T

dillard 1839997972 Phase 0: repository format with packs, dedup and incremental runs (spike B)

Content-addressed repository on an IBackend (local implementation):
4 MiB blobs, deflate when it helps, each blob encrypted with its id as
associated data, ~32 MiB packs with an encrypted header, one index file
per pack, snapshots as encrypted JSON lines written last.

Spike B: 390 MiB tree, peak 54 MiB; unchanged run reads nothing; a 1 MiB
change in a 300 MiB file uploads one blob; full and partial restore are
bit-identical; tampering is detected.

2026-10-01 18:18:38 +02:00

appinfo

Phase 0: skeleton, streaming encryption (spike A)

2026-10-01 18:15:24 +02:00

lib

Phase 0: repository format with packs, dedup and incremental runs (spike B)

2026-10-01 18:18:38 +02:00

spikes

Phase 0: repository format with packs, dedup and incremental runs (spike B)

2026-10-01 18:18:38 +02:00

.gitignore

Phase 0: skeleton, streaming encryption (spike A)

2026-10-01 18:15:24 +02:00

LICENSE

Phase 0: skeleton, streaming encryption (spike A)

2026-10-01 18:15:24 +02:00

PLAN.md

Phase 0: skeleton, streaming encryption (spike A)

2026-10-01 18:15:24 +02:00

README.md

Phase 0: skeleton, streaming encryption (spike A)

2026-10-01 18:15:24 +02:00

README.md

NG Backup

Encrypted, incremental backups of Nextcloud with restore from the web interface. Works without shell access: no external programs, no extra PHP extensions beyond sodium.

Status: phase 0 (prototype). Not usable yet. See PLAN.md for the design.

License: AGPL-3.0-or-later.

Releases 17

1.1.0 Latest

2026-11-09 17:44:26 +01:00

Languages

PHP 84.9%

Shell 9.7%

Vue 5%

JavaScript 0.4%