https://github.com/cenotes/cenotes

C(ryptographical) E(xpendable) Notes backend
https://github.com/cenotes/cenotes

backend cryptography-tools decryption encryption encryption-tool nacl python python3

Last synced: 2 months ago
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C(ryptographical) E(xpendable) Notes backend

• Host: GitHub
• URL: https://github.com/cenotes/cenotes
• Owner: cenotes
• License: gpl-3.0
• Created: 2017-10-12T07:02:12.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2023-02-16T06:53:56.000Z (over 3 years ago)
• Last Synced: 2026-01-04T21:16:28.929Z (6 months ago)
• Topics: backend, cryptography-tools, decryption, encryption, encryption-tool, nacl, python, python3
• Language: Python
• Homepage: https://cenotes.readthedocs.io
• Size: 354 KB
• Stars: 3
• Watchers: 1
• Forks: 1
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • Changelog: HISTORY.rst
  • Contributing: CONTRIBUTING.rst
  • License: LICENSE

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README

          
# CENotes

[![image](https://travis-ci.org/cenotes/cenotes.svg?branch=master)](https://travis-ci.org/cenotes/cenotes)

[![Documentation

Status](https://readthedocs.org/projects/cenotes/badge/?version=latest)](https://cenotes.readthedocs.io/en/latest/?badge=latest)

**C(ryptographical) E(xpendable) Notes**

  - Free software: GNU General Public License v3

  - [Demo](https://cenot.es)

  - Source code:

        

    - [Backend](https://github.com/cenotes/cenotes)

    - [Frontend](https://github.com/cenotes/cenotes-reaction)

    - [CLI](https://github.com/cenotes/cenotes-cli)

    - [Libraries](https://github.com/cenotes/cenotes-lib)

  - [Documentation](https://cenotes.readthedocs.io)

  - [Design](https://cenotes.readthedocs.io/en/latest/design.html)

  - [Release history](https://cenotes.readthedocs.io/en/latest/history.html)

## What is this?

A **backend** project to support encryption/decryption of expendable

notes

An example using this backend can be found at 

## What this isn't

UI/Frontend. This is a **backend** project. Frontend solutions will be

different projects. The reason for this is to allow flexibility in

frontend choice and to avoid huge bundle projects.

- A **frontend** project that communicates with the **backend** can be

found [here](https://github.com/cenotes/cenotes-reaction)

- A **cli** project to test the encrypt/decrypt actions offline can be found 

[here](https://github.com/cenotes/cenotes-cli). Backend project uses this package 

for every crypto action

## Features

  - Symmetric encryption of notes using the

    [pynacl](https://pynacl.readthedocs.io/en/latest/) project

  - On the fly encryption/decryption

      - Notes can be encrypted/decrypted on the fly without storing

        anything on the server

  - Expiration date notes

    

      - After that date, the notes are deleted and cannot be

        retrieved (default is never)

  - Notes that are deleted after N visits

      - After N retrievals of a note, the note is deleted (default

        is 1)

  - Duress key for immediate note deletion

      - Using the duress key instead of the real decryption key

        will delete the note and respond as if the note didn't exist

        (to avoid indicating the use of the duress key)

  - Persistent visit notes

      - Notes can be marked as "persistent visit" so that that they

        are not deleted based on visit count

## How does this work?

See [design](https://cenotes.readthedocs.io/en/latest/design.html)

## How to run

See [how to run](https://cenotes.readthedocs.io/en/latest/run.html)

## How to deploy

See [deployment](https://cenotes.readthedocs.io/en/latest/deployment.html)

## Features to be added sometime

  - Modification of a note's settings

    - Zero visit count

    - Change max visits option

    - Change expiration date

  - Public key encryption and user database

## Q\&A

See [Questions and answers](https://cenotes.readthedocs.io/en/latest/qa.html)