[SOLVED] Decrypting encrypted files (using the default Server-side encryption)

wwe · March 11, 2024, 8:11pm

if you have data and config files this should help:

syseleven/nextcloud-tools/blob/master/documentation/server-side-encryption.md

# Nextcloud Server-Side Encryption

This document - provided by [SysEleven](https://syseleven.de) - describes the server-side encryption scheme implemented by Nextcloud's default encryption module. This includes:

* the encryption and signature of files with a master key.
* the encryption and signature of files with a public sharing key.
* the encryption and signature of files with a recovery key.
* the encryption and signature of files with a user key.

These conventions apply throughout this document:

* Given file paths in this document are relative to the Nextcloud data directory that can be retrieved as `datadirectory` from the Nextcloud configuration file (`"config/config.php"`).
* Placeholders are denoted as `$variable`. The variable has to be replaced with the appropriate information.
* Static strings are denoted as `"some string"`.
* The concatenation of strings is denoted as `$variable."some string"`.

## Key Types

### Master Key

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