NPass is a backend for a password manager written in flask. It uses a MySql DB hosted locally for storing user secrets. The user secrets is encrypted using AES (a symmetric key encryption algorithm) and can be decrypted only if Master Password is known.
Language : Python
Framework : Flask
Encryption : AES -ECB mode
ORM: SQLAlchemy
Set up a MySql DB before following these installation steps.
- Clone the repository:
git clone https://github.com/Niyaz2498/NPass-backend.git - Create a virtual environment (recommended).
- Install dependencies:
pip install -r requirements.txt - Export the following values in terminal.
- mysqluser
- mysqlpass
- mysqlport
- dbname
flask run command runs the app. if you run the app in some machine connected in network and want to access it in your machine, use the flag --host=0.0.0.0
| Route | Method | Description |
|---|---|---|
| /users/create | POST | This is the method to create new users. |
| /secret/query | POST | This returns a stringified JSON of user Secrets |
| /secret/add | POST | This is used to add a new secret for specified user |
| /secret/update | POST | This method is to modify a secret specified by user |
| /secret/delete | POST | This method is to delete a stored secret |
The user table contains the list of all users using this application. we don't store master password anywhere . If we have to check whether the master password is right, we can decrypt the HashedMessage of the user and check if it returns Test Message .
A separate table is created for each user with the UserID as table name where the secrets of each user is stored. The secrets are encrypted with the master password and should be decrypted with master password before sending back to user.
The following images can provide a bit more clarity on DB
This is how the values looks when decrypted
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