Forensic Analysis of Broken and Damaged Mobile Phone - A Crime Case Study

Forensic laboratories are frequently subjected to mobile devices that are assailed by shock or forced damage which might be the result of intentional efforts to destroy proof from the devices or accidental exposure. Chip-off technique is an effective method for data retrieval from such kind of exhibits. However, nowadays all mobiles phones are securely encrypted with full disk encryption (FDE) or file-based encryption (FBE) which makes chip-off forensics an improbable process to successfully retrieve data. In many of these cases, the encryption is on the hardware and hence, the device could be successfully decrypted by bringing it in its original condition. Thus, the original user data can be obtained for investigative purposes. This process can be enabled by replacement of electronic parts of the original device which contains user data and decryption keys i.e. PCB to the new host. This research paper covers a case study of a mobile phone obtained in broken and shattered condition whose diagnosis of PCB and subsequent actions led to data recovery.

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Enkripcija mobilnog telefona kao prepreka otkrivanju i dokazivanju krivičnih dela – osvrt na uporedna rešenja

Anali Pravnog fakulteta u Beogradu ◽

10.51204/anali_pfbu_21205a ◽

2021 ◽

Vol 69 (2) ◽

pp. 415-442

Author(s):

Milana Pisarić

Keyword(s):

Mobile Phone ◽

Mobile Phones ◽

Criminal Investigation ◽

Digital Environment ◽

Legal Basis ◽

Basic Principles ◽

Electronic Evidence ◽

Technical Ability ◽

Disk Encryption ◽

Full Disk

In detecting criminal offences, the police increasingly rely on electronic evidence. Due to ubiquitous digitization, data in electronic form with probative potential is found in an increasing number of sources. When the competent authorities need to collect potential electronic evidence from mobile phones, they face several normative and practical challenges. One of the important aggravating factors is the full-disk encryption of the device. Although functions of encryption cannot and must not be neglected in the modern digital environment, it has an obstructive role in criminal investigation. The competent authorities often have the appropriate authority to access the contents of a mobile phone, but they lack the technical ability to gain such access and collect data. After explaining the basic principles of encryption of mobile phones, the author analyzes the possible approaches for gaining access to a device protected by encryption, and indicates the possible legal basis for their application.

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Analisis Forensik Digital Memori Volatile untuk Mendapatkan Kunci Enkripsi Aplikasi Dm-Crypt

Jurnal Sistem Komputer dan Informatika (JSON) ◽

10.30865/json.v2i3.2998 ◽

2021 ◽

Vol 2 (3) ◽

pp. 283

Author(s):

Vipkas Al Hadid Firdaus ◽

Dodit Suprianto ◽

Rini Agustina

Keyword(s):

Operating System ◽

Forensic Analysis ◽

The Other ◽

Digital Evidence ◽

Memory Dump ◽

Live Image ◽

Disk Encryption ◽

Investigation Process ◽

Success Percentage ◽

Full Disk

Disk encryption technology is something very useful in securing data. On the other hand, disk encryption can be used by criminals to hide the digital evidence. The information in the disk will be very useful for the investigation, but if the disk on the computer evidence encrypted then it will hamper the investigation process. The conditions will certainly be a challenge for investigator cybercrime to be able to find the disk encryption key, especially if the perpetrator did not cooperate in the investigation process. The analysis of the image memory to get the encryption key will be helpful in the investigation. In the overall memory activity on the computer evidence will be recorded, using a live image memory dump on the computer evidence, the decryption keys can be recovered. This paper will discuss about forensic analysis to getting the disk encryption key on the dm-crypt is used to encrypt the disk on Linux operating system and prove that through forensic image memory on a live memory dump, key dm-crypt disk encryption can be found with a success percentage of 80%. On this paper the research will be focused on the Linux operating system with dm-crypt function to full disk encryption.

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Cryptography for Personal Devices

10.1093/oso/9780198788003.003.0013 ◽

2017 ◽

Author(s):

Keith M. Martin

Keyword(s):

Operating System ◽

System P ◽

Disk Encryption ◽

Personal Devices ◽

Full Disk

In this chapter, we consider some of the cryptography which can be used to protect data stored on personal devices. We begin by looking at various forms of cryptographic file protection, including full disk encryption. We then consider the cryptography which can be used to support two applications widely used on personal devices, namely, email and asynchronous messaging. To illustrate the latter, we discuss the cryptography deployed by the application WhatsApp. Finally, we obtain a slightly different perspective by providing an overview of the cryptography supported by one particular device platform, Apple’s iOS operating system.

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Viability of Mobile phone cameras in professional broadcasting: A case study of camera Efficiency of Apple iPhone 11

2021 International Conference on Computational Intelligence and Knowledge Economy (ICCIKE) ◽

10.1109/iccike51210.2021.9410774 ◽

2021 ◽

Author(s):

Sambhram Pattanayak ◽

Fazal Malik ◽

Manish Verma

Keyword(s):

Mobile Phone

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Analytical study to find the impacts of using a mobile phone on driver's inattentions while driving – A case study of Lahore

Accident Analysis & Prevention ◽

10.1016/j.aap.2021.106132 ◽

2021 ◽

Vol 157 ◽

pp. 106132

Author(s):

Arslan Jamil ◽

Saadia Tabassum ◽

Muhammad Waqas Younis ◽

Ammad Hassan Khan ◽

Zia ur Rehman ◽

...

Keyword(s):

Mobile Phone ◽

Analytical Study

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Activity-Based Human Mobility Patterns Inferred from Mobile Phone Data: A Case Study of Singapore

IEEE Transactions on Big Data ◽

10.1109/tbdata.2016.2631141 ◽

2017 ◽

Vol 3 (2) ◽

pp. 208-219 ◽

Cited By ~ 121

Author(s):

Shan Jiang ◽

Joseph Ferreira ◽

Marta C. Gonzalez

Keyword(s):

Mobile Phone ◽

Human Mobility ◽

Mobile Phone Data ◽

Mobility Patterns

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Assessing data retrieval capabilities: a case study

The Computer Journal ◽

10.1093/comjnl/22.1.17 ◽

1979 ◽

Vol 22 (1) ◽

pp. 17-21

Author(s):

C. B. Spengler

Keyword(s):

Data Retrieval

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Reconsidering the Resilience of Pastoralism from the Perspective of Reliability: The Case of Conflicts between the Samburu and the Pokot of Kenya, 2004-2009

Nomadic Peoples ◽

10.3197/np.2021.250205 ◽

2021 ◽

Vol 25 (2) ◽

pp. 253-277

Author(s):

Shinya Konaka

Keyword(s):

Mobile Phone ◽

Real Time ◽

Time Management ◽

Ethnographic Case Study ◽

High Input ◽

Theoretical Frameworks ◽

Mobile Phone Network ◽

Process Variance ◽

Output Variance

This article explores an overlooked aspect of the 'resilience of pastoralism' in crises through an ethnographic case study of a series of conflicts between the Samburu and the Pokot in Kenya that erupted in 2004. Emery Roe's concepts of reliability professionals and real-time management of pastoralists are utilised as theoretical frameworks for this study. It was observed that the 'logic of high input variance matched by high process variance to ensure low and stable output variance' occurred through the formation of clustered settlements and an inter-ethnic mobile phone network. This case illustrates how pastoralists endured the conflict as reliability professionals.

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