cryptomator / hub

Cryptomator Hub helps you manage vaults in large teams
GNU Affero General Public License v3.0
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UVF support #274

Open overheadhunter opened 1 month ago

overheadhunter commented 1 month ago

This PR adds fundamental support for UVF-based vaults. During vault creation either format is selected. There is no migration of format 8 based vaults planned. Vault access tokens either contain a format 8 Masterkey OR a UVF member key (which is an A256KW key for the vault.uvf file).

Notable changes:

  1. split up crypto implementation into uvf.ts and vaultv8.ts, leaving common crypto in crypto.ts
  2. make jwe.ts capable of handling compact as well as json serialization with support for ECDH-ES (legacy, decrypt only), ECDH-ES+A256KW, PBES2+A256KW and A256KW, allowing encryption for multiple recipients
  3. add new vault fields to database and DTOs to allow storing a vault.uvf file as well as the public part of a recovery key pair
  4. instead of serializing the masterkey, the recovery key consists of a serialized private key

TODO

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