rdedup

I've never tried it myself but the README mentions several other tools. https://github.com/dpc/rdedup/

And yet again: A list of alternatives. attic (python) - https://github.com/jborg/attic borg (c) - https://github.com/borgbackup/borg bupstash (rust) - https://github.com/andrewchambers/bupstash duplicacy (go) - https://github.com/gilbertchen/duplicacy duplicati (c#) - https://github.com/duplicati/duplicati duplicity (python) - https://github.com/henrysher/duplicity kopia (go) - https://github.com/kopia/kopia nfreezer (python) - https://github.com/josephernest/nfreezer rdedup (rust) - https://github.com/dpc/rdedup restic (go) - https://github.com/restic/restic rclone (go) - https://github.com/rclone/rclone rsnapshot (perl) - https://github.com/rsnapshot/rsnapshot snebu (c) - https://github.com/derekp7/snebu tarsnap (c) - https://github.com/Tarsnap/tarsnap I think there are many more out there (https://github.com/restic/others) - I personal

And yet again: A list of alternatives. attic (python) - https://github.com/jborg/attic borg (c) - https://github.com/borgbackup/borg bupstash (rust) - https://github.com/andrewchambers/bupstash duplicacy (go) - https://github.com/gilbertchen/duplicacy duplicati (c#) - https://github.com/duplicati/duplicati duplicity (python) - https://github.com/henrysher/duplicity kopia (go) - https://github.com/kopia/kopia nfreezer (python) - https://github.com/josephernest/nfreezer rdedup (rust) - https://github.com/dpc/rdedup restic (go) - https://github.com/restic/restic rclone (go) - https://github.com/rclone/rclone rsnapshot (perl) - https://github.com/rsnapshot/rsnapshot snebu (c) - https://github.com/derekp7/snebu tarsnap (c) - https://github.com/Tarsnap/tarsnap I think there are many more out there (https://github.com/restic/others) - I personal

Lets make a list : attic (python) - https://github.com/jborg/attic borg (c) - https://github.com/borgbackup/borg bupstash (rust) - https://github.com/andrewchambers/bupstash duplicacy (go) - https://github.com/gilbertchen/duplicacy duplicati (c#) - https://github.com/duplicati/duplicati duplicity (python) - https://github.com/henrysher/duplicity kopia (go) - https://github.com/kopia/kopia nfreezer (python) - https://github.com/josephernest/nfreezer rdedup (rust) - https://github.com/dpc/rdedup restic (go) - https://github.com/restic/restic rclone (go) - https://github.com/rclone/rclone rsnapshot (perl) - https://github.com/rsnapshot/rsnapshot snebu (c) - https://github.com/derekp7/snebu tarsnap (c) - https://github.com/Tarsnap/tarsnap I think there are many more out there (https://github.com/restic/others) - I personally use restic whi

rdedup (mentioned in a few other comments) uses asymmetric cryptography[1]. [1]: https://github.com/dpc/rdedup/

Don't forget to mention rdedup (https://github.com/dpc/rdedup), which is an impressive piece of software. The advantage it has over all other solutions I came across is, that it can do UNATTENDED backups without providing the encryption key... on the other hand it does not have a file scanner, which is a really pity.

There's so many backup systems out there these days, but none that are quite perfect. The closest I've found is `rdedup`[1], which may no longer be maintained. What I'd like in a backup solution is: - compressed - deduplicated - encrypted using asymmetric encryption, so that the encrypting machine doesn't need to know a password - durable (using par2 or directly supporting repository repair from an independent backup)/signed - composed of standard open source tools so that if the backup software goes away, everything can still be retrieved - supports differing upstream data hosting providers - open source There's lots of things that fill most of those requirements, but none that tick all the boxes. - rdiff-backup does all of the above except deduplication; it's full + incremental which requires a management strategy - restic doesn't com

While everyone is of course free to start his/hers project there is a whole bunch of projects which basically does the same thing like: deduplication, client can append backups only, server side client backup rotation / pruning, etc. For example restic ( https://restic.net/ ) does everything the author describes in the ideal feature set ( https://packnback.github.io/blog/work_begins/ ) except for asymmetric encrpytion. Though there is an issue open for that and iirc they are working on it. Contributing to that project would probably be easier? Another existing very interesting project to contribute to is rdedup ( https://github.com/dpc/rdedup ) which is written in Rust. There is a whole list over here of existing backup solutions: https://github.com/restic/others Judging from the comparisons made in the introduction blog post by the autho

I know it. :) I use i to off-site my asymmetrically encrypted backup (created with https://github.com/dpc/rdedup ) to Backblaze B2 .

There are few more similar project such as Restic (Go) and rdedup (Rust). https://github.com/restic/others https://github.com/dpc/rdedup