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DescriptionNikos Mavrogiannopoulos
2016-09-05 11:35:20 UTC
The CHACHA20-POLY1305 algorithm is specified in rfc7539, and is being adopted by TLS 1.3 and IPSec (rfc7634). It is becoming the de-facto backup algorithm of AES-GCM (implemented in all major browsers), and is being included into all major crypto libraries.
We should include chacha20-poly1305 in RHEL7 when possible.
chacha20-poly1305 is not present in openssl 1.0.2 branch. Rebasing to 1.1.0 is impossible and that means the chacha20-poly1305 support would have to be backported. It would be severally non-trivial and I do not think this is feasible for 7.4. We might consider the backport for future RHEL-7 update if there is strong customer demand.