List supported SSL/TLS versions for a specific OpenSSL build
I have, for example, OpenSSL version 1.0.0o
on my Linux system, and I want to know which SSL/TLS
versions are supported with this build.
Is there a shell command to accomplish this?
Solution 1:
Use this
openssl ciphers -v | awk '{print $2}' | sort | uniq
Solution 2:
You can not check for version support via command line. Best option would be checking OpenSSL changelog.
Openssl versions till 1.0.0h supports SSLv2, SSLv3 and TLSv1.0. From Openssl 1.0.1 onward support for TLSv1.1 and TLSv1.2 is added.