What might cause System.Net Error:AcquireCredentialsHandle() failed with error 0X8009030D?

Question

我有一段简单的 https 连接代码，适用于一个 ssl 主机，即使根证书颁发机构不受信任也能连接（这是一个沙盒环境，所以我们不担心这会造成安全漏洞，现在），并使用 Nuget 包 OpenSSL.X509Certificate2Provider:

从文本文件加载证书和密钥

    public async Task<string> Register()
    {
        ServicePointManager.Expect100Continue = true;
        ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
        ServicePointManager.ServerCertificateValidationCallback = (sender, cert, chain, sslPolicyErrors) => true;

        using (var handler = new HttpClientHandler())
        {
            var rawcert = File.ReadAllText(@"C:\OpenSSL\bin\certTransport.pem");
            var rawkey = File.ReadAllText(@"C:\OpenSSL\bin\privateKeyTransport.key");

            var provider = new CertificateFromFileProvider(rawcert, rawkey);
            var cert = provider.Certificate;
            handler.ClientCertificateOptions = ClientCertificateOption.Manual;
            handler.ServerCertificateCustomValidationCallback +=
                (HttpRequestMessage req, X509Certificate2 cert2, X509Chain chain, SslPolicyErrors err) =>
                {
                    return true;
                };

            handler.ClientCertificates.Add(cert);

            using (var client = new HttpClient(handler))
            {
                client.BaseAddress = new Uri("https://{uri}/");
                var response = await client.GetStringAsync("register");
                return response;
            }
        }
    }

当我将此代码指向另一台主机（应该以完全相同的方式对其进行保护）时，出现以下错误： System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel.

深入研究日志，我发现： System.Net Information: 0 : [35036] AcquireCredentialsHandle(package = Microsoft Unified Security Protocol Provider, intent = Outbound, scc = System.Net.SecureCredential) System.Net Error: 0 : [35036] AcquireCredentialsHandle() failed with error 0X8009030D.

为此搜索堆栈，我发现许多与证书存储权限相关的错误，但本例中的客户端证书并未从存储中加载。

我还发现许多与 SecurityProtocolType 相关的问题。我已验证服务器正在使用 Tls1.2（仅）。

我从 VS 2017 Enterprise 中的单元测试调用代码运行 Win10 x64 的管理权限。该代码包含在 .Net 4.7 Class 库中，未托管在 IIS 中。

可能是什么导致了这个问题？

更新根据@Jeroen Mostert 在下方的有用评论，我尝试了使用 OpenSSL 的基本连接测试。稍微匿名的结果：

OpenSSL> s_client -connect {REMOVED}:443 -CAfile C:\OpenSSL\bin\archive-ii\transport-production-new\certTransport.pem
CONNECTED(000001F0)
depth=2 C = GB, O = OK, CN = {REMOVED} Root CA
verify error:num=19:self signed certificate in certificate chain
---
Certificate chain
0 s:/C=GB/O={REMOVED}/OU={REMOVED}/CN={REMOVED}
i:/C=GB/O={REMOVED}/CN={REMOVED} Issuing CA
1 s:/C=GB/O={REMOVED}/CN={REMOVED} Issuing CA
i:/C=GB/O={REMOVED}/CN={REMOVED} Root CA
2 s:/C=GB/O={REMOVED}/CN={REMOVED} Root CA
i:/C=GB/O={REMOVED}/CN={REMOVED} Root CA
---
Server certificate
-----BEGIN CERTIFICATE-----
{REMOVED}
-----END CERTIFICATE-----
subject=/C=GB/O={REMOVED}/OU={REMOVED}/CN={REMOVED}
issuer=/C=GB/O={REMOVED}/CN={REMOVED} Issuing CA
---
Acceptable client certificate CA names
/C=GB/O={REMOVED}/CN={REMOVED} Issuing CA
/C=GB/O={REMOVED}/CN={REMOVED} Root CA
Client Certificate Types: RSA sign, DSA sign, ECDSA sign
Requested Signature Algorithms:     RSA+SHA512:DSA+SHA512:ECDSA+SHA512:RSA+SHA384:DSA+SHA384:ECDSA+SHA384:RSA+SHA256:DSA+SHA256:ECDSA+SHA256:RSA+SHA224:DSA+SHA224:ECDSA+SHA224:RSA+SHA1:DSA+SHA1:ECDSA+SHA1
Shared Requested Signature Algorithms: RSA+SHA512:DSA+SHA512:ECDSA+SHA512:RSA+SHA384:DSA+SHA384:ECDSA+SHA384:RSA+SHA256:DSA+SHA256:ECDSA+SHA256:RSA+SHA224:DSA+SHA224:ECDSA+SHA224:RSA+SHA1:DSA+SHA1:ECDSA+SHA1
Peer signing digest: SHA512
Server Temp Key: ECDH, P-256, 256 bits
---
SSL handshake has read 5155 bytes and written 446 bytes
---
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES128-GCM-SHA256
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
    Protocol  : TLSv1.2
    Cipher    : ECDHE-RSA-AES128-GCM-SHA256
    Session-ID:
    Session-ID-ctx:
    Master-Key: {REMOVED}
    Key-Arg   : None
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    Start Time: 1527164830
    Timeout   : 300 (sec)
    Verify return code: 19 (self signed certificate in certificate chain)
---

有什么不对吗？

我还查看了 CAPI2 日志（如评论中所建议）。这显示与不受信任的根证书相关的错误，如下所示：

这是否意味着我的验证回调不起作用 - 如果是这样，知道为什么会这样吗？

进一步更新：

如果我删除附加证书的代码行，那么错误就会消失 - 我通过了 MTLS 测试端点（但是，当然，在那里进行的 MTLS 测试失败了）。

这说明什么？证书本身有问题？

Answer 1

问题最终出在 OpenSSL.X509Certificate2Provider NuGet 包的 CertificateFromFileProvider 方法的输出上。

无论出于何种原因，创建的证书都无法正常工作。采用相同的输入文件并生成 .pfx 和 OpenSSL 导致 X509Certificate2 工作正常。

What might cause System.Net Error:AcquireCredentialsHandle() failed with error 0X8009030D?

What might cause System.Net Error:AcquireCredentialsHandle() failed with error 0X8009030D?

c#

ssl

x509certificate

dotnet-httpclient

tls1.2