如何在 .Net 3.5 框架中实现安全协议 TLS 1.2 [英] How to implement Security Protocols TLS 1.2 in .Net 3.5 framework

问题描述

随着 Paypal 更新他们的响应，我需要在我现有的 .NET 3.5 框架上的应用程序中将安全协议 TLS 更新到 v1.2.在现有代码中更新此内容需要进行哪些更改，我无法将应用程序更新到较新的框架.

As Paypal updated their response, I need to update security protocols TLS to v1.2 in my existing application which is on .NET 3.5 framework. What changes required to update this in existing code, I cannot update the application to newer framework.

推荐答案

我使用 VS 2008 和 .net 3.5.30729.4926.我所要做的就是:

I'm using VS 2008 with .net 3.5.30729.4926. All I had to do was:

添加导入:

Imports System.Security.Authentication
Imports System.Net

将此添加到我的代码中(C#):

Add this to my code (C#):

public const SslProtocols _Tls12 = (SslProtocols)0x00000C00;
public const SecurityProtocolType Tls12 = (SecurityProtocolType)_Tls12;
ServicePointManager.SecurityProtocol = Tls12;

VB.net 版本:

Const _Tls12 As SslProtocols = DirectCast(&HC00, SslProtocols)
Const Tls12 As SecurityProtocolType = DirectCast(_Tls12, SecurityProtocolType)
ServicePointManager.SecurityProtocol = Tls12

Dim wbrq As HttpWebRequest
Dim wbrs As HttpWebResponse
Dim sw As StreamWriter
Dim sr As StreamReader
Dim strResult As String

'Create a new HttpWebRequest object.
wbrq = WebRequest.Create(strURL)
wbrq.Method = "POST"
wbrq.ContentLength = DataString.Length
wbrq.ContentType = "application/x-www-form-urlencoded"

'upload data
sw = New StreamWriter(wbrq.GetRequestStream)
sw.Write(DataString)
sw.Close()

'get response
wbrs = wbrq.GetResponse
sr = New StreamReader(wbrs.GetResponseStream)
strResult = sr.ReadToEnd.Trim
sr.Close()  

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