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KB Article #176595

What versions of TLS does the API Gateway support?

Problem


* Which versions of TLS are supported by the API Gateway?

Resolution


-- The answer to this depends on the branch of OpenSSL embedded in the gateway.  API Gateway versions prior to 7.3 use some version of the OpenSSL 0.9.8 branch, which only supports TLS 1.0.  Starting with version 7.3, we upgraded to the OpenSSL 1.0.1 branch which supports TLS 1.0, 1.1 and 1.2.  Customers wishing to use newer TLS versions in their gateway must upgrade to 7.3 or higher.