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1. 发明申请

WO2008085922A2 SOFTWARE OR OTHER INFORMATION INTEGRITY VERIFICATION USING VARIABLE BLOCK LENGTH AND SELECTION 审中-公开
标题翻译：使用可变块长度和选择的软件或其他信息完整性验证
公开(公告)号：WO2008085922A2
公开(公告)日：2008-07-17
申请号：PCT/US2008/000169
申请日：2008-01-03
申请人： APPLE INC. , LEROUGE, Julien , BETOUIN, Pierre , FASOLI, Gianpaolo , FARRUGIA, Augustin, J.
发明人： LEROUGE, Julien , BETOUIN, Pierre , FASOLI, Gianpaolo , FARRUGIA, Augustin, J.
IPC分类号： G06F12/14
CPC分类号： G06F21/64
摘要： An integrity verification process and associated apparatus to detect tampering or other alterations to computer code (software) or other computer files, and especially useful to detect tampering with code by hackers who might try to plant their own malicious code in the software. To make the verification process more robust versus hackers, each e.g., object code file to be protected is first selected using some sort of rule, then partitioned into variable length blocks or portions, the lengths varying in an unpredictable manner. Each portion has its checksum or hash value computed. An accompanying verification file is created which includes a vector for each portion including the portion's start address in memory, length, and the computed checksum or hash value. When the code is later to be run (executed) the verification file is conventionally read and each portion is verified by computing its checksum or hash value using the same algorithm as before, and comparing that to the value in the associated verification file vector. Lack of a match in the two values indicates tampering, so execution of the code can be halted.
摘要翻译：完整性验证过程和相关联的设备，用于检测对计算机代码（软件）或其他计算机文件的篡改或其他更改，并且特别有用于检测骇客可能尝试在软件中种植自己的恶意代码的篡改代码。为了使验证过程比黑客更健壮，每个例如待保护的目标代码文件首先使用某种规则来选择，然后被分割成可变长度的块或部分，长度以不可预测的方式变化。每个部分都有其计算的校验和或散列值。创建伴随的验证文件，其中包括每个部分的向量，包括部分在内存中的起始地址，长度以及计算的校验和或哈希值。当代码稍后运行（执行）时，常规地读取验证文件，并且通过使用与之前相同的算法计算其校验和或散列值来验证每个部分，并将其与相关联的验证文件向量中的值进行比较。两个值中缺少匹配表示篡改，因此可以停止执行代码。

2. 发明申请

WO2012151075A1 SYSTEM AND METHOD FOR BLURRING INSTRUCTIONS AND DATA VIA RELOCATION 审中-公开
标题翻译：用于通过转移处理指令和数据的系统和方法
公开(公告)号：WO2012151075A1
公开(公告)日：2012-11-08
申请号：PCT/US2012/034716
申请日：2012-04-23
申请人： APPLE INC. , MCLACHLAN, Jon , ZAKS, Ganna , LEROUGE, Julien , BETOUIN, Pierre , FARRUGIA, Augustin, J. , MYLES, Gideon, M. , TESSIER, Cedric
发明人： MCLACHLAN, Jon , ZAKS, Ganna , LEROUGE, Julien , BETOUIN, Pierre , FARRUGIA, Augustin, J. , MYLES, Gideon, M. , TESSIER, Cedric
IPC分类号： G06F21/22
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，_文本，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。

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