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1. 发明授权

US08225077B2 Obfuscation device for generating a set of obfuscated instructions, processing device, method, program, and integrated circuit thereof 有权
标题翻译：用于产生一组模糊化指令的混淆装置，处理装置，方法，程序及其集成电路
公开(公告)号：US08225077B2
公开(公告)日：2012-07-17
申请号：US12409756
申请日：2009-03-24
申请人： Taichi Sato , Tomoyuki Haga , Kenichi Matsumoto , Akito Monden , Haruaki Tamada
发明人： Taichi Sato , Tomoyuki Haga , Kenichi Matsumoto , Akito Monden , Haruaki Tamada
IPC分类号： G06F9/00
CPC分类号： G06F21/52
摘要： An obfuscation device includes a first instruction generating unit, for each of a first process and a second process, which generates an initialization instruction for securing a management area for managing identification information indicating an instruction block that should be executed next so as to proceed with the process. Further, a second instruction generating unit generates a selection instruction (i) to make a first selection selecting a process that should be proceeded out of the first process and the second process, (ii) to make a second selection selecting an instruction block indicated by the identification information managed in the management area as an instruction block that should be executed for proceeding with the process selected by the first selection, and (iii) to cause the execution device to execute the instruction block selected by the second selection, and stores the selection instruction in a storage unit.
摘要翻译：混淆装置包括第一指令生成单元，用于第一处理和第二处理中的每一个，其生成用于保护管理区域的初始化指令，用于管理指示下一个应执行的指令块的识别信息，以便继续进行处理。此外，第二指令生成单元生成选择指令（i），进行选择应从第一处理和第二处理开始的处理的第一选择，（ii）进行第二选择，选择由在管理区域中管理的识别信息作为用于进行由第一选择选择的处理而执行的指令块，以及（iii）使执行装置执行由第二选择选择的指令块，并且存储存储单元中的选择指令。

2. 发明申请

US20090235088A1 Program conversion device, execution support device, and method and computer program for the same 审中-公开
标题翻译：程序转换设备，执行支持设备，方法和计算机程序相同
公开(公告)号：US20090235088A1
公开(公告)日：2009-09-17
申请号：US11921908
申请日：2006-06-08
申请人： Haruaki Tamada , Akito Monden , Masahide Nakamura , Kenichi Matsumoto
发明人： Haruaki Tamada , Akito Monden , Masahide Nakamura , Kenichi Matsumoto
IPC分类号： G06F21/22
CPC分类号： G06F21/14
摘要： A method invocation modification unit modifies method invocation described in a body program to dynamic invocation and modifies the method invocation to invocation via an execution support device. An encryption unit modifies the body program by encrypting a character string designating the dynamic invocation after modification by the method invocation modification unit. Therefore, the method invocation can be hidden and understanding of the program can be made difficult.
摘要翻译：方法调用修改单元将身体程序中描述的方法调用修改为动态调用，并通过执行支持设备将方法调用修改为调用。加密单元通过在由方法调用修改单元修改之后加密指定动态调用的字符串来修改身体程序。因此，可以隐藏方法调用，难以理解程序。

3. 发明申请

US20090254738A1 OBFUSCATION DEVICE, PROCESSING DEVICE, METHOD, PROGRAM, AND INTEGRATED CIRCUIT THEREOF 有权
标题翻译： OBFUSCATION设备，处理设备，方法，程序及其集成电路
公开(公告)号：US20090254738A1
公开(公告)日：2009-10-08
申请号：US12409756
申请日：2009-03-24
申请人： Taichi SATO , Tomoyuki Haga , Kenichi Matsumoto , Akito Monden , Haruaki Tamada
发明人： Taichi SATO , Tomoyuki Haga , Kenichi Matsumoto , Akito Monden , Haruaki Tamada
IPC分类号： G06F9/30
CPC分类号： G06F21/52
摘要： It is an object of the present invention to provide an obfuscation device that can achieve both sufficient obfuscation and the appropriate instruction block to be executed. In the obfuscation device, a first instruction generating unit, for each of the first process and the second process, generates an initialization instruction for securing a management area for managing the identification information indicating an instruction block that should be executed next so as to proceed with the process, and to store the initialization instruction in said storage unit. Further, a second instruction generating unit generates a selection instruction (i) to make a first selection selecting a process that should be proceeded out of the first process and the second process, (ii) to make a second selection selecting an instruction block indicated by the identification information managed in the management area as an instruction block that should be executed for proceeding with the process selected by the first selection, and (iii) to cause the execution device to execute the instruction block selected by the second selection, and stores the selection instruction in said storage unit. Furthermore, a third instruction generating unit generates an updating instruction for updating, when the second process is selected by the first selection, and when the loop instruction included in the second process is executed, the identification information regarding the first process managed in the management area to identification information indicating an instruction block to be executed next in the first process which is subsequently selected by the first selection, and to store the updating instruction in said storage unit.
摘要翻译：本发明的目的是提供一种能够实现充分混淆和适当指令块的混淆装置。在该混淆装置中，对于第一处理和第二处理中的每一个，第一指示生成部生成用于确保管理区域的初始化指示，该管理区用于管理指示下一个执行的指令块的识别信息，并且将初始化指令存储在所述存储单元中。此外，第二指令生成单元生成选择指令（i），进行选择应从第一处理和第二处理开始的处理的第一选择，（ii）进行第二选择，选择由在管理区域中管理的识别信息作为用于进行由第一选择选择的处理而执行的指令块，以及（iii）使执行装置执行由第二选择选择的指令块，并且存储所述存储单元中的选择指令。此外，当通过第一选择选择第二处理时，第三指令生成单元生成用于更新的更新指令，并且当执行包括在第二处理中的循环指令时，关于管理区域中管理的第一处理的识别信息指示在第一处理中接下来要执行的指令块的指示块，其随后由第一选择选择，并将更新指令存储在所述存储单元中。

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