UTXO model blockchain-based trusted identity authentication model for crowdsourcing logistics
To solve the problems of privacy leakage and data tampering in the storage and management of user identity data on existing centralized crowdsourcing logistics platforms,the trusted identity authentication model based on the unspent transaction output(UTXO)model blockchain was proposed.The implementation of identity registration,identity verification,identity revocation and identity authentication was realized in the model by blockchain technology.To solve the risks associated with storing user privacy data on the blockchain,the hybrid encryption and decryption scheme was adopted to ensure the secure storage and sharing of personal information on the chain.For the issue of platform user identity authentication,the trusted identity credential was used to log into the crowdsourcing logistics platform by the zero-knowledge proof method.The security of identity information and authentication was analyzed,and the security performance of the proposed method was compared with those of the LIU and LI methods.The experiments were completed in Python 3.9 environment,and the identity information encryption and zero-knowledge identity authentication were tested and analyzed.The experimental results show that the authentication latency and transaction processing capability of the proposed scheme are superior to those of the existing SHAO scheme.