License: MIT © 2026 Erick Adrián Zamora Tehozol / RheumaAI / Frutero Club

MedCrypt — End-to-End Encryption for Medical Messaging

Overview

Encrypts patient data (labs, images, clinical notes) with AES-256-GCM before sending through Telegram/WhatsApp. HIPAA/LFPDPPP/GDPR compliant.

Usage

pip install cryptography
python medcrypt.py

Protocol

• Key exchange: QR code at first visit → PBKDF2 shared secret
• Format: [MEDCRYPT:v1:patient_id:nonce_b64:ciphertext_b64:tag_b64]
• Key rotation: monthly, 7-day backward compatibility
• Emergency: 2-of-3 multisig break-glass

Threat Model

Compromised server, stolen device, unauthorized group member, legal subpoena → all mitigated by client-side encryption + crypto-shredding.