问TSL/SSL在IIS托管应用程序上失败

EN

        _clientHandler = new WebRequestHandler() { AutomaticDecompression = System.Net.DecompressionMethods.Deflate | System.Net.DecompressionMethods.GZip };
        _clientHandler.ServerCertificateValidationCallback += (sender, cert, chain, sslPolicyErrors) => true; 
        _clientHandler.Proxy = null;
        _clientHandler.UseProxy = false;

        _client = new HttpClient(_clientHandler);

        using (var message = new HttpRequestMessage(HttpMethod.Post, url))
            {
                message.Headers.TryAddWithoutValidation("Content-Type", "application/x-www-form-urlencoded");

                using (var content = CreateUrlContent(request))
                {
                    message.Content = content;

                    using (var response = await _client .SendAsync(message, HttpCompletionOption.ResponseHeadersRead))
                    {
                        return await Deserialize<Models.Token.AccessTokenResponse>(response);
                    }
                }
            }

    {
        "Type": "System.Net.Http.HttpRequestException",
        "Message": "An error occurred while sending the request.",
        "Data": {},
        "InnerException": {
            "Type": "System.Net.WebException",
            "Status": "SecureChannelFailure",
            "Message": "The request was aborted: Could not create SSL\/TLS secure channel.",
            "Data": {},
            "TargetSite": "System.IO.Stream EndGetRequestStream(System.IAsyncResult, System.Net.TransportContext ByRef)",
            "StackTrace": "   at System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, TransportContext& context)\r\n   at System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)",
            "Source": "System",
            "HResult": -2146233079
    },

        System.Net Information: 0 : [7608] Current OS installation type is 'Server'.
    System.Net Verbose: 0 : [5424] Entering HttpWebRequest#45858001::HttpWebRequest(https://secret.Url.To.Hide.Com/token#1252827567)
    System.Net Information: 0 : [5424] RAS supported: True
    System.Net Verbose: 0 : [5424] Exiting HttpWebRequest#45858001::HttpWebRequest() 
    System.Net Verbose: 0 : [5424] Entering HttpWebRequest#45858001::HttpWebRequest(uri: 'https://secret.Url.To.Hide.Com/token', connectionGroupName: '42319532')
    System.Net Verbose: 0 : [5424] Exiting HttpWebRequest#45858001::HttpWebRequest() 
    System.Net Verbose: 0 : [5424] Entering ServicePoint#54863560::ServicePoint(secret.Url.To.Hide.Com:443)
    System.Net Information: 0 : [5424] Associating HttpWebRequest#45858001 with ServicePoint#54863560
    System.Net Verbose: 0 : [6548] Entering HttpWebRequest#45858001::BeginGetRequestStream()
    System.Net Information: 0 : [6548] Associating Connection#7412602 with HttpWebRequest#45858001
    System.Net.Sockets Verbose: 0 : [6548] Entering Socket#63549928::Socket(AddressFamily#2)
    System.Net.Sockets Verbose: 0 : [6548] Exiting Socket#63549928::Socket() 
    System.Net.Sockets Verbose: 0 : [6548] Entering Socket#47270543::Socket(AddressFamily#23)
    System.Net.Sockets Verbose: 0 : [6548] Exiting Socket#47270543::Socket() 
    System.Net.Sockets Verbose: 0 : [6548] Entering DNS::TryInternalResolve(secret.Url.To.Hide.Com)
    System.Net.Sockets Verbose: 0 : [6548] Entering Socket#63549928::BeginConnectEx()
    System.Net.Sockets Verbose: 0 : [6548] Entering Socket#63549928::InternalBind(0.0.0.0:0#0)
    System.Net.Sockets Verbose: 0 : [6548] Exiting Socket#63549928::InternalBind() 
    System.Net.Sockets Verbose: 0 : [6548] Exiting Socket#63549928::BeginConnectEx()    -> ConnectOverlappedAsyncResult#3708755
    System.Net Verbose: 0 : [6548] Exiting HttpWebRequest#45858001::BeginGetRequestStream()     -> ContextAwareResult#31973720
    System.Net.Sockets Verbose: 0 : [3268] Entering Socket#63549928::EndConnect(ConnectOverlappedAsyncResult#3708755)
    System.Net.Sockets Verbose: 0 : [3268] Entering Socket#63549928::InternalEndConnect(ConnectOverlappedAsyncResult#3708755)
    System.Net.Sockets Information: 0 : [3268] Socket#63549928 - Created connection from 10.3.18.21:49787 to 193.86.xx.xxx:443.
    System.Net.Sockets Verbose: 0 : [3268] Exiting Socket#63549928::InternalEndConnect() 
    System.Net.Sockets Verbose: 0 : [3268] Exiting Socket#63549928::EndConnect() 
    System.Net.Sockets Verbose: 0 : [3268] Entering Socket#47270543::Close()
    System.Net.Sockets Verbose: 0 : [3268] Entering Socket#47270543::Dispose()
    System.Net.Sockets Verbose: 0 : [3268] Exiting Socket#47270543::Close() 
    System.Net Information: 0 : [3268] Connection#7412602 - Created connection from 10.3.18.21:49787 to 193.86.xx.xxx:443.
    System.Net Information: 0 : [3268] TlsStream#19483210::.ctor(host=secret.Url.To.Hide.Com, #certs=0, checkCertificateRevocationList=False, sslProtocols=None)
    System.Net Information: 0 : [3268] Associating HttpWebRequest#45858001 with ConnectStream#23811154
    System.Net Information: 0 : [3268] HttpWebRequest#45858001 - Request: POST /token HTTP/1.1
    
    System.Net Information: 0 : [3268] ConnectStream#23811154 - Sending headers
    {
    Authorization: Basic YOU DO NOT NEED TO SEE SECRET KEY HERE
    Content-Type: application/x-www-form-urlencoded
    Host: secret.Url.To.Hide.Com
    Content-Length: 289
    Expect: 100-continue
    Accept-Encoding: gzip, deflate
    Connection: Keep-Alive
    }.
    System.Net Information: 0 : [3268] SecureChannel#21312719::.ctor(hostname=secret.Url.To.Hide.Com, #clientCertificates=0, encryptionPolicy=RequireEncryption)
    System.Net Information: 0 : [3268] Enumerating security packages:
    System.Net Information: 0 : [3268]     Negotiate
    System.Net Information: 0 : [3268]     NegoExtender
    System.Net Information: 0 : [3268]     Kerberos
    System.Net Information: 0 : [3268]     NTLM
    System.Net Information: 0 : [3268]     Schannel
    System.Net Information: 0 : [3268]     Microsoft Unified Security Protocol Provider
    System.Net Information: 0 : [3268]     WDigest
    System.Net Information: 0 : [3268]     TSSSP
    System.Net Information: 0 : [3268]     pku2u
    System.Net Information: 0 : [3268]     CREDSSP
    System.Net Information: 0 : [3268] SecureChannel#21312719 - Left with 0 client certificates to choose from.
    System.Net Information: 0 : [3268] SecureChannel#21312719::.AcquireClientCredentials, new SecureCredential() (flags=(ValidateManual, NoDefaultCred, SendAuxRecord, UseStrongCrypto), m_ProtocolFlags=(Zero), m_EncryptionPolicy=RequireEncryption)
    System.Net Information: 0 : [3268] AcquireCredentialsHandle(package = Microsoft Unified Security Protocol Provider, intent  = Outbound, scc     = System.Net.SecureCredential)
    System.Net Information: 0 : [3268] InitializeSecurityContext(credential = System.Net.SafeFreeCredential_SECURITY, context = (null), targetName = secret.Url.To.Hide.Com, inFlags = ReplayDetect, SequenceDetect, Confidentiality, AllocateMemory, InitManualCredValidation)
    System.Net Information: 0 : [3268] InitializeSecurityContext(In-Buffer length=0, Out-Buffer length=164, returned code=ContinueNeeded).
    System.Net.Sockets Verbose: 0 : [3268] Entering Socket#63549928::BeginSend()
    System.Net.Sockets Verbose: 0 : [3268] Exiting Socket#63549928::BeginSend()     -> OverlappedAsyncResult#55998275
    System.Net.Sockets Verbose: 0 : [9712] Data from Socket#63549928::PostCompletion
    System.Net.Sockets Verbose: 0 : [9712] 00000000 : 16 03 03 00 9F 01 00 00-9B 03 03 62 3C 1A 7E 16 : ...........b<.~.
    System.Net.Sockets Verbose: 0 : [9712] 00000010 : E3 DC 6F 9F 75 12 6F E1-2B 57 9E CB 88 6E 45 62 : ..o.u.o.+W...nEb
    System.Net.Sockets Verbose: 0 : [9712] 00000020 : C8 2B F2 7A 1A 9C 7D 72-F1 CA 22 00 00 20 C0 28 : .+.z..}r..".. .(
    System.Net.Sockets Verbose: 0 : [9712] 00000030 : C0 27 C0 14 C0 13 C0 2C-C0 2B C0 24 C0 23 C0 0A : .'.....,.+.$.#..
    System.Net.Sockets Verbose: 0 : [9712] 00000040 : C0 09 00 9D 00 9C 00 3D-00 3C 00 35 00 2F 01 00 : .......=.<.5./..
    System.Net.Sockets Verbose: 0 : [9712] 00000050 : 00 52 00 00 00 1B 00 19-00 00 16 6F 69 64 63 2E : .R.........oidc.
    System.Net.Sockets Verbose: 0 : [9712] 00000060 : 73 61 6E 64 62 6F 78 2E-62 61 6E 6B 69 64 2E 63 : sandbox.bankid.c
    System.Net.Sockets Verbose: 0 : [9712] 00000070 : 7A 00 0A 00 08 00 06 00-19 00 18 00 17 00 0B 00 : z...............
    System.Net.Sockets Verbose: 0 : [9712] 00000080 : 02 01 00 00 0D 00 14 00-12 06 01 06 03 04 01 05 : ................
    System.Net.Sockets Verbose: 0 : [9712] 00000090 : 01 02 01 04 03 05 03 02-03 02 02 00 17 00 00 FF : ................
    System.Net.Sockets Verbose: 0 : [9712] 000000A0 : 01 00 01 00                                     : ....
    System.Net.Sockets Verbose: 0 : [9712] Entering Socket#63549928::EndSend(OverlappedAsyncResult#55998275)
    System.Net.Sockets Verbose: 0 : [9712] Exiting Socket#63549928::EndSend()   -> Int32#164
    System.Net.Sockets Verbose: 0 : [9712] Entering Socket#63549928::BeginReceive()
    System.Net.Sockets Verbose: 0 : [9712] Exiting Socket#63549928::BeginReceive()  -> OverlappedAsyncResult#29428925
    System.Net.Sockets Verbose: 0 : [9712] Data from Socket#63549928::PostCompletion
    System.Net.Sockets Verbose: 0 : [9712] 00000000 : 15 03 03 00 02                                  : .....
    System.Net.Sockets Verbose: 0 : [9712] Entering Socket#63549928::EndReceive(OverlappedAsyncResult#29428925)
    System.Net.Sockets Verbose: 0 : [9712] Exiting Socket#63549928::EndReceive()    -> Int32#5
    System.Net.Sockets Verbose: 0 : [9712] Entering Socket#63549928::BeginReceive()
    System.Net.Sockets Verbose: 0 : [9712] Exiting Socket#63549928::BeginReceive()  -> OverlappedAsyncResult#23934571
    System.Net.Sockets Verbose: 0 : [8176] Data from Socket#63549928::PostCompletion
    System.Net.Sockets Verbose: 0 : [8176] 00000000 : 02 28                                           : .(
    System.Net.Sockets Verbose: 0 : [8176] Entering Socket#63549928::EndReceive(OverlappedAsyncResult#23934571)
    System.Net.Sockets Verbose: 0 : [8176] Exiting Socket#63549928::EndReceive()    -> Int32#2
    System.Net Information: 0 : [8176] InitializeSecurityContext(credential = System.Net.SafeFreeCredential_SECURITY, context = bc0e160:3343330, targetName = secret.Url.To.Hide.Com, inFlags = ReplayDetect, SequenceDetect, Confidentiality, AllocateMemory, InitManualCredValidation)
    System.Net Information: 0 : [8176] InitializeSecurityContext(In-Buffers count=2, Out-Buffer length=0, returned code=IllegalMessage).
    System.Net.Sockets Verbose: 0 : [8176] Entering Socket#63549928::Dispose()
    System.Net Error: 0 : [8176] Exception in HttpWebRequest#45858001:: - The request was aborted: Could not create SSL/TLS secure channel..
    System.Net Verbose: 0 : [8176] Entering HttpWebRequest#45858001::EndGetRequestStream()
    System.Net Error: 0 : [8176] Exception in HttpWebRequest#45858001::EndGetRequestStream - The request was aborted: Could not create SSL/TLS secure channel..
    System.Net Information: 0 : [7504] ServicePoint#54863560::CloseConnectionGroupInternal(42319532)
    System.Net Information: 0 : [7504] ServicePoint#54863560::CloseConnectionGroupHelper(connectionGroupName=42319532, closeInternal=True)
    System.Net Information: 0 : [7504] ServicePoint#54863560::ReleaseConnectionGroup(42319532S>I>&<>c#55601314::<.ctor>b__19_0)
    System.Net Information: 0 : [7504] ServicePoint#54863560::ReleaseConnectionGroup, returning(true)
    System.Net Information: 0 : [7504] ServicePoint#54863560::CloseConnectionGroupHelper, returning(True)