Presentation infonuagique/ cloud computing presentation

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Francisco de Melo Jr

Presentation for Cloud Computing Class 2016 to prevent smartphone attacks.

Technology

PROTECTING DATA ON SMARTPHONES AND
TABLETS FROM MEMORY ATTACKS
PATRICK COLP, JIAWEN ZHANG, JAMES GLEESON, SAHIL SUNEJA, EYAL DE LARA,
HIMANSHURAJ, STEFAN SAROIU, AND ALEC WOLMAN
UNIVERSITY OF BRITISH COLUMBIA, ‡UNIVERSITY OF TORONTO, AND ∗MICROSOFT
RESEARCH
Presentation by:
Mana Eskandari
Francisco de Melo jr

TIPS IMPROVE SECURITY ON YOUR
SMARTPHONE
• Use a PIN
• Turn off Wi-Fi and Bluetooth® when not in use
• Download apps just from trusted sources

OUTLINE
• Smartphones components
• Describing the motivation: attacks
• How to prevent them
• Sentry
• Development of this tool
• Evalutation of Performance
• Comparison with similar tools
• Other relevant work
• Critics

SMARTPHONE ARCHITECTURE
• Processor
• Memory
• SoC

DESCRIBING THE ATTACKS
• Cold boot attacks
• DMA attack
• Bus monitoring

HOW CAN WE PREVENT THEM?
• Cold boot attacks
• Other attacks
• JTAG attacks
• Software attacks

SENTRY
Concept
Main caractheristic
AES_encryption x AES_decryption
Implementation in Nvidia and Nexus 4

DEVELOPMENT
• Development of security inside the memory of SoC

RESULT
• 2 % battery consumption for 150 locks/unlocks

SIMILAR TOOLS
• ARM TrustZone
• SGX – Intel Software Guard Extentions

OTHER RELEVANT ARTICLES
• Paper describing Cold boot attacks
• Paper about

CRITICS ABOUT THE PAPER
• Restricted threats
• Third part security analysis
• Software attacks

CONTACT
• Contact from the authors of the paper:
• Contact of the presentation:
• Mana
• Isnaldo Francisco

REFERENCES
• Patrick Colp, Jiawen Zhang, James Gleeson, Sahil Suneja, Eyal de Lara, HimanshuRaj,
Stefan Saroiu, and Alec Wolman
• http://www.verizonwireless.com/mobile-living/network-and-plans/security-app-tips-
to-keep-your-smartphone-secure/

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