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1. 发明申请

US20110138351A1 METHOD AND DEVICE FOR CODE OBFUSCATION 有权
标题翻译：用于代码欺骗的方法和设备
公开(公告)号：US20110138351A1
公开(公告)日：2011-06-09
申请号：US12737730
申请日：2009-08-17
申请人： Antoine Monsifrot , Fabien Lahoudere
发明人： Antoine Monsifrot , Fabien Lahoudere
IPC分类号： G06F9/44
CPC分类号： G06F21/14
摘要： Compiled computer code comprising computer code instructions organised in a plurality of basic blocks is obfuscated by replacing a jump instruction in a first basic block with a function call with at least one parameter, wherein the function call when executed determines the address of the next function to execute in dependence on the parameter; inserting into the compiled computer code an instruction that allocates a value to the parameter, the value being such that the address determined by the function call corresponds to the address of the replace jump instruction. The allocation function is inserted into the computer code in a second basic block, different from the first basic block, preferably using information from a control flow graph. This can ensure that the obfuscated code cannot be disassembled without information from the CFG, while the CFG cannot be generated from the obfuscated code. Also provided is a device for code obfuscation.
摘要翻译：包括组织在多个基本块中的计算机代码指令的编译计算机代码通过用具有至少一个参数的函数调用替换第一基本块中的跳转指令而被模糊化，其中当执行时的函数调用将下一个函数的地址确定为根据参数执行; 在编译的计算机代码中插入向参数分配值的指令，该值指示由功能调用确定的地址对应于替换跳转指令的地址。分配功能被插入到与第一基本块不同的第二基本块中的计算机代码中，优选地使用来自控制流程图的信息。这样可以确保在没有来自CFG的信息的情况下，混淆代码不能被拆卸，而不能从混淆代码生成CFG。还提供了一种用于代码混淆的设备。

2. 发明授权

US08762966B2 Method and device for code obfuscation 有权
标题翻译：代码混淆的方法和设备
公开(公告)号：US08762966B2
公开(公告)日：2014-06-24
申请号：US12737730
申请日：2009-08-17
申请人： Antoine Monsifrot , Fabien Lahoudere
发明人： Antoine Monsifrot , Fabien Lahoudere
IPC分类号： G06F9/45
CPC分类号： G06F21/14
摘要： Compiled computer code comprising computer code instructions organized in a plurality of basic blocks is obfuscated by replacing a jump instruction in a first basic block with a function call with at least one parameter, wherein the function call when executed determines the address of the next function to execute in dependence on the parameter; inserting into the compiled computer code an instruction that allocates a value to the parameter, the value being such that the address determined by the function call corresponds to the address of the replace jump instruction. The allocation function is inserted into the computer code in a second basic block, different from the first basic block, preferably using information from a control flow graph. This can ensure that the obfuscated code cannot be disassembled without information from the CFG, while the CFG cannot be generated from the obfuscated code. Also provided is a device for code obfuscation.
摘要翻译：包含组织在多个基本块中的计算机代码指令的编译计算机代码通过用具有至少一个参数的函数调用替换第一基本块中的跳转指令来进行混淆，其中当执行时的功能调用将下一功能的地址确定为根据参数执行; 在编译的计算机代码中插入向参数分配值的指令，该值指示由函数调用确定的地址对应于替换跳转指令的地址。分配功能被插入到与第一基本块不同的第二基本块中的计算机代码中，优选地使用来自控制流程图的信息。这样可以确保在没有来自CFG的信息的情况下，混淆代码不能被拆卸，而不能从混淆代码生成CFG。还提供了一种用于代码混淆的设备。

3. 发明授权

US09471758B2 Method, a device and a computer program support for verification of checksums for self-modified computer code 有权
标题翻译：方法，设备和计算机程序支持验证自修改计算机代码的校验和
公开(公告)号：US09471758B2
公开(公告)日：2016-10-18
申请号：US12932041
申请日：2011-02-16
申请人： Charles Salmon-Legagneur , Antoine Monsifrot
发明人： Charles Salmon-Legagneur , Antoine Monsifrot
IPC分类号： G06F11/30 , G06F12/14 , G06F21/14 , G06F21/54
CPC分类号： G06F21/14 , G06F21/54
摘要： A function of a software program is stored in a memory during execution in a device of the software program. A processor relocates the function in a region of the memory comprising dummy code, transforms the dummy code in a predictable manner, generates a predicted checksum for the region based on a previous checksum, generates a calculated checksum over the region, and verifies the integrity of the function by comparing the predicted checksum and the calculated checksum. Also provided are a device and a computer program product.
摘要翻译：在软件程序的设备中执行期间，将软件程序的功能存储在存储器中。处理器将功能重新定位在包含虚拟代码的存储器的区域中，以可预测的方式转换虚拟代码，基于先前的校验和生成针对该区域的预测校验和，在该区域上生成计算的校验和，并且验证该功能通过比较预测的校验和和计算的校验和。还提供了一种设备和计算机程序产品。

4. 发明授权

US08341426B2 Methods and devices for instruction level software encryption 有权
标题翻译：用于指令级软件加密的方法和设备
公开(公告)号：US08341426B2
公开(公告)日：2012-12-25
申请号：US12653224
申请日：2009-12-10
申请人： Stéphane Onno , Mohamed Karroumi , Antoine Monsifrot
发明人： Stéphane Onno , Mohamed Karroumi , Antoine Monsifrot
IPC分类号： G06F12/14
CPC分类号： G06F21/14 , G06F21/125 , G06F2221/2107 , H01L2924/30107 , H04L9/0637 , H04L9/0656 , H01L2924/00
摘要： A method of encrypting compiled computer code instructions to be decrypted instruction by instruction during execution. The computer code instructions are encrypted using a chaining mode so that an encrypted instruction depends on the values of the instruction, the value of the preceding instruction and a pseudo-random number. As it may happen that the instruction can be arrived at from more than one preceding instruction, at least one of the preceding instructions is associated with a random number compensator for use during decryption of the encrypted instruction, so that the decryption of the encrypted instruction yields the same result regardless of which the preceding instruction was. Also provided are an encryption device, a decryption device and method, and a digital support medium storing encrypted compiled computer code instructions.
摘要翻译：在执行期间通过指令加密编译的计算机代码指令以进行解密指令的方法。使用链接模式来加密计算机代码指令，使得加密指令取决于指令的值，前一条指令的值和伪随机数。可能发生的是，可以从多于一个的先前指令得到指令，所述前述指令中的至少一个与加密指令的解密期间使用的随机数补偿器相关联，从而加密指令的解密产生相同的结果，不管前面的说明是什么。还提供了加密装置，解密装置和方法以及存储加密编译的计算机代码指令的数字支持介质。

5. 发明授权

US08259934B2 Methods and devices for a chained encryption mode 有权
标题翻译：用于链接加密模式的方法和设备
公开(公告)号：US08259934B2
公开(公告)日：2012-09-04
申请号：US12592696
申请日：2009-12-01
申请人： Mohamed Karroumi , Stéphane Onno , Antoine Monsifrot
发明人： Mohamed Karroumi , Stéphane Onno , Antoine Monsifrot
IPC分类号： H04K1/00
CPC分类号： H04L9/0637 , H04L2209/24
摘要： An encryption chaining mode takes plaintext block N, generates encryption key N by combining, preferably by XOR, encryption key N-1 and plaintext block N-1 and encrypts plaintext block N using an encryption algorithm with encryption key N to output ciphertext block N. Encryption key for the first plaitnext block is generated by XOR-ing a random Initialization vector and a random intialization key K. In a preferred embodiment, initialization key K is subkeys resulting form a key schedule algorithm and encryption key N-1 is only one of the subkeys. Encryption key for the first plaintext block is generated by XOR-ing a random Initialization vector and one subkey resulting form a key schedule algorithm. Also provided is a corresponding decryption method, an encryption device, a decryption device.
摘要翻译：加密链接模式采用明文块N，优选地通过XOR，加密密钥N-1和明文块N-1组合来生成加密密钥N，并且使用具有加密密钥N的加密算法加密明文块N.以输出密文块N. 通过对随机初始化向量和随机初始化密钥K进行XOR生成，生成第一第一嵌段的加密密钥。在优选实施例中，初始化密钥K是由密钥调度算法产生的子密钥，加密密钥N-1仅为子项。第一个明文块的加密密钥是由一个随机的初始化向量和一个子密钥进行XOR生成的，形成密钥调度算法。还提供了相应的解密方法，加密装置，解密装置。

6. 发明申请

US20110202996A1 Method and apparatus for verifying the integrity of software code during execution and apparatus for generating such software code 审中-公开
标题翻译：用于在执行期间验证软件代码的完整性的方法和装置以及用于生成这样的软件代码的装置
公开(公告)号：US20110202996A1
公开(公告)日：2011-08-18
申请号：US12931982
申请日：2011-02-15
申请人： Antoine Monsifrot , Charles Salmon-Legagneur
发明人： Antoine Monsifrot , Charles Salmon-Legagneur
IPC分类号： G06F11/00
CPC分类号： G06F11/28 , G06F21/125
摘要： Self-modifying software code comprising a number of modules that each may be modified to be in a plurality of states during execution. In order to verify the integrity of such code, the different states of the code are calculated. For each state a checksum, e.g. a hash value, is generated for at least part of the code. During execution the state of the code is changed, modifying a module, and an integrity check is performed using the checksum for the state of the code. The checksum may be stored in a look-up table or it may be embedded in the integrity verification function. A state variable indicating the state of the modules may be used to look-up the checksum in the table. Possible states of a module is encrypted and decrypted. Also provided is an apparatus for generating protected software code.
摘要翻译：自修改软件代码包括多个模块，每个模块在执行期间可被修改为处于多个状态。为了验证这种代码的完整性，计算代码的不同状态。对于每个状态，校验和，例如为代码的至少一部分生成哈希值。在执行期间，代码的状态改变，修改模块，并使用代码状态的校验和执行完整性检查。校验和可以存储在查找表中，也可以嵌入到完整性验证功能中。指示模块状态的状态变量可用于查找表中的校验和。对模块的可能状态进行加密和解密。还提供了一种用于生成受保护的软件代码的装置。

7. 发明申请

US20130318624A1 METHOD AND DEVICE FOR CONTROLLING DISTRIBUTION OF LICENSES 审中-公开
标题翻译：用于控制许可证分发的方法和装置
公开(公告)号：US20130318624A1
公开(公告)日：2013-11-28
申请号：US13984068
申请日：2012-02-06
申请人： Antoine Monsifrot , Gwenael Doerr , Olivier Courtay , Antoine Robert , Marc Joye
发明人： Antoine Monsifrot , Gwenael Doerr , Olivier Courtay , Antoine Robert , Marc Joye
IPC分类号： G06F21/10
CPC分类号： G06F21/105 , G06F21/10
摘要： A method for controlling distribution of licenses, a license being for an excerpt of a content item, the content item comprising a set of continuous units, each excerpt comprising a subset of the set of continuous units, A device receives an identifier of a receiver of a license, and the license or a request to generate the license, the license or the request to generate the license comprising a content identifier and at least one indicator of the units covered by the license; retrieves stored information regarding licenses previously delivered to the receiver; compares a limit value for the content item with the stored information combined with information from the license or the request to generate the license; and allows the receiver access to the license only if the limit value is not exceeded by the stored information combined with information from the license or the request to generate the license Also provided is the device.
摘要翻译：一种用于控制许可证分发的方法，用于内容项目摘录的许可证，所述内容项目包括一组连续单元，每个摘录包括所述一组连续单元的子集。设备接收所述连续单元的接收者的标识符许可证，许可证或产生许可证的请求，许可证或生成许可证的请求，其包括内容标识符和许可证所涵盖的单元的至少一个指示符; 检索关于先前传送给接收者的许可证的存储信息; 将内容项的限制值与存储的信息结合来自许可证的信息或生成许可证的请求进行比较; 并且只有当存储的信息与来自许可证的信息或生成许可证的请求相结合的限制值不超过时，才允许接收者访问许可证。还提供了该设备。

8. 发明申请

US20110258516A1 Method, a device and a computer program support for verification of checksums for self-modified computer code 有权
标题翻译：方法，设备和计算机程序支持验证自修改计算机代码的校验和
公开(公告)号：US20110258516A1
公开(公告)日：2011-10-20
申请号：US12932041
申请日：2011-02-16
申请人： Charles Salmon-Legagneur , Antoine Monsifrot
发明人： Charles Salmon-Legagneur , Antoine Monsifrot
IPC分类号： G06F11/10
CPC分类号： G06F21/14 , G06F21/54
摘要： A function of a software program is stored in a memory during execution in a device of the software program. A processor relocates the function in a region of the memory comprising dummy code, transforms the dummy code in a predictable manner, generates a predicted checksum for the region based on a previous checksum, generates a calculated checksum over the region, and verifies the integrity of the function by comparing the predicted checksum and the calculated checksum. Also provided are a device and a computer program product.
摘要翻译：在软件程序的设备中执行期间，将软件程序的功能存储在存储器中。处理器将功能重新定位在包含虚拟代码的存储器的区域中，以可预测的方式转换虚拟代码，基于先前的校验和生成针对该区域的预测校验和，在该区域上生成计算的校验和，并且验证该功能通过比较预测的校验和和计算的校验和。还提供了一种设备和计算机程序产品。

9. 发明申请

US20100153745A1 Methods and devices for instruction level software encryption 有权
标题翻译：用于指令级软件加密的方法和设备
公开(公告)号：US20100153745A1
公开(公告)日：2010-06-17
申请号：US12653224
申请日：2009-12-10
申请人： Stéphane Onno , Mohamed Karroumi , Antoine Monsifrot
发明人： Stéphane Onno , Mohamed Karroumi , Antoine Monsifrot
IPC分类号： G06F21/00
CPC分类号： G06F21/14 , G06F21/125 , G06F2221/2107 , H01L2924/30107 , H04L9/0637 , H04L9/0656 , H01L2924/00
摘要： A method of encrypting compiled computer code instructions to be decrypted instruction by instruction during execution. The computer code instructions are encrypted using a chaining mode so that an encrypted instruction depends on the values of the instruction, the value of the preceding instruction and a pseudo-random number. As it may happen that the instruction can be arrived at from more than one preceding instruction, at least one of the preceding instructions is associated with a random number compensator for use during decryption of the encrypted instruction, so that the decryption of the encrypted instruction yields the same result regardless of which the preceding instruction was. Also provided are an encryption device, a decryption device and method, and a digital support medium storing encrypted compiled computer code instructions.
摘要翻译：在执行期间通过指令加密编译的计算机代码指令以进行解密指令的方法。使用链接模式来加密计算机代码指令，使得加密指令取决于指令的值，前一条指令的值和伪随机数。可能发生的是，可以从多于一个的先前指令得到指令，所述前述指令中的至少一个与加密指令的解密期间使用的随机数补偿器相关联，从而加密指令的解密产生相同的结果，不管前面的说明是什么。还提供了加密装置，解密装置和方法以及存储加密编译的计算机代码指令的数字支持介质。

10. 发明申请

US20100150344A1 Methods and devices for a chained encryption mode 有权
标题翻译：用于链接加密模式的方法和设备
公开(公告)号：US20100150344A1
公开(公告)日：2010-06-17
申请号：US12592696
申请日：2009-12-01
申请人： Mohamed Karroumi , Stéphane Onno , Antoine Monsifrot
发明人： Mohamed Karroumi , Stéphane Onno , Antoine Monsifrot
IPC分类号： H04L9/14
CPC分类号： H04L9/0637 , H04L2209/24
摘要： An encryption chaining mode takes plaintext block N, generates encryption key N by combining, preferably by XOR, encryption key N−1 and plaintext block N−1 and encrypts plaintext block N using an encryption algorithm with encryption key N to output ciphertext block N. Encryption key for the first plaintext block is generated by XOR-ing a random Initialization vector and a random initialization key K. In a preferred embodiment, initialization key K is subkeys resulting from a key schedule algorithm and encryption key N−1 is only one of the subkeys. Encryption key for the first plaintext block is generated by XOR-ing a random Initialization vector and one subkey resulting from a key schedule algorithm. Also provided is a corresponding decryption method, an encryption device, a decryption device.
摘要翻译：加密链接模式采用明文块N，优选地通过XOR，加密密钥N-1和明文块N-1组合来生成加密密钥N，并且使用具有加密密钥N的加密算法对明文块N进行加密，以输出密文块N. 通过对随机初始化向量和随机初始化密钥K进行XOR生成第一明文块的加密密钥。在优选实施例中，初始化密钥K是由密钥调度算法产生的子密钥，加密密钥N-1只是子项。通过对由密钥调度算法产生的随机初始化向量和一个子密钥进行XOR生成第一明文块的加密密钥。还提供了相应的解密方法，加密装置，解密装置。

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