云计算中基于TPM的多银行电子现金系统

针对云计算的虚拟化技术可以解决传统网络中电子现金系统存在的隐私泄露、交易不规范和高成本投入问题, 在已有的工作中, 考虑商家和用户使用同一银行在一定程度上限制了电子现金广泛使用的情况, 提出了一种基于TPM(trusted platform module)的可信云平台多银行电子现金方案。该方案从电子现金支付的效率和安全性方面考虑, 利用群签名和椭圆曲线算法ECC提高协议的执行效率, 运用可信平台模块提供的隐私保护和远程证明功能加强支付协议的安全性。最后, 对方案的安全性和效率进行分析。

Electronic cash system with multiple banks based on TPM for cloud computing

According to the virtualization technology of cloud computing, it can solve the problems that the electronic cash systems exist leakage of privacy, non-standard transactions and high cost in the traditional network. In the existing work, considering merchants and customers used the same bank to restrict the widespread use of electronic cash in a certain degree, the paper presented an multi-bank electronic cash payment scheme for trusted cloud platform based on TPM. Considering the efficiency and security from the electronic cash payment of the scheme, the scheme used the group signature and elliptic curve algorithm ECC to improve the execution efficiency of the protocol, and used the privacy protection and remote attestation function of TPM to achieve security. Finally, the paper analyzed the safety and efficiency of the scheme.