require 'net/ssh/transport/hmac/abstract' module Net::SSH::Transport::HMAC # The SHA-512 Encrypt-Then-Mac HMAC algorithm. This has a mac and # key length of 64, and uses the SHA-512 digest algorithm. class SHA2_512_Etm < Abstract etm true mac_length 64 key_length 64 digest_class OpenSSL::Digest::SHA512 end end