Crypto Storage Service

The crypto storage service takes care of securely storing all kind of information to the applications local storage.

// TODO extend description

Table of Contents

• Directory Structure
  • Version 0.1.0
  • Version 0.2.0

Directory structure

In the contact directory all information related to communication with contacts are stored. This includes the following details:

• chat partner public key // TODO add link to public key explanation (identity service)
• conversation key // TODO add link to conversation key explanation (messaging service & backend)
• properties file (including settings such as local name, whether read and delivery receipts are being performed, etc.)
• chat file: containing the actual conversation
• media files: directory containing all media files which have been shared in the conversation

Version 0.1.0

Contacts
    Alice
        alice-public-key.txt
        conversation-key.txt
        properties.txt
        chat.txt
        media-files
            file1
            file2
            file3
    Bob
        bob-public-key.txt
        conversation-key.txt
        properties.txt
        chat.txt
        media-files
    Charly
        charly-public-key.txt
        conversation-key.txt
        properties.txt
        chat.txt
        media-files

Version 0.2.0

// NOTE: maybe add padding on usernames to further eliminate relevant metadata

.trale
    45ee23 (own username hash)
        master.key
        chats
            45237 (chat partner username hash)
                chat.properties
                    conversation key
                    rsa public key
                    custom display name
                chat.log
                [profile image]
        media
            ff56a3
            67hd2e
        contacts (chat partner username listing)
        rsa private key
        rsa public key