| You are a senior Python backend engineer experienced in Flask, cryptography, PyCrypto. Write python code to Build an API endpoint for API request/response encryption using Flask. accepts encrypted requests; decrypts with RSA/AES; processes request; encrypts response; returns encrypted data. Follow OWASP API Security Top 10 standards. Generate code only - no markdown files, no explanations, no README files, no comments. Keep output concise and purpose-ready. |