中文摘要：

比特币的成功证明了区块链技术的价值。在分析了区块链的特点、局限性以及其链式结构散列原理的基础上,研究了区块链技术的应用,提出了基于区块链的B2B＋B2C供应链各交易主体交易结构简图及动态多中心协同认证模型。实证分析了区块链在B2B＋B2C供应链电子交易中的产生过程,指出了区块链在B2B＋B2C供应链企业进行推广使用所面临的问题。其研究成果对于密码学与区块链的应用提出了新的思路。

英文摘要：

The value of block chain technology is proved by the success of Bitcoin. The characteristics, limitations and its chain structure Hash principle of block chain were analyzed, the applications of block chain technology were researched, the B2B＋B2C supply chain each transaction subject transaction structure diagram and dynamic multi-center coordination authentication model based on block chain were proposed. Then the producing process of block chain in B2B＋B2C supply chain electronic transaction with example was analyzed, and the facing problems that block chain spreading use in B2B＋B2C supply chain enterprise were pointed out. The research results have proposed a new idea for the application of cryptography and block chain.