Light-weight wrapper on top of cryptography python package.

We describe a procedure allowing you to implemented a fully-customized RSA asymmetric end-to-end encryption.

Use cases:

• Encryption of email correspondence

• Python 3+
• cryptography
• gc

1. User A AND User B: python3 generate_rsa_keys.py

• This script will generate a unique 4048 private key as well as a corresponding public ket with SHA256 encryption stored in .pem files.

• After generating the keys, User A and User B exchange pubkey.pem to be able to encrypt messages send to have a secret conversation with.

2. python3 encrypt_message.py

• Specify public key of a person you would like to send message to.
• Type in secret message

A .txt file with an encrypted message is generated.

3. Send encrypted message (either txt or paste into email/other communication form)

4. python3 decrypt_message.py

• You will be prompted for the password you used to generate your public-private key pair. This allows an extra layer of protection.

• A decrypted message is displayed.

• More streamlined user experience (reduce number of steps)

Features:

• 4048 key size
• password-protected private key