Simple Diagram of Public Key Techniques: Encryption, Digital Signatures, and Authentication

I am seeking a freelancer who can create a clear and concise diagram depicting public key techniques such as encryption, digital signatures, and authentication. The diagram should be at an intermediate level of detail and presented in a flowchart style.

Ideal Skills and Experience:
- Experience in creating technical diagrams
- Knowledge of public key techniques and their applications
- Proficiency in using graphic design software to create flowcharts
- Knowledge of how Public Key Techniques.

Please do not bid if you don't have IT or understanding of topic