Identity-based Multi-intelligent Terminal Collaborative Signature Technology And Application

With the rapid development of information technology,paperless office has been applied to many industries,but there may have security problems such as data tampering and data leakage during transmission,the digital signature guarantees data transmission in an untamper and undeniable way,however,traditional digital signature has high storage overhead,unmanageable and inefficient signature inspection in a multiple person signing the same file.Design a collaborative signature scheme is very necessary to address the above problems.At the same time,public key password system certificate management is complex,the system adopts the identity-based password system.Also,to improve the system security,this system provides security protection for login,registration,and signed file transfer.Finally,based on secret sharing,multiple signature,aggregate signature,identity password,and using SSM framework and Android to realize the multi-intelligent terminal collaborative signature APP,specific research work is as follows:(1)Design and implement a multi-party sharing and collaborative signature scheme.The scheme implements the key generation algorithm with mobile IMEI as identity ID to design an identity-based signature scheme.Further,use the signature key in the SM9 signature scheme as the secret of secret sharing and implement a collaborative signature scheme based on secret sharing and converged signature schemes.The scheme uses SM9 signature key as secrets of secret-sharing schemes,reducing the number of signature authentication,improving inspection efficiency,while reducing the number of signatures and saving storage overhead.(2)Design and implement a multi-aggregation collaborative signature scheme.The scheme implements a multi-party collaborative signature scheme made mobile phone number as identity and based on identity-based aggregation and multiple signatures.The scheme uses the mobile phone number as the identity parameter to participate in the key calculation and multiple signature verification of aggregate signature.The advantage is that check the personal signature first and then verify the aggregated signature when verifying the signature,so that double verification makes the system more secure.(3)Design and implement the identity-based transparent encryption scheme and its related application function modules.It mainly includes: SM9-based transparent encryption scheme for SMS verification code to protect SMS verification code of users in fast login;SM9-based transparent encryption scheme for message code to protect message code of users when registering mailbox;Document-oriented SM9-based transparent encryption transfer scheme for protecting user confidentiality during signed file transfer;The SM9-based verifiable login solution solves the identity-based user login security problem.(4)implement identity-based multi-intelligent terminal cooperative signature APP.Based on the above research scheme,algorithm and technology,an identity-based multi-intelligent terminal collaborative signature APP is designed and implemented according to the software design and development process.Through the test and analysis of the system,the results show that the system can better solve the requirements of intelligent terminal encryption and authentication.