Michael wrote: > On Tuesday, 19 September 2023 12:13:40 BST Dale wrote: >> Hmmmm, >> >> For some reason, I didn't get Michael's email. I see him being quoted >> but don't have his original. I wonder what is up with that. O-o > Assuming you will receive this message, have a look here: > > https://marc.info/?l=gentoo-user&m=169511184714476&w=2 > > >> Rich Freeman wrote: >>> On Tue, Sep 19, 2023 at 4:26 AM Michael <confabul...@kintzios.com> wrote: >>>> On Tuesday, 19 September 2023 06:36:13 BST Dale wrote: >>>>> Howdy, >>>> A strong >>>> password, like a strong door lock, buys you time. Hence the general >>>> recommendation to change your passwords frequently. >>> While that can help on websites, it is of no use for full disk >>> encryption passwords - at least not without jumping through some big >>> hoops. >>> >>> In order to crack your LUKS password somebody obviously needs to be >>> able to read the encrypted contents of your disk. They cannot begin >>> cracking it until they have a copy of the LUKS headers. However, once >>> they do have it, they can make a copy and crack it at their leisure. >>> If they manage to crack it, then it will give them the volume key. At >>> that point if they were able to make a full copy of your disk they can >>> read whatever was on it at the time. If they can make a fresh copy of >>> your disk then changing the passphrase will not change the volume key, >>> and so they'll be able to read what is currently on your disk. >>> >>> Changing the volume key would defeat this, but requires running >>> cryptsetup-reencrypt which will take considerable time/CPU, though it >>> sounds like it can be done online. >> Let's jump into a hypothetical here. Let's say I'm a nasty terrorist or >> some other really evil dude. Let's say I have passwords are that really >> good. Let's say around 20 characters and a really nice mix of >> characters. If some gov't agency got my hard drive, how long would it >> take for them to crack it? > A couple of minutes? > > https://xkcd.com/538/ > > :-)
I did get this one. I also got the other message, I think at the same time. It sure did arrive late tho. I have mine set up to view as threads. This thread looked odd until it got the previous message. Must have got hung up somewhere. Maybe a server somewhere had to reboot and it took a while. ROFL I like the cartoon. In some countries, that would likely be a first option. :/ Dale :-) :-)
