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71. 发明授权

US08589897B2 System and method for branch extraction obfuscation 有权
标题翻译：分支提取混淆的系统和方法
公开(公告)号：US08589897B2
公开(公告)日：2013-11-19
申请号：US12198873
申请日：2008-08-26
申请人： Gideon M. Myles , Julien Lerouge , Tanya Michelle Lattner , Augustin J. Farrugia
发明人： Gideon M. Myles , Julien Lerouge , Tanya Michelle Lattner , Augustin J. Farrugia
IPC分类号： G06F9/45
CPC分类号： G06F8/41 , G06F8/447 , G06F9/44521 , G06F21/14
摘要： Disclosed herein are systems, methods, and computer readable-media for obfuscating code. The method includes extracting a conditional statement from a computer program, creating a function equivalent to the conditional statement, creating a pointer that points to the function, storing the pointer in an array of pointers, replacing the conditional statement with a call to the function using the pointer at an index in the array, and during runtime of the computer program, dynamically calculating the index corresponding to the pointer in the array. In one aspect, a subset of instructions is extracted from a path associated with the conditional statement and the subset of instructions is placed in the function to evaluate the conditional statement. In another aspect, the conditional statement is replaced with a call to a select function that (1) calculates the index into the array, (2) retrieves the function pointer from the array using the index, and (3) calls the function using the function pointer. Calls can be routed through a select function before the function pointer is used to call the function evaluating the conditional statement. Each step in the method can be applied to source code of the computer program, an intermediate representation of the computer program, and assembly code of the computer program.
摘要翻译：这里公开了用于模糊代码的系统，方法和计算机可读介质。该方法包括从计算机程序中提取条件语句，创建等价于条件语句的函数，创建指向函数的指针，将指针存储在指针数组中，使用对函数的调用替换条件语句数组中的索引处的指针，以及在计算机程序的运行期间，动态地计算与数组中的指针相对应的索引。在一个方面，从与条件语句相关联的路径中提取指令子集，并将指令子集置于函数中以评估条件语句。在另一方面，条件语句被替换为select函数的调用，（1）计算数组中的索引，（2）使用索引从数组中检索函数指针，（3）使用函数指针。在使用函数指针调用评估条件语句的函数之前，可以通过select函数路由调用。该方法中的每一步都可以应用于计算机程序的源代码，计算机程序的中间表示和计算机程序的汇编代码。

72. 发明申请

US20120260106A1 SYSTEM AND METHOD FOR BINARY LAYOUT RANDOMIZATION 审中-公开
标题翻译：用于二进制布局约束的系统和方法
公开(公告)号：US20120260106A1
公开(公告)日：2012-10-11
申请号：US13081994
申请日：2011-04-07
申请人： Ganna Zaks , Julien Lerouge , Jon McLachlan , Gideon M. Myles , Augustin J. Farrugia
发明人： Ganna Zaks , Julien Lerouge , Jon McLachlan , Gideon M. Myles , Augustin J. Farrugia
IPC分类号： G06F12/14
CPC分类号： G06F21/14 , G06F12/1408
摘要： Disclosed herein are systems, methods, and non-transitory computer-readable storage media for binary layout randomization. A system performs binary layout randomization by loading computer code into memory and identifying a section of the computer code to randomize. A loader remaps the section of computer code to a different location in memory utilizing a remapping algorithm. The loader can shuffle sections of code in place or move sections of code elsewhere. The loader patches relative addresses to point to the updated locations in memory. After the system patches the addresses, the system executes the computer code from memory. In one embodiment, the system encrypts the computer code prior to loading the computer code into memory. The loader decrypts the encrypted computer code prior to remapping the section of computer code to a different location in memory. Optionally, the loader can decrypt the encrypted computer code after patching relative addresses.
摘要翻译：本文公开了用于二进制布局随机化的系统，方法和非暂时计算机可读存储介质。系统通过将计算机代码加载到内存中并识别计算机代码的一部分来随机化来执行二进制布局随机化。使用重新映射算法，加载器将计算机代码的部分重新映射到存储器中的不同位置。加载器可以将代码段拖放到位或将代码段移到其他位置。加载程序将相对地址补丁指向内存中更新的位置。系统修补地址后，系统会从内存中执行计算机代码。在一个实施例中，系统在将计算机代码加载到存储器之前加密计算机代码。在重新映射计算机代码部分到存储器中的不同位置之前，加载器解密加密的计算机代码。可选地，加载器可以在修补相对地址之后对加密的计算机代码进行解密。

73. 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。

74. 发明申请

US20100058301A1 SYSTEM AND METHOD FOR BRANCH EXTRACTION OBFUSCATION 有权
标题翻译：分支抽取障碍的系统与方法
公开(公告)号：US20100058301A1
公开(公告)日：2010-03-04
申请号：US12198873
申请日：2008-08-26
申请人： Ginger M. MYLES , Julien Lerouge , Tanya Michelle Lattner , Augustin J. Farrugia
发明人： Ginger M. MYLES , Julien Lerouge , Tanya Michelle Lattner , Augustin J. Farrugia
IPC分类号： G06F9/45
CPC分类号： G06F8/41 , G06F8/447 , G06F9/44521 , G06F21/14
摘要： Disclosed herein are systems, methods, and computer readable-media for obfuscating code. The method includes extracting a conditional statement from a computer program, creating a function equivalent to the conditional statement, creating a pointer that points to the function, storing the pointer in an array of pointers, replacing the conditional statement with a call to the function using the pointer at an index in the array, and during runtime of the computer program, dynamically calculating the index corresponding to the pointer in the array. In one aspect, a subset of instructions is extracted from a path associated with the conditional statement and the subset of instructions is placed in the function to evaluate the conditional statement. In another aspect, the conditional statement is replaced with a call to a select function that (1) calculates the index into the array, (2) retrieves the function pointer from the array using the index, and (3) calls the function using the function pointer. Calls can be routed through a select function before the function pointer is used to call the function evaluating the conditional statement. Each step in the method can be applied to source code of the computer program, an intermediate representation of the computer program, and assembly code of the computer program.
摘要翻译：这里公开了用于模糊代码的系统，方法和计算机可读介质。该方法包括从计算机程序中提取条件语句，创建等价于条件语句的函数，创建指向函数的指针，将指针存储在指针数组中，使用对函数的调用替换条件语句数组中的索引处的指针，以及在计算机程序的运行期间，动态地计算与数组中的指针相对应的索引。在一个方面，从与条件语句相关联的路径中提取指令子集，并将指令子集置于函数中以评估条件语句。在另一方面，条件语句被替换为select函数的调用，（1）计算数组中的索引，（2）使用索引从数组中检索函数指针，（3）使用函数指针。在使用函数指针调用评估条件语句的函数之前，可以通过select函数路由调用。该方法中的每一步都可以应用于计算机程序的源代码，计算机程序的中间表示和计算机程序的汇编代码。

75. 发明授权

US09031228B2 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：US09031228B2
公开(公告)日：2015-05-12
申请号：US13448385
申请日：2012-04-16
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： H04L9/28 , H04L9/00 , H04L9/06
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 of reverse engineering efforts. 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 output state. A second plurality of tables (T2) are used to perform a polynomial multiplication portion of MixColumns operation, and an XOR portion of MixColumns is performed arithmetically on the columns. 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：用于实施块密码算法（例如，AES）的系统和方法使用查找表来掩盖关键信息，增加了逆向工程努力的难度。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。对输出状态进行算术运算。使用第二多个表（T2）来执行MixColumns操作的多项式乘法部分，并且对列进行算术运算的MixColumn的XOR部分。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。

76. 发明授权

US08862896B2 Data protection using key translation 有权
标题翻译：数据保护使用关键翻译
公开(公告)号：US08862896B2
公开(公告)日：2014-10-14
申请号：US12961374
申请日：2010-12-06
申请人： Gelareh Taban , Filip Paun , Benoit Chevallier-Mames , Augustin J. Farrugia , Mathieu Ciet
发明人： Gelareh Taban , Filip Paun , Benoit Chevallier-Mames , Augustin J. Farrugia , Mathieu Ciet
IPC分类号： G06F12/14 , H04L9/08
CPC分类号： H04L9/08 , H04L9/0861 , H04L2209/04
摘要： In the data security field, a data protection process embodied in a computer system or computing device or equivalent and which securely descrambles protected (scrambled) data. The process descrambles the data using a dynamic process employing a set of multi-level trees of deterministic functions to generate a descrambling mask value and recover the descrambled message.
摘要翻译：在数据安全领域中，包含在计算机系统或计算设备或等同物中并且安全地解扰受保护（加扰）数据的数据保护过程。该过程使用采用一组确定性函数的多级树的动态过程来解扰数据，以产生解扰掩码值并恢复解扰消息。

77. 发明授权

US08707053B2 Performing boolean logic operations using arithmetic operations by code obfuscation 有权
标题翻译：使用代码混淆的算术运算执行布尔逻辑运算
公开(公告)号：US08707053B2
公开(公告)日：2014-04-22
申请号：US13024258
申请日：2011-02-09
申请人： Augustin J. Farrugia , Benoit Chevallier-Mames , Mathieu Ciet , Thomas Icart
发明人： Augustin J. Farrugia , Benoit Chevallier-Mames , Mathieu Ciet , Thomas Icart
IPC分类号： G06F12/14
CPC分类号： G06F21/14
摘要： Method and apparatus for obfuscating computer software code, to protect against reverse-engineering of the code. The obfuscation here is of the part of the code that performs a Boolean logic operation such as an exclusive OR on two (or more) data variables. In the obfuscated code, each of the two variables is first modified by applying to it a function which deconstructs the value of each of the variables, and then the exclusive OR operation is replaced by an arithmetic operation such as addition, subtraction, or multiplication, which is performed on the two deconstructed variables. The non-obfuscated result is recovered by applying a third function to the value generated by the arithmetic operation. This obfuscation is typically carried out by suitably annotating (modifying) the original source code.
摘要翻译：用于模糊计算机软件代码的方法和装置，以防止代码的逆向工程化。这里的混淆是执行布尔逻辑运算的代码的一部分，例如两个（或多个）数据变量上的异或运算。在混淆代码中，首先通过对两个变量中的每一个进行修改来解构每个变量的值，然后通过诸如加法，减法或乘法的算术运算来代替异或运算，这是对两个解构变量进行的。通过对由算术运算产生的值应用第三函数来恢复未混淆的结果。这种混淆通常通过适当地注释（修改）原始源代码来执行。

78. 发明授权

US08661549B2 Method and apparatus for obfuscating program source codes 有权
标题翻译：用于模糊程序源代码的方法和装置
公开(公告)号：US08661549B2
公开(公告)日：2014-02-25
申请号：US13411099
申请日：2012-03-02
申请人： Benoit Chevallier-Mames , Mathieu Ciet , Thomas Icart , Augustin J. Farrugia , Bruno Kindarji
发明人： Benoit Chevallier-Mames , Mathieu Ciet , Thomas Icart , Augustin J. Farrugia , Bruno Kindarji
IPC分类号： G06F7/04 , G06F17/30 , H04N7/16 , G06F21/10 , G11B20/00
CPC分类号： G06F21/10 , G06F8/30 , G06F21/14 , G11B20/00086 , G11B20/0021
摘要： First source code of a computer program having a plurality of lines of instructions is received. An obfuscation process is performed on the first source code, including at least two of a shuffling operation, a fertilizing operation, an aggregating operation, and a neutralizing operation. Second source code is generated based on the obfuscation process, where the second source code, when executed by a processor, produces an identical result as the first source code.
摘要翻译：接收具有多行指令的计算机程序的第一源代码。对第一源代码执行混淆处理，包括混洗操作，施肥操作，聚合操作和中和操作中的至少两个。基于模糊处理产生第二源代码，其中第二源代码在由处理器执行时产生与第一源代码相同的结果。

79. 发明授权

US08553878B2 Data transformation system using cyclic groups 有权
标题翻译：数据转换系统采用循环群
公开(公告)号：US08553878B2
公开(公告)日：2013-10-08
申请号：US12760474
申请日：2010-04-14
申请人： Augustin J. Farrugia , Mathieu Ciet , Benoit Chevallier-Mames
发明人： Augustin J. Farrugia , Mathieu Ciet , Benoit Chevallier-Mames
IPC分类号： H04K1/00 , H04L9/00 , H04L9/24
CPC分类号： H04L9/3013 , H04L9/3066 , H04L2209/16
摘要： An asymmetric (dual key) data obfuscation process, based on the well known ElGamal cryptosystem algorithm, and which uses multiplicative cyclic groups to transform (obfuscate) digital data for security purposes. In the present system the data need not be a member of the cyclic group, unlike in the ElGamal cryptosystem algorithm. Also, any one of several additional mathematical data transformations are further applied to the transformed data, thereby enhancing security of the transformed data.
摘要翻译：基于众所周知的ElGamal密码系统算法的非对称（双密钥）数据混淆处理，为了安全起见，使用乘法循环组来转换（混淆）数字数据。在本系统中，与ElGamal密码系统算法不同，数据不需要是循环组的成员。而且，数字附加数学变换中的任何一个进一步应用于变换后的数据，从而提高变换数据的安全性。

80. 发明申请

US20130259226A1 METHODS AND APPARATUS FOR CORRELATION PROTECTED PROCESSING OF CRYPTOGRAPHIC OPERATIONS 有权
标题翻译：用于相关操作的保护加工的方法和装置
公开(公告)号：US20130259226A1
公开(公告)日：2013-10-03
申请号：US13437687
申请日：2012-04-02
申请人： Mathieu Ciet , Benoit Chevallier-Mames , Thomas Icart , Bruno Kindarji , Augustin J. Farrugia
发明人： Mathieu Ciet , Benoit Chevallier-Mames , Thomas Icart , Bruno Kindarji , Augustin J. Farrugia
IPC分类号： G06F21/24
CPC分类号： H04L9/08 , G06F21/14 , H04L9/002 , H04L9/0631 , H04L9/30 , H04L2209/16
摘要： A method and an apparatus that generate a plurality of elements randomly as a split representation of an input used to provide an output data cryptographically representing an input data are described. The input may correspond to a result of a combination operation on the elements. Cryptographic operations may be performed on the input data and the elements to generate a plurality of data elements without providing data correlated with the key. The combination operation may be performed on the data elements for the output data.
摘要翻译：描述了随机生成多个元素作为用于提供密码地表示输入数据的输出数据的输入的分割表示的方法和装置。输入可以对应于元素上的组合操作的结果。可以对输入数据和元素执行密码操作以生成多个数据元素，而不提供与密钥相关的数据。可以对输出数据的数据元素执行组合操作。

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