Unity 2017 cannot use https

as the title. I use unity2017 to access https through HttpsWebRequest, and unity throws the following exception：

HttpPostReturn Error: Error: SecureChannelFailure (The authentication or decryption has failed.)

  at System.Net.HttpWebRequest.EndGetRequestStream (System.IAsyncResult asyncResult) [0x0003a] in <a3bc56cd038446b2ba8027b187001bf8>:0 

  at System.Net.HttpWebRequest.GetRequestStream () [0x0004e] in <a3bc56cd038446b2ba8027b187001bf8>:0 

  at WebHttp.HttpPostReturn (System.String url, System.String param, System.Boolean isJson) [0x00066] in F:\UnityWorkspace\TestOpenssl\Assets\Scripts\WebHttp.cs:100 

UnityEngine.Debug:Log(Object)

I know unity2018.1 has fixed this problem and can connect normally, but my project uses 2017. so, Can someone tell me which version of the 2017 patch fixes this problem. tks

 

Why not just check if the issue is fixed in the latest 2017.4 LTS? It is either that or read the release notes to find it, and there's been 35 releases of just 2017.4.x, so have fun with that.

 

thank you for your reply. I found more information and found that the previous version of unity2018 was not implemented, but I solved this problem through a third-party plugin.
https://github.com/proyecto26/RestClient