id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	launchpad_bug
3230	Consider switching from AES CTR to AES XTS	exarkun		"After discussion with #cryptography-dev about random access AES CTR support in the `cryptography` library, it sounds like a better move would be for Tahoe-LAFS to switch this primitive to AES XTS instead.  AES XTS is designed with random access in mind.

Obviously there are more factors to consider than *just* ease of random access.  The outcome of this ticket should be an enumeration and consideration of all such factors along with a decision about whether they indicate sticking with AES CTR or switching to AES XTS.
"	defect	new	normal	undecided	code	n/a