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Working with Wickr

Introduction

This project is based on research we are conducting on Wickr, an integrated text messaging application supported by IOS devices. Wickr claims to provide its users with:

  • The power to send the message to specific people with a destruction time of the message

  • A high amount of encryption (AES256, ECDH521, RSA40961) to provide security

  • A passcode that is needed to enter the messaging application

  • Increased privacy through unobtainable user data and personal information

  • FIPS 140-2, HIPAA and other Top Secret Communication methods

 This project will focus on authenticating the claims above and finding the data generated by Wickr.

Devices in Use

  • Cellebrite UFED Physical Analyzer 3.7.2.0

  • iPhone 3Gs

  • Access Date Forensic Toolkit 4.1

  • Access Data Password Recovery Toolkit

Research and Development

09.13.2013

The device in use is an iPhone 3Gs with the 6.1.3 IOS.

 

The iPhone 3Gs will be imaged first without Jailbreak or Wickr and then with both programs.

 

The iPhone will also be periodically backed up using iTunes.

 

Imaging

 

The image below shows the iPhone 3GS Physical imaging without Jailbreak or Wickr using the Cellebrited UFED Physical Analyzer 3.7.2.0.

 

During the Extractions phase, Physical Extraction is selected.

 

The User and System data partitions are selected to acquire all the data from the device.

 

The same specifications were selected when imaging the iPhone 3GS after Jailbreak and Wickr were installed.

 

Analysis

 

Both physical images of the iPhone 3GS are being compared currently. The team is looking for differences in the data found on the devices, which could help determine where the data is stored and how the data changes over time.

 

09.19.2013

 

1 These encryption methods are widely used in agencies providing security and are considered the top ciphers used.

Megh Shah