2013, Vol.9, No.1

Journal of Software Assessment and Valuation 2023 KCI Impact Factor : 0.35

pISSN : 2092-8114 / eISSN : 2733-4384
https://journal.kci.go.kr/ksavs

Raw and subsidiary material use to product goods. In this paper, we introduce the Software Appraise for Cyber Expo System. The completion appraise is performed by investigating the contract documents and a field investigation.

Copyright infringement in Android applications is a growing problem because Android applications can be easily reverse engineered and pirated. In this paper, we propose three techniques for comparing similarity between Android applications in order to detect the theft of the applications. The proposed techniques statically analyze the Dalvik VM executable files in the Dalvik Executable (.dex) format, and measure similarity between the executable files (DEX files). The first technique decompiles DEX (VM bytecode) files into corresponding Java source codes and computes similarity between the decompiled source codes. The second technique extracts string information contained in DEX files and calculates similarity between applications based on the string information. The last technique extracts methods’ features defined DEX files and compares similarity between applications based on the features. We evaluate the performance of the proposed techniques in terms of credibility and resilience by carrying out some experiments.

The digital forensics is a procedure of criminal investigation for assure of legal ability by scientific analysis in electronic equipment. smart phone is the one of the best mobile IT devices. Evidence in digital form is the way of doing to create, reproduce, modify, remove, transport Thus, specific procedures and methods are required to achieve legal evidences. A hardware device has special processor and interface modules for it's own function under designers characteristics. An application program has it's own useful program utility and file structures. On forensics, it should be evaluated on the hardware and source code. This paper shows how to make forensics evidence on the hardware devices as it comes illegal property in ownership.