TLS 1.2 not negotiated in .NET 4.7 without explicit ServicePointManager.SecurityProtocol call

I had the same issue (Windows 10 and SSL3 / TLS only… not System Default) with a legacy app targeting 4.7.2. My issue was that during the upgrade process over the years we never added in the targetFramework to the system.web > httpRuntime element (Note: it did exist on system.web > compilation element). Before taking … Read more

How to enable TLS 1.2 in Java 7

There are many suggestions but I found two of them most common. Re. JAVA_OPTS I first tried export JAVA_OPTS=”-Dhttps.protocols=SSLv3,TLSv1,TLSv1.1,TLSv1.2″ on command line before startup of program but it didn’t work for me. Re. constructor Then I added the following code in the startup class constructor and it worked for me. try { SSLContext ctx = … Read more

.Net Framework 4.6.1 not defaulting to TLS 1.2

I had a similar problem and this is what worked for me. open Powershell and check for supported protocols by using [Net.ServicePointManager]::SecurityProtocol Run the following 2 cmdlets to set .NET Framework strong cryptography registry keys: set strong cryptography on 64 bit .Net Framework (version 4 and above) Set-ItemProperty -Path ‘HKLM:\SOFTWARE\Wow6432Node\Microsoft\.NetFramework\v4.0.30319’ -Name ‘SchUseStrongCrypto’ -Value ‘1’ -Type … Read more

A fatal error occurred while creating a TLS client credential. The internal error state is 10013

Basically we had to enable TLS 1.2 for .NET 4.x. Making this registry changed worked for me, and stopped the event log filling up with the Schannel error. More information on the answer can be found here Linked Info Summary Enable TLS 1.2 at the system (SCHANNEL) level: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2] … Read more

Is that possible to send HttpWebRequest using TLS1.2 on .NET 4.0 framework

Yes, it supports it but you must explicitly set the TLS version on the ServicePointManager. Just have this code run anytime (in same app domain) before you make the call to Experian: System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12 Update see @iignatov ‘s answer for what you must do for framework v4.0. My code works with 4.5+

Chrome “Active content with certificate errors”

To clear this error without a restart: Open developer tools Go to the Application tab Clear storage Close and re-open tab Commenters have pointed out the following: you must close all tabs in all windows which are open to the same domain (including subdomains) you can uncheck “cookies” before clearing storage to preserve login information … Read more

TLS 1.2 in .NET Framework 4.0

If you are not able to add a property to system.net class library. Then, add in Global.asax file: ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072; //TLS 1.2 ServicePointManager.SecurityProtocol = (SecurityProtocolType)768; //TLS 1.1 And you can use it in a function, at the starting line: ServicePointManager.SecurityProtocol = (SecurityProtocolType)768 | (SecurityProtocolType)3072; And, it’s being useful for STRIPE payment gateway, which only … Read more

Update .NET web service to use TLS 1.2

We actually just upgraded a .NET web service to 4.6 to allow TLS 1.2. What Artem is saying were the first steps we’ve done. We recompiled the framework of the web service to 4.6 and we tried change the registry key to enable TLS 1.2, although this didn’t work: the connection was still in TLS … Read more

NSURLSession/NSURLConnection HTTP load failed on iOS 9

Found solution: In iOS9, ATS enforces best practices during network calls, including the use of HTTPS. From Apple documentation: ATS prevents accidental disclosure, provides secure default behavior, and is easy to adopt. You should adopt ATS as soon as possible, regardless of whether you’re creating a new app or updating an existing one. If you’re … Read more

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