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Cloud Storage Security Survey

This survey provides an overview of cloud storage services including Google Drive, Microsoft Cloud Drive, Dropbox, and more secure alternatives like Spideroak and Wuala. Learn about their security features and limitations, from encryption methods to storage capacities. Discover which services prioritize ease of use and ubiquity, while others focus on enhanced security measures. Make an informed decision on the best cloud storage solution for your needs.

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Cloud Storage Security Survey

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  1. Cloud Storage Security Survey Ryan Kiefer

  2. Overview • Google Drive • Microsoft Cloud Drive • Dropbox • Paid-for alternatives

  3. Google Drive • Free - 15GB • Email + uploaded files • Extra storage available for subscription • Theoretically limited only by your budget • drive.google.com • 128-bit RC4_128 with TLS 1.2 • SHA1 message authentication • ECDHE_ECDSA key exchange

  4. Microsoft Sky Drive • Free - 7GB • Uploaded files • Up to 207GB storage available • skydrive.live.com • 128-bit AES_128_CBC with TLS 1.0 • SHA1 message authentication • RSA key exchange

  5. Dropbox • Free - 2GB • Uploaded files • Up to 100GB personal, 1000GB business storage available • www.dropbox.com • 256-bit AES_256_CBC with TLS 1.2 • SHA1 message authentication • ECDHE_RSA key exchange

  6. More Secure Alternatives • Spideroak • Encrypts locally before upload, 2048-bit RSA authentication + 256-bit AES encryption • Wuala • Encrypts locally before upload, 2048-bit RSA authentication, 256-bit AES encryption, 256-bit SHA integrity checks • Several others with similar security

  7. Conclusions • Google Drive, Dropbox, Microsoft SkyDrive score on ubiquity, ease of use • Alternative services score on more complete security

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