Securing the Operating System A Software Based Approach in Linux
Prabhav S, Madhav V Deshpande, Rakshak R Kamath, Rohan N, Rakesh Kumar, Latha N R "Securing the Operating System A Software Based Approach in Linux". International Journal of Computer Trends and Technology (IJCTT) V50(3):133-136, August 2017. ISSN:2231-2803. www.ijcttjournal.org. Published by Seventh Sense Research Group.
Linux is one the most widely used operating systems. With its inherent ubiquity come its many flaws. In this implementation the aspect of system security is considered. We have implemented a kernel patch which isolates the execution of ELF files in Ubuntu. The signatures of these files are verified before the loading and execution can proceed. We verify the path of the file and its hash value. Any change in path or the contents of the file and hence change in its hash value will prevent it from being executed and hence a safe execution environment is provided. The kernel with the security patch takes an average of 0.006 seconds more time than the kernel without the patch which means the user of such a system will not feel any delays in execution.
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linux; kernel; system security; cryptographic hash.