Tarsnap
 | |
| Original author(s) | Colin Percival |
|---|---|
| Developer(s) | Colin Percival |
| Initial release | 25 April 2008[1] |
| Stable release | 1.0.40[2]
/ 10 February 2022 |
| Repository | |
| Written in | C |
| Operating system | Unix-like |
| Platform | Cross-platform[3] |
| Size | 615.7 kB |
| Type | Online backup service |
| License | Proprietary |
| Website | www |
| As of | January 2016 |
Tarsnap is a secure online backup service for UNIX-like operating systems, including BSD, Linux, and OS X. It was created in 2008 by Colin Percival. Tarsnap encrypts data, and then stores it on Amazon S3.
Service
[edit]The service is designed for efficiency, only uploading and storing data that has directly changed since the last backup.[4] Its security keys are known only to the user.[5]
It was developed and debugged, with input solicited from bug bounty hunters, to try to find vulnerabilities.[6] A serious nonce-reuse vulnerability was found by this process and fixed in 2011.[7]
The document of the presentation "From bsdtar to tarsnap"[8] by Percival from EuroBSD-Con 2013 contains "all kinds of detail on exactly how the algorithms work, how deduplication is managed ... the innards of how Tarsnap works"[9]
See also
[edit]References
[edit]- ^ "Old Tarsnap releases". Tarsnap. 20 August 2015. Retrieved 4 January 2016.
- ^ "Release 1.0.40 · Tarsnap/tarsnap". GitHub. Archived from the original on 13 Feb 2022. Retrieved 13 Feb 2022.
- ^ Percival, Colin. "Tarsnap Download Page". Tarsnap. Retrieved 23 November 2017.
- ^ Fabbro, Andrew (August 2012). "Tarsnap: Online Backups for the Truly Paranoid". Linux Journal: 104–113. Retrieved August 21, 2012.
- ^ Dragani, Rachelle (May 17, 2012). "Dropbox Security System Doesn't Lock Down Files, Says FTC Complaint". E-Commerce Times/Technewsworld.com. Retrieved August 21, 2012.
- ^ Pauli, Darren (May 18, 2012). "AusCERT2012: FreeBSD talks amateur bug hunting". SC Magazine. Australia. Retrieved August 21, 2012.
- ^ Edge, Jake (January 19, 2011). "Tarsnap advisory provides a few lessons". LWN.net. Retrieved August 21, 2012.
- ^ Percival, Colin. "From bsdtar to tarsnap - Building an online backup service" (PDF). www.tarsnap.com. Tarsnap Backup Inc. Retrieved 6 November 2015.
- ^ Lucas, Michael W (2015). Tarsnap Mastery - Online Backup for the Truly Paranoid (1st ed.). Grosse Pointe Woods, Michigan: Tilted Windmill Pressd. p. 32. ISBN 978-0692400203.