This repository contains the specification for the end-to-end encryption used by the Nextcloud sync and mobile clients.

The current version can be found in RFC.md.

• v2.1

  • Added support for end-to-end encrypted public shares

• v2.0

  • Added file drop support
  • Metadata format changed
  • Various clarifications regarding implementation
  • Added information about security goals and accepted feature loss

• Version 1

  Note: Metadata with a version "1.7" was only used as an internal prototype of version 2.0 for file drop support.