MobiCeal: Towards Secure and Practical Plausibly Deniable Encryption on Mobile Devices
| Title | MobiCeal: Towards Secure and Practical Plausibly Deniable Encryption on Mobile Devices |
| Publication Type | Conference Paper |
| Year of Publication | 2018 |
| Authors | Chang, B., Zhang, F., Chen, B., Li, Y., Zhu, W., Tian, Y., Wang, Z., Ching, A. |
| Conference Name | 2018 48th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN) |
| Date Published | June 2018 |
| Publisher | IEEE |
| ISBN Number | 978-1-5386-5596-2 |
| Keywords | Android (operating system), Android 4.2.2, android encryption, block-based file systems, cryptography, decrypt data, dummy write, Encryption, fast switching, Human Behavior, human factors, LG Nexus 4 Android phone, Metrics, MobiCeal, mobile device, mobile security, Multi snapshot Adversary, password, PDE schemes, plausibly deniable encryption, practical plausibly deniable encryption system, pubcrawl, resilience, Resiliency, Scalability, side channel attack, side-channel attacks, smart phones, storage medium, strong coercive multisnapshot adversaries, Switches |
| Abstract | We introduce MobiCeal, the first practical Plausibly Deniable Encryption (PDE) system for mobile devices that can defend against strong coercive multi-snapshot adversaries, who may examine the storage medium of a user's mobile device at different points of time and force the user to decrypt data. MobiCeal relies on "dummy write" to obfuscate the differences between multiple snapshots of storage medium due to existence of hidden data. By incorporating PDE in block layer, MobiCeal supports a broad deployment of any block-based file systems on mobile devices. More importantly, MobiCeal is secure against side channel attacks which pose a serious threat to existing PDE schemes. A proof of concept implementation of MobiCeal is provided on an LG Nexus 4 Android phone using Android 4.2.2. It is shown that the performance of MobiCeal is significantly better than prior PDE systems against multi-snapshot adversaries. |
| URL | https://ieeexplore.ieee.org/document/8416506 |
| DOI | 10.1109/DSN.2018.00054 |
| Citation Key | changMobiCealSecurePractical2018 |
- Mobile Security
- Switches
- strong coercive multisnapshot adversaries
- storage medium
- smart phones
- side-channel attacks
- side channel attack
- Scalability
- Resiliency
- resilience
- pubcrawl
- practical plausibly deniable encryption system
- plausibly deniable encryption
- PDE schemes
- password
- Multi snapshot Adversary
- Android (operating system)
- mobile device
- MobiCeal
- Metrics
- LG Nexus 4 Android phone
- Human Factors
- Human behavior
- fast switching
- encryption
- dummy write
- decrypt data
- Cryptography
- block-based file systems
- android encryption
- Android 4.2.2