Research On Security Protocol With Privacy Protection Function In E-commerce

While the new e-commerce model brings convenience to our life,it also brings huge economic benefits to society and promotes the development of technological innovation.However,data leakage,network attack and other network security issues in e-commerce are also emerging in an endless stream,bringing various crises and hidden dangers to the country and people.Therefore,the security,reliability,and privacy of protocols in e-commerce are particularly important.Starting from three different applications of e-commerce,this paper studies the existing insecurity in the current protocol,and proposes the corresponding security protocol for the purpose of improving the security of the protocol and strengthening the privacy protection of users.The details are as follows:(1)Proposed a secure electronic transaction protocol with privacy protection.This agreement enables consumers and sellers to conduct transactions with trusted payment service providers.The signcryption algorithm in the agreement can guarantee the security of the transaction.When a malicious consumer appears,the payment service provider can remove the anonymity of the malicious consumer and pursue accountability on the basis of protecting user privacy.moreover,this protocol satisfies the confidentiality and non-repudiation of messages,consumers have anonymity and traceability,and the fairness of electronic transactions.(2)Proposed a data transaction protocol with privacy protection in the blockchain environment.This agreement implements direct data transactions between consumers and sellers,and solves the problem of proof of data security and availability during the transaction.In addition,the agreement protects the fairness of both parties to the transaction while protecting the privacy of consumers and the privacy of transaction data.(3)Proposed an efficient multi-party contract signing agreement was signed for multiple signers.It reduce the complexity of transactions and communication costs by replacing third parties with blockchain.With the help of an efficient certificateless aggregation signature idea,the signing party's signature verification efficiency under the blockchain is improved.In addition,the method of only publishing the temporary key of the signer on the blockchain chain effectively reduces the system overhead.