id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	launchpad_bug
607	DIR2:IMM	zooko	warner	"Directories are currently stored in {{{SSK}}} files.  They were designed so that directories could be easily stored in different types of files, so it shouldn't be hard for someone to implement {{{DIR2:CHK}}} files.  These would have nice properties, especially for backup applications:

 * It would be nice to know that your old backed-up directory is immutable.
 * It would allow convergence of backed-up directories (note that front-end backup tools such as Brian's backupdb and Shawn's backup tool might figure this out and converge old directories for you, but doing it by converging CHK's on upload might work better for some cases, including the case that you aren't using backupdb or Shawn's tool).
 * It would be faster to create (currently SSKs require an RSA key-pair generation on creation, which is expensive).
"	defect	closed	major	1.6.0	code-dirnodes	1.2.0	fixed	newcaps news-done