.Net

You must be using 4.0 or above.

If you're using the SDK, please get the latest version from nuget: https://www.nuget.org/packages/OneFlowSDK/

In 4.0 or 4.5 if not using the sdk, you need to manualy set the protocol.

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

PHP

You need to ensure OpenSSL version of at least 1.0.1 is installed.

if using the sdk update to the latest version. https://github.com/Oneflow/oneflow-sdk-php

You can check if PHP will work with the following script:

<?php

echo "\n";
echo "PHP VERSION: " . phpversion() . "\n";
echo "OPEN SSL VERSION: " . OPENSSL_VERSION_TEXT. "\n";

$params = array(
    'ssl' => array(
        'ciphers' => 'ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:DH-DSS-AES256-GCM-SHA384:DHE-DSS-AES256-GCM-SHA384:DH-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA256:DH-RSA-AES256-SHA256:DH-DSS-AES256-SHA256:ECDH-RSA-AES256-GCM-SHA384:ECDH-ECDSA-AES256-GCM-SHA384:ECDH-RSA-AES256-SHA384:ECDH-ECDSA-AES256-SHA384:AES256-GCM-SHA384:AES256-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:DH-DSS-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:DH-RSA-AES128-GCM-SHA256:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES128-SHA256:DHE-DSS-AES128-SHA256:DH-RSA-AES128-SHA256:DH-DSS-AES128-SHA256:ECDH-RSA-AES128-GCM-SHA256:ECDH-ECDSA-AES128-GCM-SHA256:ECDH-RSA-AES128-SHA256:ECDH-ECDSA-AES128-SHA256:AES128-GCM-SHA256:AES128-SHA256'
    )
);

$context = stream_context_create($params);
$fp = fopen('https://www.howsmyssl.com/a/check', 'rb', false, $context);
if (!$fp)   {
//          print_r($http_response_header);
    throw new Exception("Problem creating stream from $url, \n\t".implode("\n\t", error_get_last()));
}

$response = stream_get_contents($fp);
if ($response === false)    throw new Exception("Problem reading data from $url, $php_errormsg");

$json = json_decode($response);

echo "You are using TLS version: " . $json->tls_version . "\n";
echo "\n";

You should see TLS 1.2 and OpenSSL version of at least 1.0.1

Node.js

Node uses OpenSSL. TLSv1.2 requires OpenSSL 1.0.1c or higher.

You can check to see if TLS1.2 is supported in your version of node by running the following:

$ node -e "var https = require('https'); https.get('https://www.howsmyssl.com/a/check', function(res){ console.log(res.statusCode) });"

You should see a 200 which indicates yes.

Ruby

Ruby 2.0.0 or above is required to use the TLSv1.2 capability of the system supplied OpenSSL. OpenSSL 1.0.1c is the first version that supplies TLSv1.2. That is, both Ruby > 2.0.0 and OpenSSL > 1.0.1c are required. Run bundle update to update your dependencies.

Python

Python uses the system supplied OpenSSL. TLSv1.2 requires OpenSSL 1.0.1c or higher.

Java

• version 5: Not supported, you will need to upgrade
• version 6 + 7: TLSv1.2 must be enable explicitly, can set via: http://docs.oracle.com/javase/7/docs/api/javax/net/ssl/SSLContext.html
• version 8: TLSv1.2 is the default