get_lengths (Net::SSH::Transport::CipherFactory)

        # File lib/net/ssh/transport/cipher_factory.rb, line 66
    66:     def self.get_lengths(name)
    67:       ossl_name = SSH_TO_OSSL[name]
    68:       return [0, 0] if ossl_name.nil? || ossl_name == "none"
    69:
    70:       cipher = OpenSSL::Cipher::Cipher.new(ossl_name)
    71:       key_len = KEY_LEN_OVERRIDE[name] || cipher.key_len
    72:       cipher.key_len = key_len
    73:
    74:       return [key_len, ossl_name=="rc4" ? 8 : cipher.block_size]
    75:     end