More info from upstream: Press release - https://www.redhat.com/about/news/press-archive/2013/11/red-hat-launches-latest-version-of-red-hat-enterprise-linux-6

More info from upstream: Press release - https://www.redhat.com/about/news/press-archive/2013/11/red-hat-launches-latest-version-of-red-hat-enterprise-linux-6 https://www.redhat.com/about/news/press-archive/2013/11/red-... Release notes - https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html-single/6.5_Release_Notes/index.html https://access.redhat.com/site/documentation/en-US/Red_Hat_E... Technical notes - https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html-single/6.5_Technical_Notes/index.html https://access.redhat.com/site/documentation/en-US/Red_Hat_E... > ECDSA Support in OpenSSL: Elliptic Curve Digital Signature Algorithm (ECDSA) is a variant of the Digital Signature Algorithm (DSA) which uses Elliptic Curve Cryptography (ECC). Note that only the nistp256 and nistp384 curves are supported. > ECDHE Support in OpenSSL: Ephemeral Elliptic Curve Diffie-Hellman (ECDHE) is supported, which allows for Perfect Forward Secrecy with much lower computational requirements.