1master_secret,hex,"0102030405060708090a0b0c0d0e0f10" 2master_salt,hex,"9e7ca92223786340" 3sender_id,hex,"" 4recipient_id,hex,"01" 5replay_window,integer,30 6aead_alg,integer,10 7hkdf_alg,integer,-10 8ssn_freq,integer,4 9 10break_recipient_key,bool,true 11