4

正如我在另一个问题中所描述的那样，我构建了一个 Web 服务，该服务将采用用户名/密码并基于这些凭据对 ADFS2 中的用户（移动应用程序）进行身份验证。我的 Web 服务在 ADFS 上配置为 RP。ADFS 颁发 SAML 2.0 令牌。

这是web方法的代码：

public class MobileAuthService : IMobileAuthService
{
    private const string adfsBaseAddress = @"https://<my_adfs_hostname>/adfs/services/";
    private const string endpointSuffix = @"trust/13/issuedtokenmixedsymmetricbasic256";

    public string AuthenticateUser(string username, string password)
    {
        var binding = new WS2007HttpBinding(SecurityMode.Message);
        binding.Security.Message.EstablishSecurityContext = false;
        binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.None;
        binding.Security.Message.ClientCredentialType = MessageCredentialType.UserName;
        binding.Security.Mode = SecurityMode.TransportWithMessageCredential;

        var trustChannelFactory = new WSTrustChannelFactory(binding, new EndpointAddress(adfsBaseAddress + endpointSuffix))
                                        {
                                            TrustVersion = TrustVersion.WSTrust13
                                        };
        trustChannelFactory.Credentials.UserName.UserName = username;
        trustChannelFactory.Credentials.UserName.Password = password;

        var tokenClient = (WSTrustChannel)trustChannelFactory.CreateChannel();

        var rst = new RequestSecurityToken(RequestTypes.Issue, KeyTypes.Symmetric);
        var token = tokenClient.Issue(rst);

        // do some token-related stuff

        return token.Id;
    }
}

当我尝试运行它时（来自浏览器的 GET 调用，因为它为此端点配置了 Web http 绑定）我得到以下异常：

System.ServiceModel.Security.MessageSecurityException - "An unsecured or incorrectly secured fault was received from the other party. See the inner FaultException for the fault code and detail."

内部例外：

System.ServiceModel.FaultException - "An error occurred when verifying security for the message."

我想这与响应签名或证书有关，但我不知道如何克服这个问题，因为我在 WIF 中很新。

4

1 回答 1

5

我已经设法（部分）解决了这个问题。我在我的代码中改变了一些东西，但问题似乎与：

  • STS 端点- 应该/trust/13/usernamemixed用于这种类型的身份验证
  • RST 密钥类型 - 当我设置它时，Bearer它开始返回 SAML 令牌

这是我的最新版本：

public class MobileAuthService : IMobileAuthService
{
    private const string stsEndpointAddress = @"https://<my_adfs_hostname>/adfs/services/trust/13/usernamemixed";

    private const string relyingPartyAddress =
        "https://<my_service_addr>/Auth.svc";

    public string AuthenticateUser(string username, string password)
    {
        var binding = new UserNameWSTrustBinding(SecurityMode.TransportWithMessageCredential)
            {
                ClientCredentialType = HttpClientCredentialType.None
            };

        var trustChannelFactory = new WSTrustChannelFactory(binding, new EndpointAddress(stsEndpointAddress))
                                        {
                                            TrustVersion = TrustVersion.WSTrust13
                                        };

        var channelCredentials = trustChannelFactory.Credentials;
        channelCredentials.UserName.UserName = username;
        channelCredentials.UserName.Password = password;
        channelCredentials.SupportInteractive = false;

        var tokenClient = (WSTrustChannel)trustChannelFactory.CreateChannel();

        var rst = new RequestSecurityToken(RequestTypes.Issue, KeyTypes.Bearer)
            {
                AppliesTo = new EndpointReference(relyingPartyAddress),
                ReplyTo = relyingPartyAddress,
                TokenType = "http://docs.oasis-open.org/wss/oasis-wss-saml-token-profile-1.1#SAMLV2.0"
            };

        // to some token-related stuff (like transformations etc...)
    }
}

我希望这会帮助那些最终遇到类似问题的人。

于 2013-10-31T14:23:49.443 回答