[英]The request was aborted: Could not create SSL/TLS secure channel
我的客户已告知我有关他们的 SSL 和 Internet Explorer 的问题。 他们说他们在访问 URL 时遇到了信任问题。
我正在通过 HTTPS 访问 JSON。 该网站位于一台服务器上，我在本地计算机上使用控制台应用程序。 我试图绕过 SSL 证书，但是，我的代码仍然失败。
我可以改变 HttpWebRequest 来解决这个问题吗？
我使用以下代码收到此错误：
// You must change the URL to point to your Web server.
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "GET";
req.AllowAutoRedirect = true;
// allows for validation of SSL conversations
ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
WebResponse respon = req.GetResponse();
Stream res = respon.GetResponseStream();
string ret = "";
byte[] buffer = new byte[1048];
int read = 0;
while ((read = res.Read(buffer, 0, buffer.Length)) > 0)
{
//Console.Write(Encoding.ASCII.GetString(buffer, 0, read));
ret += Encoding.ASCII.GetString(buffer, 0, read);
}
return ret;
我必须启用其他安全协议版本才能解决此问题：
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls
| SecurityProtocolType.Tls11
| SecurityProtocolType.Tls12
| SecurityProtocolType.Ssl3;
我使用以下代码启用了日志记录：
http://blogs.msdn.com/b/dgorti/archive/2005/09/18/471003.aspx
日志位于 bin/debug 文件夹中（我的控制台应用程序处于调试模式）。 您需要将安全协议类型添加为 SSL 3
我在日志中收到算法不匹配。 这是我的新代码：
// You must change the URL to point to your Web server.
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "GET";
ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
// Skip validation of SSL/TLS certificate
ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
WebResponse respon = req.GetResponse();
Stream res = respon.GetResponseStream();
string ret = "";
byte[] buffer = new byte[1048];
int read = 0;
while ((read = res.Read(buffer, 0, buffer.Length)) > 0)
{
Console.Write(Encoding.ASCII.GetString(buffer, 0, read));
ret += Encoding.ASCII.GetString(buffer, 0, read);
}
return ret;
类似于现有答案，但在 PowerShell 中：
[System.Net.ServicePointManager]::SecurityProtocol = `
[System.Net.SecurityProtocolType]::Tls11 -bor
[System.Net.SecurityProtocolType]::Tls12 -bor `
[System.Net.SecurityProtocolType]::Tls -bor `
[System.Net.SecurityProtocolType]::Ssl3
然后调用 Invoke-WebRequest 应该可以工作。
从匿名反馈中得到这个，很好的建议：写这个的更简单的方法是：
[System.Net.ServicePointManager]::SecurityProtocol = @("Tls12","Tls11","Tls","Ssl3")
找到了 Jaykul 的这篇精彩的相关文章： Validating Self-Signed Certificates From .Net and PowerShell
这可能是由一些事情引起的（最有可能是最不可能的）：
客户端不信任服务器的 SSL 证书。 最简单的检查是将浏览器指向 URL 并查看是否有 SSL 锁定图标。 如果您的锁坏了，图标，请单击它以查看问题所在：
服务器需要客户端 SSL 证书 - 在这种情况下，您必须更新代码以使用客户端证书签署请求。
对于 .Net v4.0 我注意到，在创建 HttpWebRequest 对象之前将 ServicePointManager.SecurityProtocol 的值设置为 (SecurityProtocolType)3072 有帮助。
还收到“无法创建 SSL/TLS 安全通道”错误。 这对我有用。 System.Net.ServicePointManager.SecurityProtocol = (System.Net.SecurityProtocolType)3072;
请看下面的链接一次。 SecurityProtocolType.SsL3 现在已经过时了。
如下定义 SecurityProtocol。这对我的问题进行了排序
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
不幸的是，上面提到的答案都不适合我。 下面列出的代码对我来说是一个奇迹。 如果它帮助某人。
ServicePointManager.Expect100Continue = true;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls
| SecurityProtocolType.Tls11
| SecurityProtocolType.Tls12
| SecurityProtocolType.Ssl3;
这必须在创建 HttpWebRequest 之前设置。
我发现证书的类型也起作用。
我有一个证书是：
（以下输出在 mmc 中，证书属性）
数字签名、密钥加密 (a0)
（下面的输出来自我下面的 C# 代码）
X509Extension.X509KeyUsageExtension.KeyUsages = 'KeyEncipherment，的DigitalSignature' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.CrlSign = 'FALSE' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.DataEncipherment = 'FALSE' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.DecipherOnly = 'FALSE' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags。的DigitalSignature = '真'X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.EncipherOnly =' FALSE' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.KeyAgreement = 'FALSE' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.KeyCertSign = 'FALSE' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.KeyEncipherment = '真' X509KeyUsageExtension .KeyUsages.X509KeyUsageFlags.None='False' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.NonRepudiation='False'
以上没有工作。
================================
然后是另一个证书：
（以下输出在 mmc 中，证书属性）
证书签名、离线 CRL 签名、CRL 签名 (06)
（下面的输出来自我下面的 C# 代码）
X509Extension.X509KeyUsageExtension.KeyUsages = 'CrlSign，KeyCertSign' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.CrlSign = '真'X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.DataEncipherment =' FALSE' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.DecipherOnly = 'FALSE' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags。的DigitalSignature = '假' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.EncipherOnly = 'FALSE' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.KeyAgreement = 'FALSE' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.KeyCertSign = '真'X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.KeyEncipherment =' FALSE' X509KeyUsageExtension .KeyUsages.X509KeyUsageFlags.None='False' X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.NonRepudiation='False'
它确实有效
下面的代码将允许您检查您的客户端证书
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;
using System.Text;
namespace MyNamespace
{
public static class SecurityShower
{
public static void ShowHttpWebRequest(System.Net.HttpWebRequest hwr)
{
StringBuilder sb = new StringBuilder();
if (null != hwr)
{
sb.Append("-----------------------------------------------HttpWebRequest" + System.Environment.NewLine);
sb.Append(string.Format("HttpWebRequest.Address.AbsolutePath='{0}'", hwr.Address.AbsolutePath) + System.Environment.NewLine);
sb.Append(string.Format("HttpWebRequest.Address.AbsoluteUri='{0}'", hwr.Address.AbsoluteUri) + System.Environment.NewLine);
sb.Append(string.Format("HttpWebRequest.Address='{0}'", hwr.Address) + System.Environment.NewLine);
sb.Append(string.Format("HttpWebRequest.RequestUri.AbsolutePath='{0}'", hwr.RequestUri.AbsolutePath) + System.Environment.NewLine);
sb.Append(string.Format("HttpWebRequest.RequestUri.AbsoluteUri='{0}'", hwr.RequestUri.AbsoluteUri) + System.Environment.NewLine);
sb.Append(string.Format("HttpWebRequest.RequestUri='{0}'", hwr.RequestUri) + System.Environment.NewLine);
foreach (X509Certificate cert in hwr.ClientCertificates)
{
sb.Append("START*************************************************");
ShowX509Certificate(sb, cert);
sb.Append("END*************************************************");
}
}
string result = sb.ToString();
Console.WriteLine(result);
}
public static void ShowCertAndChain(X509Certificate2 cert)
{
X509Chain chain = new X509Chain();
chain.ChainPolicy.RevocationFlag = X509RevocationFlag.EntireChain;
chain.ChainPolicy.RevocationMode = X509RevocationMode.Offline;
chain.ChainPolicy.VerificationFlags = X509VerificationFlags.AllFlags;
////chain.ChainPolicy.VerificationFlags = X509VerificationFlags.IgnoreCtlSignerRevocationUnknown &&
////X509VerificationFlags.IgnoreRootRevocationUnknown &&
////X509VerificationFlags.IgnoreEndRevocationUnknown &&
////X509VerificationFlags.IgnoreCertificateAuthorityRevocationUnknown &&
////X509VerificationFlags.IgnoreCtlNotTimeValid;
chain.Build(cert);
ShowCertAndChain(cert, chain);
}
public static void ShowCertAndChain(X509Certificate cert, X509Chain chain)
{
StringBuilder sb = new StringBuilder();
if (null != cert)
{
ShowX509Certificate(sb, cert);
}
if (null != chain)
{
sb.Append("-X509Chain(Start)-" + System.Environment.NewLine);
////sb.Append(string.Format("Cert.ChainStatus='{0}'", string.Join(",", chain.ChainStatus.ToList())) + System.Environment.NewLine);
foreach (X509ChainStatus cstat in chain.ChainStatus)
{
sb.Append(string.Format("X509ChainStatus::'{0}'-'{1}'", cstat.Status.ToString(), cstat.StatusInformation) + System.Environment.NewLine);
}
X509ChainElementCollection ces = chain.ChainElements;
ShowX509ChainElementCollection(sb, ces);
sb.Append("-X509Chain(End)-" + System.Environment.NewLine);
}
string result = sb.ToString();
Console.WriteLine(result);
}
private static void ShowX509Extension(StringBuilder sb, int x509ExtensionCount, X509Extension ext)
{
sb.Append(string.Empty + System.Environment.NewLine);
sb.Append(string.Format("--------X509ExtensionNumber(Start):{0}", x509ExtensionCount) + System.Environment.NewLine);
sb.Append(string.Format("X509Extension.Critical='{0}'", ext.Critical) + System.Environment.NewLine);
AsnEncodedData asndata = new AsnEncodedData(ext.Oid, ext.RawData);
sb.Append(string.Format("Extension type: {0}", ext.Oid.FriendlyName) + System.Environment.NewLine);
sb.Append(string.Format("Oid value: {0}", asndata.Oid.Value) + System.Environment.NewLine);
sb.Append(string.Format("Raw data length: {0} {1}", asndata.RawData.Length, Environment.NewLine) + System.Environment.NewLine);
sb.Append(asndata.Format(true) + System.Environment.NewLine);
X509BasicConstraintsExtension basicEx = ext as X509BasicConstraintsExtension;
if (null != basicEx)
{
sb.Append("-X509BasicConstraintsExtension-" + System.Environment.NewLine);
sb.Append(string.Format("X509Extension.X509BasicConstraintsExtension.CertificateAuthority='{0}'", basicEx.CertificateAuthority) + System.Environment.NewLine);
}
X509EnhancedKeyUsageExtension keyEx = ext as X509EnhancedKeyUsageExtension;
if (null != keyEx)
{
sb.Append("-X509EnhancedKeyUsageExtension-" + System.Environment.NewLine);
sb.Append(string.Format("X509Extension.X509EnhancedKeyUsageExtension.EnhancedKeyUsages='{0}'", keyEx.EnhancedKeyUsages) + System.Environment.NewLine);
foreach (Oid oi in keyEx.EnhancedKeyUsages)
{
sb.Append(string.Format("------------EnhancedKeyUsages.Oid.FriendlyName='{0}'", oi.FriendlyName) + System.Environment.NewLine);
sb.Append(string.Format("------------EnhancedKeyUsages.Oid.Value='{0}'", oi.Value) + System.Environment.NewLine);
}
}
X509KeyUsageExtension usageEx = ext as X509KeyUsageExtension;
if (null != usageEx)
{
sb.Append("-X509KeyUsageExtension-" + System.Environment.NewLine);
sb.Append(string.Format("X509Extension.X509KeyUsageExtension.KeyUsages='{0}'", usageEx.KeyUsages) + System.Environment.NewLine);
sb.Append(string.Format("X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.CrlSign='{0}'", (usageEx.KeyUsages & X509KeyUsageFlags.CrlSign) != 0) + System.Environment.NewLine);
sb.Append(string.Format("X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.DataEncipherment='{0}'", (usageEx.KeyUsages & X509KeyUsageFlags.DataEncipherment) != 0) + System.Environment.NewLine);
sb.Append(string.Format("X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.DecipherOnly='{0}'", (usageEx.KeyUsages & X509KeyUsageFlags.DecipherOnly) != 0) + System.Environment.NewLine);
sb.Append(string.Format("X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.DigitalSignature='{0}'", (usageEx.KeyUsages & X509KeyUsageFlags.DigitalSignature) != 0) + System.Environment.NewLine);
sb.Append(string.Format("X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.EncipherOnly='{0}'", (usageEx.KeyUsages & X509KeyUsageFlags.EncipherOnly) != 0) + System.Environment.NewLine);
sb.Append(string.Format("X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.KeyAgreement='{0}'", (usageEx.KeyUsages & X509KeyUsageFlags.KeyAgreement) != 0) + System.Environment.NewLine);
sb.Append(string.Format("X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.KeyCertSign='{0}'", (usageEx.KeyUsages & X509KeyUsageFlags.KeyCertSign) != 0) + System.Environment.NewLine);
sb.Append(string.Format("X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.KeyEncipherment='{0}'", (usageEx.KeyUsages & X509KeyUsageFlags.KeyEncipherment) != 0) + System.Environment.NewLine);
sb.Append(string.Format("X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.None='{0}'", (usageEx.KeyUsages & X509KeyUsageFlags.None) != 0) + System.Environment.NewLine);
sb.Append(string.Format("X509KeyUsageExtension.KeyUsages.X509KeyUsageFlags.NonRepudiation='{0}'", (usageEx.KeyUsages & X509KeyUsageFlags.NonRepudiation) != 0) + System.Environment.NewLine);
}
X509SubjectKeyIdentifierExtension skIdEx = ext as X509SubjectKeyIdentifierExtension;
if (null != skIdEx)
{
sb.Append("-X509SubjectKeyIdentifierExtension-" + System.Environment.NewLine);
sb.Append(string.Format("X509Extension.X509SubjectKeyIdentifierExtension.Oid='{0}'", skIdEx.Oid) + System.Environment.NewLine);
sb.Append(string.Format("X509Extension.X509SubjectKeyIdentifierExtension.SubjectKeyIdentifier='{0}'", skIdEx.SubjectKeyIdentifier) + System.Environment.NewLine);
}
sb.Append(string.Format("--------X509ExtensionNumber(End):{0}", x509ExtensionCount) + System.Environment.NewLine);
}
private static void ShowX509Extensions(StringBuilder sb, string cert2SubjectName, X509ExtensionCollection extColl)
{
int x509ExtensionCount = 0;
sb.Append(string.Format("--------ShowX509Extensions(Start):for:{0}", cert2SubjectName) + System.Environment.NewLine);
foreach (X509Extension ext in extColl)
{
ShowX509Extension(sb, ++x509ExtensionCount, ext);
}
sb.Append(string.Format("--------ShowX509Extensions(End):for:{0}", cert2SubjectName) + System.Environment.NewLine);
}
private static void ShowX509Certificate2(StringBuilder sb, X509Certificate2 cert2)
{
if (null != cert2)
{
sb.Append(string.Format("X509Certificate2.SubjectName.Name='{0}'", cert2.SubjectName.Name) + System.Environment.NewLine);
sb.Append(string.Format("X509Certificate2.Subject='{0}'", cert2.Subject) + System.Environment.NewLine);
sb.Append(string.Format("X509Certificate2.Thumbprint='{0}'", cert2.Thumbprint) + System.Environment.NewLine);
sb.Append(string.Format("X509Certificate2.HasPrivateKey='{0}'", cert2.HasPrivateKey) + System.Environment.NewLine);
sb.Append(string.Format("X509Certificate2.Version='{0}'", cert2.Version) + System.Environment.NewLine);
sb.Append(string.Format("X509Certificate2.NotBefore='{0}'", cert2.NotBefore) + System.Environment.NewLine);
sb.Append(string.Format("X509Certificate2.NotAfter='{0}'", cert2.NotAfter) + System.Environment.NewLine);
sb.Append(string.Format("X509Certificate2.PublicKey.Key.KeySize='{0}'", cert2.PublicKey.Key.KeySize) + System.Environment.NewLine);
////List<X509KeyUsageExtension> keyUsageExtensions = cert2.Extensions.OfType<X509KeyUsageExtension>().ToList();
////List<X509Extension> extensions = cert2.Extensions.OfType<X509Extension>().ToList();
ShowX509Extensions(sb, cert2.Subject, cert2.Extensions);
}
}
private static void ShowX509ChainElementCollection(StringBuilder sb, X509ChainElementCollection ces)
{
int x509ChainElementCount = 0;
foreach (X509ChainElement ce in ces)
{
sb.Append(string.Empty + System.Environment.NewLine);
sb.Append(string.Format("----X509ChainElementNumber:{0}", ++x509ChainElementCount) + System.Environment.NewLine);
sb.Append(string.Format("X509ChainElement.Cert.SubjectName.Name='{0}'", ce.Certificate.SubjectName.Name) + System.Environment.NewLine);
sb.Append(string.Format("X509ChainElement.Cert.Issuer='{0}'", ce.Certificate.Issuer) + System.Environment.NewLine);
sb.Append(string.Format("X509ChainElement.Cert.Thumbprint='{0}'", ce.Certificate.Thumbprint) + System.Environment.NewLine);
sb.Append(string.Format("X509ChainElement.Cert.HasPrivateKey='{0}'", ce.Certificate.HasPrivateKey) + System.Environment.NewLine);
X509Certificate2 cert2 = ce.Certificate as X509Certificate2;
ShowX509Certificate2(sb, cert2);
ShowX509Extensions(sb, cert2.Subject, ce.Certificate.Extensions);
}
}
private static void ShowX509Certificate(StringBuilder sb, X509Certificate cert)
{
sb.Append("-----------------------------------------------" + System.Environment.NewLine);
sb.Append(string.Format("Cert.Subject='{0}'", cert.Subject) + System.Environment.NewLine);
sb.Append(string.Format("Cert.Issuer='{0}'", cert.Issuer) + System.Environment.NewLine);
sb.Append(string.Format("Cert.GetPublicKey().Length='{0}'", cert.GetPublicKey().Length) + System.Environment.NewLine);
X509Certificate2 cert2 = cert as X509Certificate2;
ShowX509Certificate2(sb, cert2);
}
}
}
来自@sameerfair 评论
“对于 .Net v4.0，我注意到，将 ServicePointManager.SecurityProtocol 的值设置为 (SecurityProtocolType)3072 但在创建 HttpWebRequest 对象之前有所帮助。”
上述建议对我有用。 以下是对我有用的代码行
var securedwebserviceurl="https://somedomain.com/service";
ServicePointManager.Expect100Continue = true;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls12 | SecurityProtocolType.Tls | SecurityProtocolType.Tls11;
// Skip validation of SSL/TLS certificate
ServicePointManager.ServerCertificateValidationCallback = delegate { return true; };
var httpWebRequest = (HttpWebRequest)WebRequest.Create(securedwebserviceurl);
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";
httpWebRequest.ProtocolVersion= HttpVersion.Version10;
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream())) {
string responseFromServer = streamReader.ReadToEnd();
}
这对我有用：
ServicePointManager.Expect100Continue = true;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls
| SecurityProtocolType.Tls11
| SecurityProtocolType.Tls12
| SecurityProtocolType.Ssl3;
这对我有用：
ServicePointManager.ServerCertificateValidationCallback = (snder, cert, chain, error) => true;
如果它不起作用，它可能适用于其他解决方案，例如：
ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;
System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12;
ServicePointManager.ServerCertificateValidationCallback = (snder, cert, chain, error) => true;
当托管应用程序的服务器仅支持 Tls 1.2 时，它会很有用。 在这种情况下，您需要删除旧的不安全协议，并仅保留 Tls 1.2：
// Remove insecure protocols (SSL3, TLS 1.0, TLS 1.1)
ServicePointManager.SecurityProtocol &= ~SecurityProtocolType.Ssl3;
ServicePointManager.SecurityProtocol &= ~SecurityProtocolType.Tls;
ServicePointManager.SecurityProtocol &= ~SecurityProtocolType.Tls11;
// Add TLS 1.2
ServicePointManager.SecurityProtocol |= SecurityProtocolType.Tls12;
请求已中止：无法创建SSL / TLS安全通道 - SecurityProtocol行为
[英]The request was aborted: Could not create SSL/TLS secure channel - SecurityProtocol behavior
.NET请求已中止：无法创建SSL / TLS安全通道
[英].NET The request was aborted: Could not create SSL/TLS secure channel
WebException：请求已中止：无法创建SSL / TLS安全通道
[英]WebException: The request was aborted: Could not create SSL/TLS secure channel
请求已中止：无法创建SSL / TLS安全通道异常
[英]The request was aborted: Could not create SSL/TLS secure channel Exception
HttpWebRequest：请求已中止：无法创建SSL / TLS安全通道
[英]HttpWebRequest: The request was aborted: Could not create SSL/TLS secure channel
HttpClientHandler / 请求被中止：无法创建 SSL/TLS 安全通道
[英]HttpClientHandler / The request was aborted: Could not create SSL/TLS secure channel
服务器错误：请求已中止：无法创建SSL / TLS安全通道
[英]Server Error: The request was aborted: Could not create SSL/TLS secure channel
RestSharp 请求中止 - 无法创建 SSL/TLS 安全通道
[英]RestSharp request aborted - could not create SSL/TLS secure channel
该请求已中止：无法为HttpWebRequest创建SSL / TLS安全通道
[英]The request was aborted: Could not create SSL/TLS secure channel for HttpWebRequest
HttpWebRequest::GetResponse - 请求被中止：无法创建 SSL/TLS 安全通道
[英]HttpWebRequest::GetResponse - The request was aborted: Could not create SSL/TLS secure channel
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