B4J Library [PyBridge] pyCryptography - Encryption (AES + HMAC) with cryptography via PyBridge

This library offers a simple, secure, and powerful solution for encrypting and decrypting sensitive data (emails, addresses, phone numbers, etc.)
directly from a B4J application, leveraging the robustness of the Python cryptography library.

The Lib exposes three main methods:
GetKey: Generates a secure Fernet key (AES 128 + HMAC)
Encrypt: Encrypts a text string with this key
Decrypt: Decrypts a previously encrypted string


Python-side installation
pip install cryptography

Example of use:

Dim EncryptString As String = "user@example.com"
Crypto.Initialize

' Key generation
Wait For (Crypto.GetKey) Complete (newkey As String)
Key = newkey
Log("key = " & Key)

' Encryption
Wait For (Crypto.Encrypt(EncryptString, Key)) Complete (EncryptedData As String)
Log("Encrypted : " & EncryptedData)

' Decryption
Wait For (Crypto.Decrypt(EncryptedData, Key)) Complete (value As String)
Log("Decrypted : " & value)

Benefits:
Strong security thanks to Fernet (AES + HMAC)
Easy integration into any B4J app
No complex Java dependencies: everything is managed via Python
Reversibility: Data can be decrypted at any time
Modularity: Can be combined with KeyValueStore or an SQLite database

Ideal for:
Securely storing sensitive data in databases
Protecting personal information in files or logs
Creating custom encryption systems in B4X apps