消息恢复过程 meaning in Chinese

message retrieval procedure

Furthermore , the scheme is improved , and it is shown that the improved scheme is more secure than the original by analyzing the security of the improved scheme , and has only one exponentiation modulo p and two hash - function evaluations for verification
此外，对原方案进行了改进，通过对改进方案的安全性分析得出结论；改进方案此原方案更安全，并且消息恢复过程只需要计算一次大数模幂乘和两次单向函数。