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81. 发明申请

US20130232578A1 METHOD AND APPARATUS FOR OBFUSCATING PROGRAM SOURCE CODES 有权
标题翻译：用于伪造程序源代码的方法和装置
公开(公告)号：US20130232578A1
公开(公告)日：2013-09-05
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： G06F21/22 , G06F9/45
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。

82. 发明授权

US08504845B2 Protecting states of a cryptographic process using group automorphisms 有权
标题翻译：使用组自动化保护加密过程的状态
公开(公告)号：US08504845B2
公开(公告)日：2013-08-06
申请号：US13076362
申请日：2011-03-30
申请人： Augustin J. Farrugia , Mathieu Ciet , Thomas Icart
发明人： Augustin J. Farrugia , Mathieu Ciet , Thomas Icart
IPC分类号： H04L9/28
CPC分类号： G06F21/602 , G06F21/52
摘要： In the field of computer enabled cryptography, such as a keyed block cipher having a plurality of rounds, the cipher is hardened against an attack by a protection process which obscures the cipher states and/or the round keys using the properties of group field automorphisms and applying multiplicative masks (instead of conventional XOR masks) to the states of the cipher, for encryption or decryption. This is especially advantageous in a “White Box” environment where an attacker has full access to the cipher algorithm, including the algorithm's internal state during its execution. This method and the associated computing apparatus are useful for protection against known attacks on “White Box” ciphers, by eliminating XOR operations with improved masking techniques and increasing complexity of reverse engineering and of attacks.
摘要翻译：在诸如具有多个回合的密钥分组密码的计算机启用密码学领域中，使用组域自动生成的属性，使密码状态和/或循环密钥隐藏的保护过程针对攻击进行加密，将乘法掩码（而不是常规XOR掩码）应用于密码的状态，以进行加密或解密。这在“白盒”环境中特别有利，攻击者可以完全访问密码算法，包括算法的执行过程中的内部状态。该方法和相关联的计算装置对于通过利用改进的掩蔽技术消除XOR操作并增加逆向工程和攻击的复杂性来防止已知的对“白盒”密码的攻击是有用的。

83. 发明授权

US08386803B2 System and method for data obfuscation based on discrete logarithm properties 有权
标题翻译：基于离散对数特性的数据混淆系统和方法
公开(公告)号：US08386803B2
公开(公告)日：2013-02-26
申请号：US12621153
申请日：2009-11-18
申请人： Augustin J. Farrugia , Benoit Chevallier-Mames , Mathieu Ciet , Jon McLachlan
发明人： Augustin J. Farrugia , Benoit Chevallier-Mames , Mathieu Ciet , Jon McLachlan
IPC分类号： G06F11/30 , G06F12/14 , H04K1/00 , H04L9/00 , H04L9/28
CPC分类号： G06F21/14 , G06F8/51 , H04L9/002 , H04L9/3013 , H04L2209/046 , H04L2209/08 , H04L2209/16
摘要： Disclosed herein are systems, computer-implemented methods, and computer-readable storage media for obfuscating data based on a discrete logarithm. A system practicing the method identifies a clear value in source code, replaces the clear value in the source code with a transformed value based on the clear value and a discrete logarithm, and updates portions of the source code that refer to the clear value such that interactions with the transformed value provide a same result as interactions with the clear value. This discrete logarithm approach can be implemented in three variations. The first variation obfuscates some or all of the clear values in loops. The second variation obfuscates data in a process. The third variation obfuscates data pointers, including tables and arrays. The third variation also preserves the ability to use pointer arithmetic.
摘要翻译：本文公开的是基于离散对数来混淆数据的系统，计算机实现的方法和计算机可读存储介质。实施该方法的系统识别源代码中的明确值，基于清除值和离散对数，用源代码替换变换值，并更新引用清除值的源代码部分，使得与变换值的交互提供与清除值的交互相同的结果。这种离散对数方法可以在三个变体中实现。第一个变体模糊了循环中的一些或全部清除值。第二个变体在一个过程中模糊数据。第三个变体模糊数据指针，包括表和数组。第三个变体也保留了使用指针算术的能力。

84. 发明授权

US08380991B2 Hash function based on polymorphic code 有权
标题翻译：基于多态代码的哈希函数
公开(公告)号：US08380991B2
公开(公告)日：2013-02-19
申请号：US12433757
申请日：2009-04-30
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： H04L29/06
CPC分类号： H04L9/3236
摘要： In the field of computer data security, a hash process which is typically keyless and embodied in a computing apparatus is highly secure in terms of being resistant to attack. The hash process uses computer code (software) polymorphism, wherein computation of the hash value for a given message is partly dependent on the content (data) of the message. Hence the computer code changes dynamically while computing each hash value.
摘要翻译：在计算机数据安全领域，通常无钥匙和体现在计算设备中的散列过程在抵御攻击方面是高度安全的。散列过程使用计算机代码（软件）多态，其中给定消息的散列值的计算部分地取决于消息的内容（数据）。因此，计算机代码在计算每个散列值时动态变化。

85. 发明申请

US20120179919A1 SECURING IMPLEMENTATION OF A CRYPTOGRAPHIC PROCESS HAVING FIXED OR DYNAMIC KEYS 有权
标题翻译：保护具有固定或动态键的克隆过程的实施
公开(公告)号：US20120179919A1
公开(公告)日：2012-07-12
申请号：US12987931
申请日：2011-01-10
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： G06F12/14
CPC分类号： G06F21/602 , G06F21/72 , H04L9/0631 , H04L2209/046 , H04L2209/16 , H04L2209/24
摘要： In the field of computer enabled cryptography, such as a keyed block cipher having a plurality of rounds, the cipher is hardened against attack by protecting the round keys by (1) combining several cipher operations using a pair of sub-keys (round keys) into one table look-up, or (2) a key masking process which obscures the round keys by providing a masked version of the key operations for carrying out encryption or decryption using the cipher. This approach is especially advantageous in an insecure “White Box” environment where an attacker has full access to execution of the cipher algorithm, including the algorithm's internal state during its execution.
摘要翻译：在诸如具有多个回合的密钥分组密码的计算机启用密码学领域中，通过（1）使用一对子密钥（循环密钥）组合若干密码操作来保护循环密钥来加密密码，进入一个表查找，或者（2）通过提供用于使用密码进行加密或解密的密钥操作的掩蔽版本来掩盖轮密钥的密钥掩蔽处理。这种方法在不安全的“白盒”环境中特别有利，攻击者可以完全访问密码算法的执行，包括算法的执行过程中的内部状态。

86. 发明申请

US20110246787A1 OBFUSCATING TRANSFORMATIONS ON DATA ARRAY CONTENT AND ADDRESSES 有权
标题翻译：对数据阵列内容和地址进行变形
公开(公告)号：US20110246787A1
公开(公告)日：2011-10-06
申请号：US12753021
申请日：2010-04-01
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： G06F12/14
CPC分类号： G06F21/60 , G06F21/14 , G06F2221/2107 , G09C1/00 , H04L2209/04
摘要： In a first computer (digital) data obfuscation process, data which is conventionally arranged in a data structure called an array (e.g., a table) and conventionally stored in computer or computer device memory is obfuscated (masked) by logically or mathematically combining the data, entry-by-entry, with a masking value which is computed as a logical or mathematical function of the entry itself or its index in the array, modulo a security value. The complementary unmasking value is a pointer to the entry's address in the table modulo the security value. In a second computer (digital) data obfuscation process, the addresses (location designations) in memory of a data array are themselves obfuscated (masked) by partitioning the array into blocks of entries and shuffling the order of the data entries in each block by a predetermined algorithm, resulting in a shuffled array also differing from the original array in terms of its size (the total number of entries).
摘要翻译：在第一计算机（数字）数据混淆处理中，通过逻辑地或数学地组合数据来模拟（掩蔽）常规地被布置在被称为阵列（例如，一个表格）的数据结构中并且通常存储在计算机或计算机设备存储器中的数据逐个输入，具有屏蔽值，其被计算为条目本身的逻辑或数学函数或其阵列中的索引，模数为安全值。补充取消掩码值是指向该表中条目地址的指针，以模拟安全值。在第二计算机（数字）数据混淆处理中，数据阵列的存储器中的地址（位置指定）本身通过将阵列划分成条目块并将每个块中的数据条目的顺序按顺序排列（A）来进行混淆（掩蔽）预定的算法，导致在其大小（入口总数）方面与原始阵列不同的混洗阵列。

87. 发明申请

US20110055576A1 HASH FUNCTION USING A HEAP MODELING PROCESS 失效
标题翻译： HASH功能使用HEAP建模过程
公开(公告)号：US20110055576A1
公开(公告)日：2011-03-03
申请号：US12551267
申请日：2009-08-31
申请人： Augustin J. Farrugia , Benoit Chevallier-Mames , Mathieu Ciet
发明人： Augustin J. Farrugia , Benoit Chevallier-Mames , Mathieu Ciet
IPC分类号： H04L9/32
CPC分类号： H04L9/3236
摘要： This discloses, in the computer data security field, a cryptographic hash function process embodied in a computer system and which may be keyless, but is highly secure. The process is based on the type of randomness exhibited by a heap or stack of physical objects such as a heap of pieces of fruit and involves modeling the behavior of such a heap when pieces are removed from the heap. Computation of the hash value (digest) is thereby the result of executing a heap model algorithm using the message as an input to initialize the heap, then executing the heap model algorithm which logically models the process of serially removing objects (pieces of fruit) from the heap at various locations in the modeled heap.
摘要翻译：这在计算机数据安全领域中公开了一种体现在计算机系统中的加密哈希函数过程，其可以是无钥匙的，但是是高度安全的。该过程基于堆或堆栈的物理对象（例如一堆水果）所呈现的随机性的类型，并且涉及当从堆中移除碎片时对该堆的行为进行建模。因此，哈希值（摘要）的计算是使用消息作为输入来初始化堆的执行堆模型算法的结果，然后执行堆模型算法，其对从串行移除对象（水果）的过程进行逻辑建模堆在建模堆中的各个位置。

88. 发明申请

US20100304826A1 HASH FUNCTION USING A ROULETTE GAME PROCESS 审中-公开
标题翻译：使用ROULETTE游戏过程的HASH功能
公开(公告)号：US20100304826A1
公开(公告)日：2010-12-02
申请号：US12475353
申请日：2009-05-29
申请人： Benoit CHEVALLIER-MAMES , Mathieu Ciet , Augustin J. Farrugia
发明人： Benoit CHEVALLIER-MAMES , Mathieu Ciet , Augustin J. Farrugia
IPC分类号： A63F9/24
CPC分类号： H04L9/3236
摘要： In the computer data security field, a cryptographic hash function process embodied in a computer system and which is typically keyless, but is highly secure. The process is based on the type of randomness exhibited by the well known gambling game of roulette played on a roulette wheel involving dropping a ball onto a partitioned spinning wheel. The ball loses momentum and drops into one of the partitions (pockets) of the wheel. Computation of the hash value (digest) is the result of executing in a model (such as computer code or logic circuitry) such a game algorithm using the message as an input to the game algorithm, then executing the game algorithm. A state of the game (the final ball location) after a ball (or several balls) are played gives the hash digest value of the message.
摘要翻译：在计算机数据安全领域中，加密散列函数过程体现在计算机系统中，并且通常是无钥匙的，但是是高度安全的。这个过程是基于在轮盘赌上玩的轮盘赌的众所周知的赌博游戏展示的随机性类型，包括将球落在分隔的旋转轮上。球失去动量并落入车轮的一个分区（口袋）中。哈希值（摘要）的计算是在使用该消息作为游戏算法的输入的游戏算法的模型（诸如计算机代码或逻辑电路）中执行的结果，然后执行游戏算法。球（或几球）播放后的游戏状态（最终球位置）给出消息的散列摘要值。

89. 发明申请

US20090287942A1 CLOCK ROLL FORWARD DETECTION 有权
标题翻译：时钟滚动检测
公开(公告)号：US20090287942A1
公开(公告)日：2009-11-19
申请号：US12120146
申请日：2008-05-13
申请人： Pierre Betouin , Augustin J. Farrugia , Nicholas Sullivan
发明人： Pierre Betouin , Augustin J. Farrugia , Nicholas Sullivan
IPC分类号： G06F12/14
CPC分类号： G06F21/10 , G06F1/14 , G06F21/57 , G06F21/725 , G06F2221/2137 , G11B20/00086 , G11B20/0084
摘要： Method and apparatus to detect clock roll-forward attacks in a computing device or similar system. This protects against hackers who tamper with the system clock of, for instance, a digital media playback device in order to access a content item which has been rented for a limited time. By detecting clock roll-forward tampering, the present method and system prevent such hackers from accessing the content item outside its authorized rental time period.
摘要翻译：在计算设备或类似系统中检测时钟前滚攻击的方法和装置。这可防止篡改例如数字媒体播放设备的系统时钟的黑客，以便访问在有限时间内租用的内容项目。通过检测时钟前滚篡改，本方法和系统防止这些黑客在其授权租期之外访问该内容项。

90. 发明申请

US20090279691A1 SECURE DISTRIBUTION OF DATA OR CONTENT USING KEYLESS TRANSFORMATION 有权
标题翻译：使用无键转换安全地分发数据或内容
公开(公告)号：US20090279691A1
公开(公告)日：2009-11-12
申请号：US12118538
申请日：2008-05-09
申请人： Augustin J. Farrugia , Jean-Francois Riendeau , Mathieu Ciet
发明人： Augustin J. Farrugia , Jean-Francois Riendeau , Mathieu Ciet
IPC分类号： H04L9/28
CPC分类号： H04L9/3093 , H04L2209/08 , H04L2209/16 , H04L2209/603
摘要： A computer enabled method and apparatus for encrypting and decrypting data using a keyless transformation cryptographic technique. Data is protected using a keyless (unkeyed) complex mathematical transformation, in contrast to a traditional cryptographic algorithm using a secret key. This approach is resistant to both static analysis (hacking) performed on executable encryption/decryption code, as well as dynamic analysis performed during execution (runtime) of ciphering or deciphering. The method uses a family of asymmetric data transformations based on Galois field polynomials.
摘要翻译：一种使用无钥匙转换加密技术加密和解密数据的计算机启用的方法和装置。与使用秘密密钥的传统加密算法相比，使用无钥匙（无钥匙）复杂数学变换来保护数据。这种方法对于在可执行加密/解密代码上执行的静态分析（黑客）以及在加密或解密的执行（运行时）期间执行的动态分析都是耐受的。该方法使用基于伽罗瓦域多项式的非对称数据变换族。

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