Privacy-Preserving Public Complaint Platform Using Certificateless Cryptography

In the digital era, ensuring privacy in public communication with authorities is critical. Traditional online complaint systems often require identity verification through certificate-based infrastructures, which are not only complex but also raise significant privacy concerns. This paper introduces a novel Privacy-Preserving Public Complaint Platform that leverages Certificateless Cryptography (CLC) to provide secure, anonymous, and efficient grievance redressal mechanisms. The proposed system removes the dependency on certificate authorities and eliminates the key escrow problem inherent in identity-based cryptography. It enables users to lodge complaints anonymously or under verified identity based on their preferences, while ensuring data confidentiality, integrity, and non-repudiation. Role-based access control (RBAC) ensures that sensitive information is only accessible to authorized personnel, and complaint data is stored in an encrypted format using symmetric and asymmetric cryptographic techniques. The system supports a robust audit trail, tamper-proof logging, and secure communications between all parties. Experimental evaluations demonstrate the system’s scalability and effectiveness, with minimal computational overhead compared to traditional PKI-based systems. This platform paves the way for transparent, privacy-centric public grievance systems in digital governance frameworks.