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1. 发明授权

US08756434B2 System and method for executing an encrypted binary from a memory pool 有权
标题翻译：从内存池执行加密二进制的系统和方法
公开(公告)号：US08756434B2
公开(公告)日：2014-06-17
申请号：US13083497
申请日：2011-04-08
申请人： Ganna Zaks , Pierre Betouin , Augustin J. Farrugia , Julien Lerouge , Jon McLachlan , Gideon M. Myles , Cédric Tessier
发明人： Ganna Zaks , Pierre Betouin , Augustin J. Farrugia , Julien Lerouge , Jon McLachlan , Gideon M. Myles , Cédric Tessier
IPC分类号： G06F12/14
CPC分类号： G06F12/1408 , G06F21/51 , G06F21/602 , G06F21/71 , G06F21/72
摘要： Disclosed herein are systems, methods, and non-transitory computer-readable storage media for executing encrypted computer code. A system configured to practice the method receives a request to execute encrypted computer code. In response to the request, the system identifies a portion of the encrypted computer code for execution and decrypts the portion to yield decrypted computer code. Then the system stores the decrypted computer code in a pool of memory and executes the decrypted computer code from the pool of memory. The system can store the decrypted computer code in the pool of memory based on a randomization algorithm so that identical executions of the encrypted computer code result in selections of different available memory locations within the pool of memory. Related portions can be stored non-consecutively in the pool of memory. The pool of memory can store different portions of decrypted computer code over time.
摘要翻译：这里公开了用于执行加密的计算机代码的系统，方法和非暂时的计算机可读存储介质。配置为执行该方法的系统接收执行加密的计算机代码的请求。响应于该请求，系统识别加密的计算机代码的一部分用于执行，并解密部分以产生解密的计算机代码。然后，系统将解密的计算机代码存储在存储器池中，并从存储器池中执行解密的计算机代码。系统可以基于随机化算法将解密的计算机代码存储在存储器池中，使得加密的计算机代码的相同执行导致在存储器池内的不同可用存储器位置的选择。相关部分可以非连续地存储在存储器池中。内存池可以随时间存储解密的计算机代码的不同部分。

2. 发明申请

US20130014267A1 COMPUTER PROTOCOL GENERATION AND OBFUSCATION 审中-公开
标题翻译：计算机协议生成和欺骗
公开(公告)号：US20130014267A1
公开(公告)日：2013-01-10
申请号：US13178383
申请日：2011-07-07
申请人： Augustin J. FARRUGIA , Mathieu CIET , Pierre BETOUIN
发明人： Augustin J. FARRUGIA , Mathieu CIET , Pierre BETOUIN
IPC分类号： G06F21/00
CPC分类号： H04L63/0428 , G06F21/14 , H04L69/03
摘要： In the field of computer science, communications protocols (such as computer network protocols) are hardened (secured) against reverse engineering attacks by hackers using a software tool which is applied to a high level definition of the protocol. The tool converts the definition to executable form, such as computer source code, and also applies reverse-engineering countermeasures to the protocol definition as now expressed in source code, to prevent hackers from recovering useful details of the protocol. This conversion process also allows preservation of backwards version compatibility of the protocol definition.
摘要翻译：在计算机科学领域，通信协议（例如计算机网络协议）被黑客强化（安全）以防止黑客利用应用于协议的高级别定义的软件工具进行逆向工程攻击。该工具将定义转换为可执行形式，例如计算机源代码，并且还对源代码中表示的协议定义应用反向工程对策，以防止黑客恢复协议的有用细节。此转换过程还允许保留协议定义的向后版本兼容性。

3. 发明申请

US20120260102A1 SYSTEM AND METHOD FOR EXECUTING AN ENCRYPTED BINARY FROM A MEMORY POOL 有权
标题翻译：从记忆池执行加密二进制的系统和方法
公开(公告)号：US20120260102A1
公开(公告)日：2012-10-11
申请号：US13083497
申请日：2011-04-08
申请人： Ganna Zaks , Pierre Betouin , Augustin J. Farrugia , Julien Lerouge , Jon McLachlan , Gideon M. Myles , Cédric Tessier
发明人： Ganna Zaks , Pierre Betouin , Augustin J. Farrugia , Julien Lerouge , Jon McLachlan , Gideon M. Myles , Cédric Tessier
IPC分类号： G06F12/14
CPC分类号： G06F12/1408 , G06F21/51 , G06F21/602 , G06F21/71 , G06F21/72
摘要： Disclosed herein are systems, methods, and non-transitory computer-readable storage media for executing encrypted computer code. A system configured to practice the method receives a request to execute encrypted computer code. In response to the request, the system identifies a portion of the encrypted computer code for execution and decrypts the portion to yield decrypted computer code. Then the system stores the decrypted computer code in a pool of memory and executes the decrypted computer code from the pool of memory. The system can store the decrypted computer code in the pool of memory based on a randomization algorithm so that identical executions of the encrypted computer code result in selections of different available memory locations within the pool of memory. Related portions can be stored non-consecutively in the pool of memory. The pool of memory can store different portions of decrypted computer code over time.
摘要翻译：这里公开了用于执行加密的计算机代码的系统，方法和非暂时的计算机可读存储介质。配置为执行该方法的系统接收执行加密的计算机代码的请求。响应于该请求，系统识别加密的计算机代码的一部分用于执行，并解密部分以产生解密的计算机代码。然后，系统将解密的计算机代码存储在存储器池中，并从存储器池中执行解密的计算机代码。系统可以基于随机化算法将解密的计算机代码存储在存储器池中，使得加密的计算机代码的相同执行导致在存储器池内的不同可用存储器位置的选择。相关部分可以非连续地存储在存储器池中。内存池可以随时间存储解密的计算机代码的不同部分。

4. 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。

5. 发明授权

US08874928B2 System and method for obfuscating constants in a computer program 有权
标题翻译：用于在计算机程序中模糊常数的系统和方法
公开(公告)号：US08874928B2
公开(公告)日：2014-10-28
申请号：US12263183
申请日：2008-10-31
申请人： Pierre Betouin , Mathieu Ciet , Augustin J. Farrugia
发明人： Pierre Betouin , Mathieu Ciet , Augustin J. Farrugia
IPC分类号： G06F11/30 , G06F12/14 , G06F21/12 , G06F9/45
CPC分类号： G06F21/125 , G06F8/41 , G06F8/42 , G06F8/427 , G06F8/433 , G06F8/434
摘要： Disclosed herein are systems, computer-implemented methods, and tangible computer-readable media for obfuscating constants in a binary. The method includes generating a table of constants, allocating an array in source code, compiling the source code to a binary, transforming the table of constants to match Pcode entries in an indirection table so that each constant in the table of constants can be fetched by an entry in the indirection table. A Pcode is a data representation of a set of instructions populating the indirection table with offsets toward the table of constants storing the indirection table in the allocated array in the compiled binary. The method further includes populating the indirection table with offsets equivalent to the table of constants, and storing the indirection table in the allocated array in the compiled binary. Constants can be of any data type. Constants can be one byte each or more than one byte each. In one aspect, the method further includes splitting constants into two or more segments, treating each segment as a separate constant when transforming the table of constants, and generating a function to retrieve and reconstruct the split constants.
摘要翻译：这里公开的是系统，计算机实现的方法和用于在二进制文件中混淆常数的有形计算机可读介质。该方法包括生成常量表，在源代码中分配数组，将源代码编译为二进制，将常数表变换为匹配间接表中的Pcode条目，以使常数表中的每个常数可以由间接表中的条目。 Pcode是填充间接表的一组指令的数据表示，其具有偏向于在编译的二进制文件中分配的阵列中存储间接表的常数表的偏移。该方法还包括使用与常数表相当的偏移量来填充间接表，并将该间接表存储在编译后的二进制数组中。常量可以是任何数据类型。常量可以是一个字节，也可以是一个以上的字节。在一个方面，该方法还包括将常数分成两个或更多个段，当变换常数表时，将每个段作为单独的常数来处理，以及生成检索和重构分裂常数的函数。

6. 发明授权

US08407248B2 System and method for authentication using a shared table and sorting exponentiation 有权
标题翻译：使用共享表进行身份验证的系统和方法，并排序求幂
公开(公告)号：US08407248B2
公开(公告)日：2013-03-26
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： G06F7/00 , G06F17/30
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。

7. 发明申请

US20120284688A1 SYSTEM AND METHOD FOR BLURRING INSTRUCTIONS AND DATA VIA BINARY OBFUSCATION 有权
标题翻译：用于通过二进制补偿来引导指令和数据的系统和方法
公开(公告)号：US20120284688A1
公开(公告)日：2012-11-08
申请号：US13100041
申请日：2011-05-03
申请人： Jon McLachlan , Ganna Zaks , Julien Lerouge , Pierre Betouin , Augustin J. Farrugia , Gideon M. Myles , Cédric Tessier
发明人： Jon McLachlan , Ganna Zaks , Julien Lerouge , Pierre Betouin , Augustin J. Farrugia , Gideon M. Myles , Cédric Tessier
IPC分类号： G06F9/44
CPC分类号： G06F21/14 , G06F21/125
摘要： Disclosed herein are systems, methods, and non-transitory computer-readable storage media for obfuscating a computer program. A system configured to practice the method identifies a set of executable instructions at a first location in an instruction section of the computer program and identifies a second location in a data section of the computer program. Then the system moves the set of executable instructions to the second location and patches references in the computer program to the set of executable instructions to point to the second location. The instruction section of the computer program can be labeled as _TEXT,_text and the data section of the computer program is labeled as _DATA,_data. The set of executable instructions can include one or more non-branching instructions optionally followed by a branching instruction. The placement of the first and second locations can be based on features of a target computing architecture, such as cache size.
摘要翻译：本文公开了用于模糊计算机程序的系统，方法和非暂时的计算机可读存储介质。被配置为练习该方法的系统在计算机程序的指令部分中的第一位置识别一组可执行指令，并且识别计算机程序的数据部分中的第二位置。然后系统将可执行指令集移动到第二位置，并将计算机程序中的引用修补到指向第二位置的可执行指令集。计算机程序的指令部分可以标记为_TEXT，_text，计算机程序的数据部分标记为_DATA，_data。该可执行指令集可以包括一个或多个非分支指令，可选地跟随分支指令。第一和第二位置的放置可以基于诸如高速缓存大小的目标计算架构的特征。

8. 发明申请

US20110167414A1 SYSTEM AND METHOD FOR OBFUSCATION BY COMMON FUNCTION AND COMMON FUNCTION PROTOTYPE 有权
标题翻译：通过共同功能和常用功能原型进行OBFUSCING的系统和方法
公开(公告)号：US20110167414A1
公开(公告)日：2011-07-07
申请号：US12651953
申请日：2010-01-04
申请人： Christopher Arthur Lattner , Tanya Michelle Lattner , Julien Lerouge , Ginger M. Myles , Augustin J. Farrugia , Pierre Betouin
发明人： Christopher Arthur Lattner , Tanya Michelle Lattner , Julien Lerouge , Ginger M. Myles , Augustin J. Farrugia , Pierre Betouin
IPC分类号： G06F9/45
CPC分类号： G06F8/70 , G06F21/14
摘要： Disclosed herein are systems, methods, and computer-readable storage media for obfuscating by a common function. A system configured to practice the method identifies a set of functions in source code, generates a transformed set of functions by transforming each function of the set of functions to accept a uniform set of arguments and return a uniform type, and merges the transformed set of functions into a single recursive function. The single recursive function can allocate memory in the heap. The stack can contain a pointer to the allocated memory in the heap. The single recursive function can include instructions for creating and explicitly managing a virtual stack in the heap. The virtual stack can emulate what would happen to the real stack if one of the set of functions was called. The system can further compile the source code including the single recursive function.
摘要翻译：本文公开了用于通过共同功能进行混淆的系统，方法和计算机可读存储介质。被配置为实施该方法的系统识别源代码中的一组函数，通过将函数集合的每个函数变换为接受统一的参数集合并返回统一类型来生成变换的函数集合，并且将经变换的集合函数转换为单个递归函数。单个递归函数可以在堆中分配内存。堆栈可以包含指向堆中分配的内存的指针。单个递归函数可以包括用于创建和显式管理堆中的虚拟堆栈的说明。如果调用了一组函数，虚拟堆栈可以模拟真实堆栈将会发生什么。该系统可以进一步编译包含单个递归函数的源代码。

9. 发明申请

US20100153450A1 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：US20100153450A1
公开(公告)日：2010-06-17
申请号：US12334732
申请日：2008-12-15
申请人： Pierre Betouin , Mathieu Ciet , Augustin J. Farrugia
发明人： Pierre Betouin , Mathieu Ciet , Augustin J. Farrugia
IPC分类号： G06F17/30
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。

10. 发明申请

US20090282245A1 SECURITY METHOD AND SYSTEM FOR MEDIA PLAYBACK DEVICES 有权
标题翻译：媒体播放设备的安全方法和系统
公开(公告)号：US20090282245A1
公开(公告)日：2009-11-12
申请号：US12118526
申请日：2008-05-09
申请人： Augustin J. FARRUGIA , Mathieu Ciet , Pierre Betouin
发明人： Augustin J. FARRUGIA , Mathieu Ciet , Pierre Betouin
IPC分类号： H04L9/06
CPC分类号： H04L9/3263 , G06F21/10 , G06F2221/0704 , G06F2221/0753 , H04L2209/16 , H04L2209/603
摘要： A Digital Rights Management (DRM) system for distribution of digital content such as audio or video uses a method to enhance security of the content from unauthorized access and use, including access by unauthorized players. The method does not necessarily require a token exchange and thereby minimizes storage demands on the server which distributes the digital content. The system generates and distributes keys for decryption of the digital content whereby the keys are unique to a specific player and user account.
摘要翻译：用于分发诸如音频或视频的数字内容的数字版权管理（DRM）系统使用一种方法来增强内容的未经授权的访问和使用的安全性，包括未经授权的玩家的访问。该方法不一定需要令牌交换，从而最小化分发数字内容的服务器上的存储需求。该系统生成和分发用于数字内容的解密的密钥，由此密钥对于特定的玩家和用户帐户是唯一的。

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