040000 tree 6abe3f4d7342fd167d49d2eb9e4cd37abf4b78bf	crypt
040000 tree 2890df7e853a936dd430ae98911f90029ae819ad	frame_protector
040000 tree bd52076444cf868efc63cae434263cdd61d2ddd2	handshaker
040000 tree af148a3f2e6257aa1b74f82c6e11f93feb31e5d4	zero_copy_frame_protector