Patent
Obfuscating computer program code
Johan Eker,Björn Johansson,Carl Von Platen +2 more
- 20 Nov 2007
231
TL;DR: In this paper, a computer-implemented method of tamper-protecting computer program code is presented, which includes: obtaining an input representation of the program code; identifying a conditional program statement for causing a data processing system to selectively execute one of at least a first and a second sets of program statements when said computer program is executed by a Data Processing System; replacing the identified conditional program statements with a set of transformed program statements to obtain obfuscated program code.
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Abstract: A computer-implemented method of tamper-protecting computer program code. The method comprises: obtaining an input representation of the computer program code; identifying a conditional program statement for causing a data processing system to selectively execute one of at least a first and a second sets of program statements when said computer program is executed by a data processing system; replacing said identified conditional program statement and the first and second sets of program statements with a set of transformed program statements to obtain obfuscated program code, wherein the set of transformed program statements is adapted to cause the data processing system to execute at least a part of each of the transformed program statements when said computer program is executed by the data processing system.
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Citations
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TL;DR: In this paper, the authors present a call path enforcement method that allows or prevents proper execution of a protected function call only if the run-time call order matches a predetermined order.
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TL;DR: In this article, a virtualization layer is configured to protect the guest agent process operating within the virtual machine that provides metadata to the virtualisation layer by restricting page permissions for memory pages associated with the guest agents when the agent process is inactive.
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TL;DR: In this article, a static analysis of a target program is used to predict execution paths of at least one target program of a plurality of programs that are run in parallel, based on the communication messages that are identified in the debug logs.
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Method, system and device for protection against reverse engineering and/or tampering with programs
Willem Charles Mallon
- 17 May 2013
TL;DR: In this article, a processor is configured so that it will execute machine instructions according to the translation data of the original program and the source code of the program. But without knowledge of the bit string B and the program P, it is difficult to modify the machine instructions B' so that a different processor will execute the other program P'.
4
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