基于安全多方计算的DPOS方案在医疗数据共享中的应用

his article optimizes and improves the DPOS solution to address the security level privacy issues in blockchain based medical data sharing systems. Based on this, an optimization algorithm based on node type is proposed, which can effectively solve the limitations of previous passive voting, vulnerability to attacks, and node solidification. The improved algorithm is based on the secure generation random protocol and combines it with the MP-RNG protocol to achieve advantages such as witness identity random extraction and identity concealment. The experimental results show that the scheme has improved both fault tolerance and security.