Efficient Zero-Trust Data Transmission for Consumer Electronic Using Holographic Counterparts in Internet of Things: Ciphertext-Policy Attribute-Based Signcryption With Equality Test

Secure communication in consumer electronic devices, such as health monitoring systems, is essential as they process sensitive medical data. This paper proposes a Ciphertext-Policy Attribute-Based Signcryption with Equality Test (CP-ABSC-ET) scheme to address these security challenges. The scheme controls who can access data and ensures both encryption and signature verification are done together, keeping the data secure. The integration of equality test enables secure ciphertext verification without decryption, ensuring both data integrity and confidentiality. Compared to existing schemes, the proposed approach reduces the computational overhead. Comprehensive security analysis and performance evaluations demonstrate the scheme’s suitability for dynamic and resource-constrained environments. The CP-ABSC-ET scheme ensures strong data protection, better access control, and efficient communication, making it ideal for consumer electronics like health monitoring devices.