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121. 发明授权

US08300809B2 System and method for modulus obfuscation 有权
标题翻译：模糊模糊系统和方法
公开(公告)号：US08300809B2
公开(公告)日：2012-10-30
申请号：US13222245
申请日：2011-08-31
申请人： Mathieu Ciet , Augustin J. Farrugia , Nicholas T. Sullivan
发明人： Mathieu Ciet , Augustin J. Farrugia , Nicholas T. Sullivan
IPC分类号： H04L9/00
CPC分类号： H04L9/00 , H04L2209/16
摘要： Disclosed herein are methods for obfuscating data via a modulus operation. A client device receives input data, stores an operation value, performs a modulus obfuscation on the operation value, performs a modulus operation on the operation value and the input data, performs a modulus transformation on the operation value and the input data to obtain client output data, and checks if the client output data matches corresponding server output data. A corresponding server device receives input data, performs a modulus transformation on the input data to obtain a result, performs a plain operation on the result and an operation value to obtain server output data, and checks if the server output data matches corresponding client output data from the client device. The client and/or server can optionally authenticate the client input data and the server input data if the server output data matches the client output data.
摘要翻译：这里公开的是通过模数运算来模糊数据的方法。客户机接收输入数据，存储操作值，对运算值进行模糊混淆，对运算值和输入数据进行模运算，对运算值和输入数据进行模变换，得到客户输出数据，并检查客户端输出数据是否匹配相应的服务器输出数据。相应的服务器设备接收输入数据，对输入数据进行模数变换以获得结果，对结果执行简单操作，并获取操作值以获取服务器输出数据，并检查服务器输出数据是否与相应的客户端输出数据相匹配从客户端设备。如果服务器输出数据与客户端输出数据匹配，则客户端和/或服务器可以可选地认证客户端输入数据和服务器输入数据。

122. 发明授权

US08185749B2 System and method for revising boolean and arithmetic operations 有权
标题翻译：用于修改布尔和算术运算的系统和方法
公开(公告)号：US08185749B2
公开(公告)日：2012-05-22
申请号：US12203036
申请日：2008-09-02
申请人： Mathieu Ciet , Augustin J. Farrugia , Filip Toma Paun , Jean-Francois Riendeau
发明人： Mathieu Ciet , Augustin J. Farrugia , Filip Toma Paun , Jean-Francois Riendeau
IPC分类号： H04L9/32 , H04L29/06 , G06F11/30 , G06F11/00 , G06F7/04 , G06F9/00
CPC分类号： H04L9/0612 , G06F7/00 , G06F21/125 , G06F2207/7252 , H04L9/002 , H04L2209/08 , H04L2209/12 , H04L2209/16
摘要： Disclosed herein are systems, methods, computer readable media and special purpose processors for obfuscating code. The method includes extracting an operation within program code, selecting a formula to perform the equivalent computation as the extracted operation, and replacing the extracted operation with the selected formula. The formula can be selected randomly or deterministically. The extracted operation can be an arithmetic operation or a Boolean operation.
摘要翻译：本文公开了用于对代码进行混淆的系统，方法，计算机可读介质和专用处理器。该方法包括提取程序代码内的操作，选择一个公式以执行与提取的操作等效的计算，并用所选公式替换提取的操作。公式可以随机或确定地选择。提取的操作可以是算术运算或布尔运算。

123. 发明申请

US20120124392A1 SYSTEM AND METHOD FOR STREAM/BLOCK CIPHER WITH INTERNAL RANDOM STATES 有权
标题翻译：具有内部随机状态的流动/块式滚筒的系统和方法
公开(公告)号：US20120124392A1
公开(公告)日：2012-05-17
申请号：US13316265
申请日：2011-12-09
申请人： Mathieu Ciet , Augustin J. Farrugia , Filip Toma Paun
发明人： Mathieu Ciet , Augustin J. Farrugia , Filip Toma Paun
IPC分类号： G06F12/14
CPC分类号： H04L9/002 , H04L9/0618 , H04L2209/08 , H04L2209/16 , H04L2209/24
摘要： Disclosed herein are systems, methods, and computer readable-media for performing data encryption and decryption using a stream or block cipher with internal random states. The method includes splitting the input data into a predetermined number of blocks and processing each block. The processing includes creating sub-blocks, permuting the sub-blocks, replacing bytes using a lookup table, rotating bits, performing expansion and combining sets of bits. The element of randomness employed in this process allows for the same input to yield the same output, with differing internal states.
摘要翻译：本文公开了用于使用具有内部随机状态的流或块密码执行数据加密和解密的系统，方法和计算机可读介质。该方法包括将输入数据分割成预定数量的块并处理每个块。该处理包括创建子块，置换子块，使用查找表替换字节，旋转位，执行扩展和组合位组。在该过程中使用的随机元素允许相同的输入产生具有不同内部状态的相同输出。

124. 发明授权

US08176337B2 Computer object code obfuscation using boot installation 有权
标题翻译：使用引导安装的计算机对象代码模糊
公开(公告)号：US08176337B2
公开(公告)日：2012-05-08
申请号：US12047207
申请日：2008-03-12
申请人： Mathieu Ciet , Julien Lerouge , Augustin J. Farrugia
发明人： Mathieu Ciet , Julien Lerouge , Augustin J. Farrugia
IPC分类号： G06F12/14 , G06F9/45 , G06F11/00
CPC分类号： G06F21/14 , G06F21/577
摘要： In the field of computer software, obfuscation techniques for enhancing software security are applied to compiled (object) software code. The obfuscation results here in different versions (instances) of the obfuscated code being provided to different installations (recipient computing devices). The complementary code execution uses a boot loader or boot installer-type program at each installation which contains the requisite logic. Typically, the obfuscation results in a different instance of the obfuscated code for each intended installation (recipient) but each instance being semantically equivalent to the others. This is accomplished in one version by generating a random value or other parameter during the obfuscation process, and using the value to select a particular version of the obfuscating process, and then communicating the value along with boot loader or installer program software. This boot loader then selects which particular process to use for the code execution at the time of installation in accordance with the value. This results in different versions of the obfuscated code being provided to each recipient installation, which further enhances security of the code against reverse engineering by hackers.
摘要翻译：在计算机软件领域，用于增强软件安全性的混淆技术应用于编译（对象）软件代码。这里的混淆结果在不同版本（实例）的混淆代码提供给不同的安装（收件人计算设备）。互补代码执行在每个安装时使用引导加载程序或引导安装程序类型程序，其中包含必需的逻辑。通常，混淆导致每个预期安装（接收者）的混淆代码的不同实例，但每个实例在语义上等同于其他安装。这在一个版本中通过在混淆过程中产生随机值或其他参数来实现，并且使用该值来选择混淆过程的特定版本，然后与引导加载程序或安装程序软件一起传送该值。然后，该引导加载程序根据该值选择在安装时用于执行代码的特定进程。这导致了向每个接收方安装提供了不同版本的混淆代码，这进一步增强了代码的安全性，防止了黑客的反向工程。

125. 发明授权

US08175265B2 Systems and methods for implementing block cipher algorithms on attacker-controlled systems 有权
标题翻译：用于在攻击者控制的系统上实现块密码算法的系统和方法
公开(公告)号：US08175265B2
公开(公告)日：2012-05-08
申请号：US12203120
申请日：2008-09-02
申请人： Mathieu Ciet , Augustin J. Farrugia , Filip Toma Paun
发明人： Mathieu Ciet , Augustin J. Farrugia , Filip Toma Paun
IPC分类号： H04L9/00
CPC分类号： H04L9/002 , H04L9/0618 , H04L9/0631 , H04L2209/043 , H04L2209/122 , H04L2209/125 , H04L2209/16
摘要： Systems and methods for an implementation of block cipher algorithms (e.g., AES) use lookup tables to obscure key information, increasing difficulty for those with privileged access to a system performing the AES algorithm to obtain such key information. The implementation encodes round key information into a first plurality of tables (T1), which when used for lookup operations also complete SubBytes operations, and output state in an encoded format. A Shiftrows operation is performed arithmetically on the state output from the T1 table lookups. A second plurality of tables (T2) are used to perform a polynomial multiplication portion of MixColumns to state from Shiftrows, and an XOR portion of MixColumns is performed arithmetically on the columns outputted from using the T2 tables. Encoding from the T1 tables is made to match a decoding built into the T2 tables. Subsets of the T1 tables use the same T2 tables, reducing a memory footprint for the T2 tables. Multiple AES keys can be embedded in different sets of T1 tables that encode for the same set of T2 tables.
摘要翻译：用于实现块密码算法（例如，AES）的系统和方法使用查找表来遮蔽密钥信息，增加对执行AES算法的系统具有特权访问权限的那些人获得这种密钥信息的难度。该实施方式将循环密钥信息编码到第一多个表（T1）中，当用于查找操作时也完成子字节操作，并且以编码格式输出状态。从T1表查找的状态输出上进行Shiftrows操作。第二多个表（T2）用于执行MixColumns的多项式乘法部分从Shiftrows状态，并且MixColumns的XOR部分在使用T2表输出的列上进行算术运算。使T1表格的编码与T2表中内置的解码相匹配。 T1表的子集使用相同的T2表，减少了T2表的内存占用。可以将多个AES密钥嵌入到为同一组T2表编码的不同的T1表中。

126. 发明申请

US20120079589A1 SYSTEM AND METHOD FOR AUTHENTICATION USING A SHARED TABLE AND SORTING EXPONENTIATION 有权
标题翻译：使用共享表和分配引用进行认证的系统和方法
公开(公告)号：US20120079589A1
公开(公告)日：2012-03-29
申请号：US13244068
申请日：2011-09-23
申请人： Pierre Betouin , Mathieu Ciet , Augustin J. Farrugia
发明人： Pierre Betouin , Mathieu Ciet , Augustin J. Farrugia
IPC分类号： G06F21/00
CPC分类号： G06F21/31
摘要： Disclosed herein are systems, computer-implemented methods, and computer-readable media for authentication using a shared table. The method receives an authentication challenge from a first entity including an accumulator with an initial value, lists of elements in a shared table, and a list of sorting algorithms, each sorting algorithm is associated with one of the lists of elements and modified to include embedded instructions operating on the accumulator. The method then generates a temporary table for each list of elements in the shared table by copying elements from the shared table as indicated in each respective list of elements, each temporary table being associated with one sorting algorithm in the list of sorting algorithms. The method sorts each generated temporary table with the associated sorting algorithm, thereby updating the accumulator with the embedded instructions. Finally, the method transmits the updated accumulator to the first entity for verification.
摘要翻译：本文公开了系统，计算机实现的方法和用于使用共享表进行认证的计算机可读介质。该方法从包括具有初始值的累加器，共享表中的元素列表和排序算法列表的第一实体接收认证挑战，每个排序算法与元素列表中的一个相关联并被修改为包括嵌入在累加器上操作的指令。然后，该方法通过从每个相应的元素列表中指示的从共享表中复制元素来生成共享表中的每个元素列表的临时表，每个临时表与排序算法列表中的一个排序算法相关联。该方法使用相关联的排序算法对每个生成的临时表进行排序，从而用嵌入式指令更新累加器。最后，该方法将更新的累加器发送到第一实体进行验证。

127. 发明授权

US08140809B2 Computer implemented masked representation of data tables 有权
标题翻译：计算机实现数据表的屏蔽表示
公开(公告)号：US08140809B2
公开(公告)日：2012-03-20
申请号：US12475377
申请日：2009-05-29
申请人： Augustin J. Farrugia , Mathieu Ciet , Pierre Betouin
发明人： Augustin J. Farrugia , Mathieu Ciet , Pierre Betouin
IPC分类号： G06F13/00
CPC分类号： G06F21/14
摘要： In the computer software field, method and apparatus to obfuscate (mask or hide) computer data which is part of or accessed by a computer program. The method protects (hides) accesses to tables of data in terms of the place or position of each element in the table. It does this by providing an intermediate table which describes the positions of the elements of the first table or tables, but in a transformed (modified) fashion.
摘要翻译：在计算机软件领域中，对计算机程序的一部分或访问的计算机数据进行混淆（掩蔽或隐藏）的方法和装置。该方法根据表中每个元素的位置或位置来保护（隐藏）对数据表的访问。它通过提供描述第一表或表的元素的位置但以变换（修改）的方式来提供中间表。

128. 发明申请

US20120045050A1 Apparatus and method for block cipher process for insecure environments 有权
标题翻译：用于不安全环境的块密码处理的装置和方法
公开(公告)号：US20120045050A1
公开(公告)日：2012-02-23
申请号：US12806768
申请日：2010-08-20
申请人： Augustin J. Farrugia , Thomas Icart , Mathieu Ciet
发明人： Augustin J. Farrugia , Thomas Icart , Mathieu Ciet
IPC分类号： H04L9/28
CPC分类号： H04L9/0631 , H04L2209/043 , H04L2209/16
摘要： Method and apparatus for increasing security of a cryptographic algorithm such as deciphering, enciphering, or a digital signature using a block type cipher such as AES implemented for instance in a “whitebox” model with the cipher key either known or unknown at the compilation time. This method is secure for use in entrusted environments, particularly for securing cryptographic keys. The look up tables characteristic of such algorithms are protected against attack here by making all such tables of the same size and indistinguishable, and further by masking the output values of such tables, typically where the tables carry out a permutation function or a logical exclusive OR operation.
摘要翻译：使用例如在“白盒”模式中实现的诸如AES之类的块类型密码的加密算法的安全性的加密算法的安全性的方法和装置，所述密码算法在编译时具有已知或未知的密码密钥。这种方法是安全的，用于委托环境，特别是用于保护加密密钥。这种算法特征的查找表可以通过使所有这些相同尺寸和不可区分的表格进行保护，防止这种攻击，并进一步通过掩蔽这些表的输出值，通常在表执行置换功能或逻辑异或操作。

129. 发明授权

US08094816B2 System and method for stream/block cipher with internal random states 有权
标题翻译：具有内部随机状态的流/块密码的系统和方法
公开(公告)号：US08094816B2
公开(公告)日：2012-01-10
申请号：US12255539
申请日：2008-10-21
申请人： Mathieu Ciet , Augustin J. Farrugia , Filip Toma Paun
发明人： Mathieu Ciet , Augustin J. Farrugia , Filip Toma Paun
IPC分类号： H04K1/00 , H04L9/00
CPC分类号： H04L9/002 , H04L9/0618 , H04L2209/08 , H04L2209/16 , H04L2209/24
摘要： Disclosed herein are systems, methods, and computer readable-media for performing data encryption and decryption using a stream or block cipher with internal random states. The method includes splitting the input data into a predetermined number of blocks and processing each block. The processing includes creating sub-blocks, permuting the sub-blocks, replacing bytes using a lookup table, rotating bits, performing expansion and combining sets of bits. The element of randomness employed in this process allows for the same input to yield the same output, with differing internal states.
摘要翻译：本文公开了用于使用具有内部随机状态的流或块密码执行数据加密和解密的系统，方法和计算机可读介质。该方法包括将输入数据分割成预定数量的块并处理每个块。该处理包括创建子块，置换子块，使用查找表替换字节，旋转位，执行扩展和组合位组。在该过程中使用的随机元素允许相同的输入产生具有不同内部状态的相同输出。

130. 发明申请

US20110320806A1 SYSTEM AND METHOD FOR MODULUS OBFUSCATION 有权
标题翻译：用于模块化的系统和方法
公开(公告)号：US20110320806A1
公开(公告)日：2011-12-29
申请号：US13222245
申请日：2011-08-31
申请人： Mathieu Ciet , Augustin J. Farrugia , Nicholas T. Sullivan
发明人： Mathieu Ciet , Augustin J. Farrugia , Nicholas T. Sullivan
IPC分类号： H04L9/00
CPC分类号： H04L9/00 , H04L2209/16
摘要： Disclosed herein are methods for obfuscating data via a modulus operation. A client device receives input data, stores an operation value, performs a modulus obfuscation on the operation value, performs a modulus operation on the operation value and the input data, performs a modulus transformation on the operation value and the input data to obtain client output data, and checks if the client output data matches corresponding server output data. A corresponding server device receives input data, performs a modulus transformation on the input data to obtain a result, performs a plain operation on the result and an operation value to obtain server output data, and checks if the server output data matches corresponding client output data from the client device. The client and/or server can optionally authenticate the client input data and the server input data if the server output data matches the client output data.
摘要翻译：这里公开的是通过模数运算来模糊数据的方法。客户机接收输入数据，存储操作值，对运算值进行模糊混淆，对运算值和输入数据进行模运算，对运算值和输入数据进行模变换，得到客户输出数据，并检查客户端输出数据是否匹配相应的服务器输出数据。相应的服务器设备接收输入数据，对输入数据进行模数变换以获得结果，对结果执行简单操作，并获取操作值以获取服务器输出数据，并检查服务器输出数据是否与相应的客户端输出数据相匹配从客户端设备。如果服务器输出数据与客户端输出数据匹配，则客户端和/或服务器可以可选地认证客户端输入数据和服务器输入数据。

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