Klimov, Alexander
IPC分类号： G06F21/00
CPC分类号： H04L9/0625 , G06F21/556 , G06F21/755 , H04L9/002 , H04L2209/046
摘要： A method, device and system for protecting an arbitrary Boolean function of arbitrary number of variables, denoted N. The method may include, if N=1, protecting one or more definitions of the arbitrary Boolean function by applying a predetermined masking algorithm; and if N>1, reiteratively defining the arbitrary Boolean function of the number of variables N, in terms of intermediate functions, denoted G and H, of a fewer number of variables, N-M, where M
摘要翻译：一种用于保护任意数量的变量的任意布尔函数的方法，装置和系统，表示为N.如果N = 1，则该方法可以包括通过应用预定的掩蔽算法来保护任意布尔函数的一个或多个定义; 并且如果N> 1，则按照中间函数（表示为G和H），以较少数量的变量NM（其中M

6. 发明公开

EP1934879A2 SECURE YET FLEXIBLE SYSTEM ARCHITECTURE FOR SECURE DEVICES WITH FLASH MASS STORAGE MEMORY 有权
标题翻译：安全而又灵活的系统架构与Flash大容量存储器安全设备
公开(公告)号：EP1934879A2
公开(公告)日：2008-06-25
申请号：EP06814654.7
申请日：2006-09-13
申请人： SanDisk Corporation , Discretix Technologies Ltd.
发明人： HOLTZMAN, Michael , BAR-EL, Hagai , GREENSPAN, Ronen , SHAPIRO, Rony
IPC分类号： G06F21/00 , G06F9/445
CPC分类号： G06F21/79 , G06F21/572
摘要： A device with mass storage capability that uses a readily available non secure memory for the mass storage but has firmware (and hardware) that provides security against unauthorized copying of data. This is true even though the firmware itself is stored in the non secure mass storage memory, and therefore potentially vulnerable to hacking. An indication of the authenticity of the firmware must be present before it will be executed by the device. This protects the device contents from unauthorized duplication or tampering. Additional functionality can be added to the device with additional firmware applications, and the authenticity of those additional applications will also be verified before they will be executed. This further prevents unauthorized copying or tampering of secure content through any mechanisms that may be unscrupulously introduced. Any data within the mass storage memory may also be encrypted.

7. 发明公开

EP1547301A1 METHOD AND DEVICE OF MANIPULATING DATA IN FINITE FIELDS 审中-公开
标题翻译：方法和设备加工有限BODIES DATA
公开(公告)号：EP1547301A1
公开(公告)日：2005-06-29
申请号：EP03766605.4
申请日：2003-08-06
申请人： Discretix Technologies, Ltd.
发明人： GUERON, Shay , ZUK, Or
IPC分类号： H04L9/00 , H04L9/30 , H04L9/14 , H04L9/32
CPC分类号： G06F7/724 , G06F2207/7209 , H04L9/0631 , H04L9/0637 , H04L2209/12
摘要： Embodiments of the invention provide a method and a device for manipulating data provided in a GF(22s) representation, e.g., for implementing at least some AES encryption and/or decryption operations on data provided in a GF(22s) representation, by converting the GF(22s) into a GF((2s)2) representation (102) and performing GF(22s) equivalent operations in the GF((2s)2) representation (104).

8. 发明授权

EP2330530B1 Memory system with in-stream data encryption/decryption 有权
标题翻译：存储系统，在流数据的加密/解密
公开(公告)号：EP2330530B1
公开(公告)日：2013-04-03
申请号：EP10182649.3
申请日：2005-12-21
申请人： SanDisk Technologies Inc. , Discretix Technologies Ltd.
发明人： Holtzman, Michael , Cohen, Baruch , Deitcher, David , Bar-El, Hagei , Yeruchami, Aviram
IPC分类号： G06F21/00
CPC分类号： G06F21/78

9. 发明授权

EP1828948B1 MEMORY SYSTEM WITH IN-STREAM DATA ENCRYPTION/DECRYPTION 有权
标题翻译：在流加密/解密存储系统
公开(公告)号：EP1828948B1
公开(公告)日：2012-02-08
申请号：EP05855187.0
申请日：2005-12-21
申请人： SanDisk Corporation , Discretix Technologies Ltd.
发明人： HOLTZMAN, Michael , COHEN, Baruch Boris , DEITCHER, David , BAR-EL, Hagai , YERUCHAMI, Aviram
IPC分类号： G06F21/00
CPC分类号： G06F21/78
摘要： The throughput of the memory system is improved where data in a data stream is cryptographically processed by a circuit without involving intimately any controller. The data stream is preferably controlled so that it has a selected data source among a plurality of sources and a selected destination among a plurality of destinations, all without involving the controller. The cryptographic circuit may preferably be configured to enable the processing of multiple pages, selection of one or more cryptographic algorithms among a plurality of algorithms to encryption and/or decryption without involving a controller, and to process data cryptographically in multiple successive stages without involvement of the controller. For a memory system cryptographically processing data from multiple data streams in an interleaved manner, when a session is interrupted, security configuration information may be lost so that it may become impossible to continue the process when the session is resumed. To retain the security configuration information, the controller preferably causes the security configuration information for the session to be stored before the interruption so that it is retrievable after the interruption.

10. 发明公开

EP2278518A1 Memory system with in-stream data encryption/decryption 有权
标题翻译：带有流内数据加密/解密的内存系统
公开(公告)号：EP2278518A1
公开(公告)日：2011-01-26
申请号：EP10177325.7
申请日：2005-12-21
申请人： SanDisk Corporation , Discretix Technologies Ltd.
发明人： Holtzman, Michael , Cohen, Baruch Boris , Deitcher, David , Bar-ElL, Hagai , Yeruchami, Aviram
IPC分类号： G06F21/00
CPC分类号： G06F21/78
摘要： The throughput of the memory system is improved where data in a data stream is cryptographically processed by a circuit without involving intimately any controller. The data stream is preferably controlled so that it has a selected data source among a plurality of sources and a selected destination among a plurality of destinations, all without involving the controller. The cryptographic circuit may preferably be configured to enable the processing of multiple pages, selection of one or more cryptographic algorithms among a plurality of algorithms to encryption and/or decryption without involving a controller, and to process data cryptographically in multiple successive stages without involvement of the controller. For a memory system cryptographically processing data from multiple data streams in an interleaved manner, when a session is interrupted, security configuration information may be lost so that it may become impossible to continue the process when the session is resumed. To retain the security configuration information, the controller preferably causes the security configuration information for the session to be stored before the interruption so that it is retrievable after the interruption.
摘要翻译：存储器系统的吞吐量在数据流中的数据由电路密码处理而不涉及任何控制器的情况下得到改善。优选地控制数据流，使得其具有多个源中的选定数据源和多个目的地中的选定目的地，全部都不涉及控制器。密码电路可以优选地被配置为使得能够处理多个页面，在多个算法中选择一个或多个密码算法以在不涉及控制器的情况下进行加密和/或解密，并且在多个连续阶段中以密码方式处理数据而不涉及控制器。对于以交错方式密码处理来自多个数据流的数据的存储器系统，当会话中断时，安全配置信息可能会丢失，使得当会话恢复时可能无法继续该过程。为了保留安全配置信息，控制器优选地使会话的安全配置信息在中断之前被存储，以便在中断之后可被检索。

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