Test TLS 1.2: A Comprehensive Guide to Ensuring Secure Communication

As the latest version of Transport Layer Security (TLS), TLS 1.3 has taken center stage in ensuring secure communication between computers on the Internet. However, understanding the significance and importance of testing for TLS 1.2 compliance is crucial, especially with the impending end-of-support for older versions like TLS 1.0 and 1.1.

What is TLS?

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TLS is an acronym for Transport Layer Security, a cryptographic protocol designed to provide secure communication between two endpoints over a network, such as the Internet. It's essential to test for TLS compliance to ensure that your systems are equipped to handle modern security standards.

Testing for TLS 1.2 Compliance

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To test your system's TLS 1.2 compliance, you can use the popular command-line tool, CURL. Here are the steps:

### Testing with Force TLS 1.2

You can force CURL to use TLS 1.2 by adding the following flags: `-k -tlsv1.2 -tls-max 1.2`. This will allow you to test your system's ability to establish a connection using TLS 1.2.

```

curl -k -tlsv1.2 -tls-max 1.2

```

### Testing Default CURL TLS Choice

If you want to test the default TLS version used by CURL, simply run the following command:

```

curl -k

```

### Verifying Success and Failure

When testing for TLS 1.2 compliance, you can expect one of two outcomes: success or failure.

* A successful connection will return a message indicating that the endpoint is connected successfully with TLS 1.2.

* An unsuccessful connection will result in an error message, such as OpenSSL SSL_connect: SSL_ERROR_SYSCALL.

### Impact on MessageMedia APIs

It's essential to note that if your systems do not support TLS 1.2 or higher, it may have a significant impact on your use of the MessageMedia REST and/or SOAP API. As of August, we are ending support for TLS 1.0 and 1.1.

In conclusion, testing for TLS 1.2 compliance is crucial to ensure secure communication between systems. By following these simple steps using CURL, you can verify that your systems are equipped to handle modern security standards. Remember, it's essential to prioritize security and stay up-to-date with the latest developments in TLS protocol versions to maintain a robust and secure infrastructure.

Test tls 1.2