nextcloud / nextcloud/server

Encrypt Filenames SSE

Open
#55,393 5 comments 3 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

0. Needs triage enhancement feature: encryption (server-side)
Dominant language
PHP
Stars
36.9k
Forks
5.2k
Avg merge
2d 3h
Merged PRs (30d)
713

Description

Currently, if you enable server-side encryption (SSE) and I suspect by extend end-to-end encryption (E2EE) names of files are not encrypted. I think this is a major oversight and should be fixed because filenames can give a lot of information about the content stored in a file. File names (and even folder names) can contain private and/or personal information, like names of persons, places bank accounts present, etc. Even highly sensitive data like gender or sexual orientation can be exposed via unencrypted filenames

This fact is also stated in the official manual, so this is obviously "intended behaviour" but severely limits the application of SSE impov.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the linked official server-side encryption documentation and compare its stated filename behavior with the issue’s SSE and E2EE expectations. Identify the encryption paths that govern file and folder names; done means the intended metadata-protection behavior is defined and verified for both filenames and folder names.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
cloud, security
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.