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C# SafeSslHandle.?.Dispose方法代码示例

本文整理汇总了C#中Microsoft.Win32.SafeHandles.SafeSslHandle.?.Dispose方法的典型用法代码示例。如果您正苦于以下问题:C# SafeSslHandle.?.Dispose方法的具体用法?C# SafeSslHandle.?.Dispose怎么用?C# SafeSslHandle.?.Dispose使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Microsoft.Win32.SafeHandles.SafeSslHandle的用法示例。


在下文中一共展示了SafeSslHandle.?.Dispose方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: TlsClientCertCallback

            private int TlsClientCertCallback(IntPtr ssl, out IntPtr certHandle, out IntPtr privateKeyHandle)
            {
                const int CertificateSet = 1, NoCertificateSet = 0, SuspendHandshake = -1;

                certHandle = IntPtr.Zero;
                privateKeyHandle = IntPtr.Zero;

                if (ssl == IntPtr.Zero)
                {
                    Debug.Fail("Expected valid SSL pointer");
                    EventSourceTrace("Invalid SSL pointer in callback");
                    return NoCertificateSet;
                }

                SafeSslHandle sslHandle = null;
                X509Chain chain = null;
                X509Certificate2 certificate = null;
                try
                {
                    sslHandle = new SafeSslHandle(ssl, ownsHandle: false);

                    ISet<string> issuerNames = GetRequestCertificateAuthorities(sslHandle);

                    if (_clientCertificates != null) // manual mode
                    {
                        // If there's one certificate, just use it. Otherwise, try to find the best one.
                        if (_clientCertificates.Count == 1)
                        {
                            certificate = _clientCertificates[0];
                            chain = TLSCertificateExtensions.BuildNewChain(certificate, includeClientApplicationPolicy: false);
                        }
                        else if (!_clientCertificates.TryFindClientCertificate(issuerNames, out certificate, out chain))
                        {
                            EventSourceTrace("No manual certificate or chain.");
                            return NoCertificateSet;
                        }
                    }
                    else if (!GetAutomaticClientCertificate(issuerNames, out certificate, out chain)) // automatic mode
                    {
                        EventSourceTrace("No automatic certificate or chain.");
                        return NoCertificateSet;
                    }

                    SafeEvpPKeyHandle privateKeySafeHandle = null;
                    Interop.Crypto.CheckValidOpenSslHandle(certificate.Handle);
                    using (RSAOpenSsl rsa = certificate.GetRSAPrivateKey() as RSAOpenSsl)
                    {
                        if (rsa != null)
                        {
                            privateKeySafeHandle = rsa.DuplicateKeyHandle();
                            EventSourceTrace("RSA key");
                        }
                        else
                        {
                            using (ECDsaOpenSsl ecdsa = certificate.GetECDsaPrivateKey() as ECDsaOpenSsl)
                            {
                                if (ecdsa != null)
                                {
                                    privateKeySafeHandle = ecdsa.DuplicateKeyHandle();
                                    EventSourceTrace("ECDsa key");
                                }
                            }
                        }
                    }

                    if (privateKeySafeHandle == null || privateKeySafeHandle.IsInvalid)
                    {
                        EventSourceTrace("Invalid private key");
                        return NoCertificateSet;
                    }

                    SafeX509Handle certSafeHandle = Interop.Crypto.X509Duplicate(certificate.Handle);
                    Interop.Crypto.CheckValidOpenSslHandle(certSafeHandle);
                    if (chain != null)
                    {
                        for (int i = chain.ChainElements.Count - 2; i > 0; i--)
                        {
                            SafeX509Handle dupCertHandle = Interop.Crypto.X509Duplicate(chain.ChainElements[i].Certificate.Handle);
                            Interop.Crypto.CheckValidOpenSslHandle(dupCertHandle);
                            if (!Interop.Ssl.SslAddExtraChainCert(sslHandle, dupCertHandle))
                            {
                                EventSourceTrace("Failed to add extra chain certificate");
                                dupCertHandle.Dispose(); // we still own the safe handle; clean it up
                                return SuspendHandshake;
                            }
                            dupCertHandle.SetHandleAsInvalid(); // ownership has been transferred to sslHandle; do not free via this safe handle
                        }
                    }

                    certHandle = certSafeHandle.DangerousGetHandle();
                    privateKeyHandle = privateKeySafeHandle.DangerousGetHandle();
                    EventSourceTrace("Client certificate set: {0}", certificate);

                    // Ownership has been transferred to OpenSSL; do not free these handles
                    certSafeHandle.SetHandleAsInvalid();
                    privateKeySafeHandle.SetHandleAsInvalid();

                    return CertificateSet;
                }
                finally
//.........这里部分代码省略.........
开发者ID:AndreGleichner,项目名称:corefx,代码行数:101,代码来源:CurlHandler.ClientCertificateProvider.cs


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