Outline:
I. Introduction
A. Recap the basics of ZKPs and their relevance in Celo smart contracts
B. Briefly review the content covered in Part 1
II. Prerequisites
A. Understanding of ZKPs and their implementation in Celo (covered in Part 1)
B. Proficiency in Solidity programming language
III. Designing the ZKP-Backed Authentication System
A. Define the authentication requirements and constraints
B. Plan the ZKP-based solution and its components
IV. Creating the Celo Smart Contract
A. Define the contract structure and variables
B. Implement the ZKP-backed authentication logic
C. Incorporate the necessary ZKP libraries and functions
V. Generating the Proving Key and Verifying Key
A. Utilize the existing proving and verifying keys (generated in Part 1)
B. Modify the keys as per the requirements of the authentication system
VI. Compiling and Deploying the Smart Contract
A. Compile the updated Celo smart contract using the Celo CLI
B. Configure the deployment parameters (e.g., gas price, account)
C. Deploy the smart contract to a Celo development network
VII. Testing the ZKP-Backed Authentication System
A. Design comprehensive test cases for the authentication system
B. Execute the test cases using a Celo development network
C. Validate the results and ensure the ZKP-backed authentication works as expected
VIII. Integration with Frontend Applications
A. Develop a simple frontend interface to interact with the Celo smart contract
B. Connect the frontend to a Celo development network using appropriate libraries
IX. Conclusion
A. Summarize the key concepts covered in Part 2
B. Encourage learners to explore further ZKP use cases and advanced topics
X. References
A. Provide relevant resources, documentation, and tutorials