Abstract | ||
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Smartphones store sensitive and confidential data, e.g., business related documents or emails. If a smartphone is stolen, such data are at risk of disclosure. To mitigate this risk, modern smartphones allow users to enable data encryption, which uses a locking password to protect the data encryption key. Unfortunately, users either do not lock their devices at all, due to usability issues, or use weak and easy to guess 4-digit PINs. This makes the current approach of protecting confidential data-at-rest ineffective against password guessing attackers. To address this problem we design, implement and evaluate the Sidekick system — a system that uses a wearable device to decouple data encryption and smartphone locking. Evaluation of the Sidekick system revealed that the proposal can run on an 8-bit System-on-Chip, uses only 4 Kb/20 Kb of RAM/ROM, allows data encryption key fetching in less than two seconds, while lasting for more than a year on a single coin-cell battery. |
Year | DOI | Venue |
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2016 | 10.1016/j.pmcj.2016.06.016 | Pervasive and Mobile Computing |
Keywords | Field | DocType |
Smartphone loss and theft,Data-at-rest encryption,Smartphone locking,Wearable devices,Encryption keys management | Client-side encryption,Password cracking,Disk encryption,Computer science,Computer security,Computer network,Disk encryption hardware,Encryption,Password,On-the-fly encryption,Key (cryptography) | Journal |
Volume | ISSN | Citations |
32 | 1574-1192 | 2 |
PageRank | References | Authors |
0.35 | 12 | 5 |
Name | Order | Citations | PageRank |
---|---|---|---|
Ildar Muslukhov | 1 | 415 | 18.51 |
San-Tsai Sun | 2 | 202 | 12.74 |
Primal Wijesekera | 3 | 52 | 5.71 |
Yazan Boshmaf | 4 | 491 | 22.39 |
Konstantin Beznosov | 5 | 1521 | 105.47 |