我有一个简单的web服务调用,由。net (c#) 2.0 Windows应用程序生成,通过Visual Studio生成的web服务代理,用于同样用c#(2.0)编写的web服务。这种方法已经有效了好几年,并且在十几个正在运行的地方继续有效。
在新地点的新安装遇到了问题。当试图调用web服务时,它失败了,消息说:
无法为SSL/TLS安全建立信任关系
通道
web服务的URL使用SSL (https://)——但这已经在许多其他位置工作了很长时间(并继续这样做)。
我该往哪里看?这可能是Windows和。net之间的安全问题,是此安装独有的吗?如果是,我在哪里建立信任关系?我迷路了!
如果你使用的是Windows 2003,你可以这样做:
Open Microsoft Management Console
(Start --> Run --> mmc.exe);
Choose File --> Add/Remove Snap-in;
In the Standalone tab, choose Add;
Choose the Certificates snap-in, and
click Add;
In the wizard, choose the Computer
Account, and then choose Local
Computer. Press Finish to end the
wizard;
Close the Add/Remove Snap-in dialog;
Navigate to Certificates (Local
Computer) and choose a store to
import:
If you have the Root CA certificate
for the company that issued the
certificate, choose Trusted Root
Certification Authorities;
If you have the certificate for the
server itself, choose Other People
Right-click the store and choose All
Tasks --> Import
Follow the wizard and provide the
certificate file you have;
After that, simply restart IIS and try
calling the web service again.
参考:http://www.outsystems.com/NetworkForums/ViewTopic.aspx?Topic=Web-Services: -Could-not-establish-trust-relationship-for-the-SSL / TLS -…
下面的代码片段将修复您正在调用的服务器上的SSL证书有问题的情况。例如,证书可能是自签名的,或者证书和服务器之间的主机名可能不匹配。
如果您正在调用您直接控制之外的服务器,这是危险的,因为您不能再确定您正在与您认为连接到的服务器通信。但是,如果您处理的是内部服务器,而获得“正确的”证书是不现实的,请使用以下命令告诉web服务忽略证书问题并勇敢地继续工作。
前两个使用lambda表达式,第三个使用常规代码。第一个接受任何证书。后两者至少检查证书中的主机名是否是您所期望的主机名。
... 希望对你有帮助
//Trust all certificates
System.Net.ServicePointManager.ServerCertificateValidationCallback =
((sender, certificate, chain, sslPolicyErrors) => true);
// trust sender
System.Net.ServicePointManager.ServerCertificateValidationCallback
= ((sender, cert, chain, errors) => cert.Subject.Contains("YourServerName"));
// validate cert by calling a function
ServicePointManager.ServerCertificateValidationCallback += new RemoteCertificateValidationCallback(ValidateRemoteCertificate);
// callback used to validate the certificate in an SSL conversation
private static bool ValidateRemoteCertificate(object sender, X509Certificate cert, X509Chain chain, SslPolicyErrors policyErrors)
{
bool result = cert.Subject.Contains("YourServerName");
return result;
}
如果你使用的是Windows 2003,你可以这样做:
Open Microsoft Management Console
(Start --> Run --> mmc.exe);
Choose File --> Add/Remove Snap-in;
In the Standalone tab, choose Add;
Choose the Certificates snap-in, and
click Add;
In the wizard, choose the Computer
Account, and then choose Local
Computer. Press Finish to end the
wizard;
Close the Add/Remove Snap-in dialog;
Navigate to Certificates (Local
Computer) and choose a store to
import:
If you have the Root CA certificate
for the company that issued the
certificate, choose Trusted Root
Certification Authorities;
If you have the certificate for the
server itself, choose Other People
Right-click the store and choose All
Tasks --> Import
Follow the wizard and provide the
certificate file you have;
After that, simply restart IIS and try
calling the web service again.
参考:http://www.outsystems.com/NetworkForums/ViewTopic.aspx?Topic=Web-Services: -Could-not-establish-trust-relationship-for-the-SSL / TLS -…