Paper of conduct background study and literature review on security/forensics issues

Write a paper  in one of your interested operating systems including Windows, Linux/Unix, Mac OS, iOS, Android, Windows mobile phone, and/or relevant device security and forensics issues.  

 . Use the search engines to search for technical papers on the topic of your choice. Make sure that the papers were published within the last 5 years. List all the papers as references at the end of your documentation. 

 In your report, you should include this following section: a. Existing Algorithms -- discussing their pros and cons