期刊名称：International Journal of Computer Trends and Technology
电子版ISSN：2231-2803
出版年度：2017
卷号：50
期号：3
页码：133-136
DOI：10.14445/22312803/IJCTT-V50P123
出版社：Seventh Sense Research Group
摘要：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.
关键词：linux; kernel; system security; cryptographic hash
