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Tresorit

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Tresorit
Written inC++[1]
Operating systemMicrosoft Windows,
macOS,
Android,
iOS,
Windows Phone,
BlackBerry OS,
Linux
Available inEnglish, French, German, Hungarian, Spanish
TypeCloud storage
LicenseProprietary software
Websitetresorit.com

Tresorit is an online cloud storage service based in Switzerland and Hungary that emphasizes enhanced security and data encryption for Businesses. The service starts at 12.50 EUR/Month/User/1000GB and there is a 14-day trial. The Business version offers up to 1Tb of storage space per user and extra security features such as DRM,[4] granular access levels and other functions which aim to create a safer collaborative environment.[5] Tresorit has been likened to a high-security alternative to Dropbox.[6][7]

Tresorit's service is accessible through client desktop software, web-based application and mobile apps.[8] Currently, the software is available for Windows, macOS, Android, Windows Phone 8, iOS, BlackBerry OS[9] and Linux.[10]

History

Tresorit was founded in 2011 by Hungarian programmers Istvan Lam, who remains CEO, Szilveszter Szebeni, who is currently CIO and Gyorgy Szilagyi, who is the CPO of the company.[2]

Tresorit officially launched its client-side encrypted cloud storage service after emerging from its stealth beta in April 2014.[11]

In August 2015, Wuala (owned by LaCie and Seagate), a pioneer of secure cloud storage, announced it was closing its service after 7 years, and recommended their users to choose Tresorit as their secure cloud alternative.[citation needed]

Early 2016, Forbes listed Tresorit's cofounder Istvan Lam among the European "30 under 30".[12]

Technology

Tresorit encrypts files using client-side encryption with AES-256 before uploading them. Files are also secured by HMAC message authentication codes applied on SHA-512 hashes.[13]

"Tresors" (German for vaults) are encrypted counterparts of uploaded directories. Tresors automatically sync with the cloud as files are added or removed from them, similar to Box.com and Dropbox's desktop software. The main difference between Tresorit and its competition is that Tresorit applies AES-256 client-side encryption to files while they’re still local and then uploads them to the cloud. Also, thanks to end-to-end encryption, users can share protected files and folders with others and work together on them, keeping the documents synced and secure in every step of the process. There are additional layers of security, but the key info is that the encryption key never leaves the user.[14] Using Zero-Knowledge encryption protocols,[15] Tresorit is not in possession of the users’ authentication data, so they can’t be leaked from their servers nor delivered to Governments upon request.

Hacking contest

In 2013 and 2014, Tresorit hosted a hacking contest offering $10,000 to anyone who hacked their data encryption methods to gain access to their servers.[16] After some months, the reward was increased to $25,000 and later to $50,000, challenging top hackers from institutions like Harvard, Stanford or MIT.[17][18][19] The contest ran for 468 days and no hackers were able to break Tresorit’s encryption.

Reception

Tresorit has received a number of nominations and awards. Up-Cloud Rewards named it one of the top 5 Cloud security solutions for 2012.[20][21]

Storage prices

Prices range from 12.50 EUR/month/user for 1000 GB (Small Business) to 25 EUR/month for 1000 GB (Individual). There is a basic 'Reader' plan which is free [22]


See also

References

  1. ^ "Careers - Tresorit | We encrypt - You share". Tresorit. Retrieved 18 June 2013.
  2. ^ a b "Management - Tresorit | We encrypt - You share". Tresorit. Retrieved 18 June 2013.
  3. ^ "Tresorit | CrunchBase Profile". Crunchbase.com. Retrieved 18 June 2013.
  4. ^ "Tresorit Brings DRM To Cloud Data". Forbes. Retrieved 22 February 2016.
  5. ^ Kucan, Berislav. "Tresorit for Business". Help Net Security. Retrieved 22 February 2016.
  6. ^ "Ultra-secure storage". CBS News. 25 April 2013. Retrieved 18 June 2013.
  7. ^ http://www.reviewtechnica.com/2014/07/tresorit-review.html
  8. ^ "Our biggest update yet in 2015 – work securely without installing Tresorit, using your browser". 29 July 2015. Retrieved 11 January 2016.
  9. ^ "Encrypted Cloud Service Tresorit Unveils New Desktop and Mobile Apps".
  10. ^ "Weekend Recap: Intel CEO on iPhone, Handbrake 0.9.9, Tresorit for Mac Teased | Mac|Life". Maclife.com. 20 May 2013. Retrieved 18 June 2013.
  11. ^ Tresorit opens its end-to-end encrypted file-sharing service to the public
  12. ^ http://www.forbes.com/pictures/mfg45jmjh/istvan-lam-28/
  13. ^ Get 50GB of Free, Encrypted Online Storage from Tresorit
  14. ^ Tresorit takes on PRISM-provoked worries with encrypted cloud storage
  15. ^ https://tresorit.com/blog/zero-knowledge-encryption/
  16. ^ "Secure cloud storage outfit Tresorit posts $10K hacker bounty — Tech News and Analysis". Gigaom.com. Retrieved 18 June 2013.
  17. ^ Hungarian ‘security freaks’: Hack our startup and we’ll give you $25K
  18. ^ Hackers, Here's a Way To Make An Easy $25k
  19. ^ Secure cloud firm Tresorit boosts hacker bounty to $25,000
  20. ^ UP Cloud Computing Conference-Start Cloud Awards rankings as of October 17, 2012
  21. ^ awards | UP 2012 - Cloud Computing Conference 2012
  22. ^ [1]
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