Python Expert for Web Security Implementation -- 2

I'm in need of a Python professional who can help me implement web security features using public key signatures for secure data exchanges.

Key Responsibilities:
- Implement public key signatures to secure data exchange
- Mock web app security using Python

Ideal Skills and Experience:
- Proven experience in Python programming
- Expertise in web security implementation
- Familiarity with public key signature systems
- Ability to mock web app security

I need someone who can ensure our data exchanges are secure, using Python to simulate the necessary web app security measures.