Title: Application of RC4 Cryptography Method to Support XML Security on Digital Chain of Custody Data Storage

Issue Number: Vol. 7, No. 3
Year of Publication: Sep - 2018
Page Numbers: 230-237
Authors: Krisna Widatama, Yudi Prayudi, Bambang Sugiantoro
Journal Name: International Journal of Cyber-Security and Digital Forensics (IJCSDF)
- Hong Kong
DOI:  http://dx.doi.org/10.17781/P002400


Chain of custody is a key process of disclosure of cyber crime cases. Chain of custody contains information about the identity of electronic evidence and the digital evidence which obtained from acquisition process result. The data of Chain of custody is stored in an XML structure. One such advantage of using XML that is effortless to understand by the nonprofessional. Other objections, XML does not require a particular DBMS (Database Management System) to open it. On the other hand, the XML has a drawback. The information can be accessed by anyone, as a result, it will make the integrity of digital evidence cannot be accepted in court. What is needed to combat this problem is definite action. The XML need to be encrypted it to secure the information inside XML structure. This study will focus on decrypting static and dynamic data in the chain of custody. The results of this encryption is the XML structure cannot be read or changed manually. This paper contains the use of RC4 (Rivest Cipher Version 4) cryptography method that can encrypt the XML structure. This paper is expected the use of RC4 encryption method can support the security of data in Chain of custody.