tls1.2

Our ASP.NET 2.0 website processes credit card transactions via calls to Authorize.Net's API. Authorize has informed us that on a date certain, to be announced, our client must utilize TLS 1.2 protocol for API calls. Microsoft seemed to indicate that a solution is available in this 10-22-16 KB article: https://support.microsoft.com/en-us/help/3154517/support-for-tls-system-default-versions-included-in-the-.net-framework-2.0-sp2-on-windows-vista-sp2-and-server-2008-sp2 ...we have added the SslProtocolsExtensions enumeration that you can use as an option for setting TLS v1.2, TLS v1.1, as well as

We are starting to use Guzzle in PHP with code which calls a variety of different APIs, a few of which don't support TLSv1.2 and some of which require TLSv1.2. What's the best way to force Guzzle to use the most recent protocol available, except in cases where we know it won't be recognized? It is simple and easy. $client = new Client(); $guzzle = new GuzzleClient('https://www.yourweb.com', array( 'curl.options' => array( CURLOPT_SSLVERSION => CURL_SSLVERSION_TLSv1_2 ) )); $client->setClient($guzzle); ... In Guzzle 3.0+ (update as per @limos' comment): 'curl' => array( CURLOPT_SSLVERSION =>

So Apple requires TLS 1.2 with Forward Secrecy for URLs beginning iOS 9. Independent of the app, what's the best way to verify that a server meets all the requirements? nscurl just outright doesn't work - or I don't know how to use it. My output simply repeatedly says CFNetwork SSLHandshake failed, even though I know the server is compliant. TLSTool works to some extent but I cannot force the Forward Secrecy (FS) ciphers to be used. openssl can specify specific cipher for the client mode, but the version I have doesn't have FS ciphers. How do I upgrade openssl? What's the best way? So far I've

In trying to disable TLS 1.0, there are KitKat devices needing access to my API. I have tried overriding the default socket factory without success. I have tried converting to okhttp. Still not working. How do I get Android KitKat to connect to my API? I had the same issue on pre-lollipop devices. As I'm using Retrofit, here is the solution for OkHttp . Tls12SocketFactory.java : public class Tls12SocketFactory extends SSLSocketFactory { private static final String[] TLS_V12_ONLY = {"TLSv1.2"}; final SSLSocketFactory delegate; public Tls12SocketFactory(SSLSocketFactory base) { this.delegate =