消息完整防篡改,防重复恶意请求,失效时间控制,消息来源可靠性验证
防重复提交(失效之前),requestId
https://www.jianshu.com/p/df4e02fbed12
https://www.jianshu.com/p/bf58cf32dd9d
http://www.ruanyifeng.com/blog/2013/06/rsa_algorithm_part_one.html
原文:https://www.cnblogs.com/guligei/p/11264426.html