On 6/17/2014 7:41 PM, Celejar wrote: > On Sat, 14 Jun 2014 22:32:16 -0400 > Jerry Stuckle <jstuc...@attglobal.net> wrote: > >> On 6/14/2014 2:06 PM, Patrick Chkoreff wrote: > > ... > >>> Here's a way to generate a *truly* random password that is *also* memorable: >>> >>> http://diceware.com >>> >>> Instead of using your computer to generate allegedly random bits, you >>> use five six-sided dice to generate truly random bits. >>> >>> >>> -- Patrick >>> >>> >> >> Not good at all. With 5 dice, you have 6^5 or 7,776 possible >> combinations. Just figuring 5 upper and lower case characters and >> numbers, you have 62^5 or 916,132,832 (more if you add special >> characters). Even a 3 alphanumeric (upper and lower) case character >> password has 238,328 possible combinations. >> >> I wouldn't even consider this a weak password. It's much worse than >> that. The fact you can have combinations of words doesn't add that much >> security, especially if someone thinks you're using the diceware list. > > I think there's a miscommunication here; the diceware instructions are > to use five dice *per word*, and recommend either five or six words as > a minimum: > > http://world.std.com/~reinhold/diceware.html > http://world.std.com/~reinhold/dicewarefaq.html#howlong > > Celejar > >
Yes, I understand. But a roll of five dice is less secure than a three character alphanumeric (upper and lower case) password (7,776 vs. 238,328 combinations). A 6 word password would have approximately the same security as a 13 character alphanumeric password. But then you have to type 30-40 characters or so to enter the diceware password; very few (if any) sites will accept a password that long. The longest I know of is around 20 characters (my bank). That severely limits the number of combinations you can get with dice. Jerry -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/53a0f2d1.8050...@attglobal.net
