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With the looming popularity of the Internet of Things (IoT), this concern is becoming even more prevalent with respect to every aspect of modern life.
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Software security has become an increasingly important concern with the prevalent use of the Internet.
ARM EMULATOR CODE EXAMPLE PORTABLE
This paper describes our efforts of implementing PC-Encoding to harden portable binaries in ELF (Executable and Linkable Format). Encoding the control flow target addresses can minimize the semantic gap by preventing potential compromises of the control flows. It is simple and intuitive to implement and incur little overhead. The PC-Encoding directly encodes control flow target addresses that will load into the PC. This paper uses a program counter (PC) encoding technique (PC-Encoding) to harden program control flows under ARM processor architecture. Many recent software protection schemes for servers and desktops focus on protecting program control flows, but there are little protection tools available for protecting program control flows of mobile applications for ARM processor architecture. Attacks that compromise program control flows, which result in these mantic gaps, are a major attack type in modern software attacks.
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Software operations under these platforms are prone to semantic gap, which refers to potential difference between intended operations described in software and actual operations done by processor. For the smartphones, it is the processor for which software applications are running, whether the platform is with Apple’s iOS or Google’s Android. ARM ® is the prevalent processor architecture for embedded and mobile applications.