Passwall - Free Password Manager 作者： Erhan Yakut

Passwall is an open source password manager.

All the logins and passwords you add to the Passwall Extension are securely stored by the Passwall Server, which is also an open source project.

Passwall allows you to securely store your logins and passwords in the following categories:
1. Logins
2. Emails
3. Credit Cards
4. Bank Accounts
5. Private Notes
6. Servers

Passwall has a 4 layered encryption architecture.
Layer 1: A secure hash (master hash) is generated from your master password.
Layer 2: All your logins and passwords are encrypted on the client side with master hash. This ensures that passwords can only be decrypted by you.
Layer 3: With end-to-end encryption feature, all data sent from the client to the server is also encrypted during the transportation.
Layer 4: Finally your passwords are also encrypted with server hash just before saving them to the database.

Passwall is an open source software. The source code for Passwall is hosted on GitHub and everyone is free to review, audit, and contribute to the Passwall codebase.