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| From | Message | Posted by alberlie
uskidscompute.com
6/13/2006
01:55:03
Play online chess |  Subject: password safety and chess...
Message:
Hi,
did anyone ever think about how well chess notation serves as passwords? Plusses are:
- As it's no problem memorizing a chess main line for 6-10 moves (most here can do that), you can generate quite long passwords
- since "+" "0-0" "0-0-0" "2.)" all contain special characters, 1.Nf3 also has caps and lower letters, it's quite random and it's got numbers in it -- all requirements for good passwords.
minusses:
- If your adversary happens to know you're a chess freak he might be able to reprogramm his brute force attacking tool to try chess lines with higher priority. But you could get around this by simply starting you pw off with the first letters of some sentence (let's say: "I hope Paris Hilton finally get's arrested" would make "IhPHfga" and if you now append your Ruy main line, you're ok.
I ran a test at this site: https://passwortcheck.datenschutz.ch
for this pw: "1e4e52Nf3Nc63Bb5a64Ba4Nf650-0Be76Re10-07a4Bb78c3" That's a well known anti-marshall line in the Ruy Lopez.
The test says that my pw would need 3'199'181'570'129'864'390'646'397'960'825'739'929'488'950'949'692'361'864'750'159'866'764'428'019'507'592'369'520'534'109'716 tries on average to break, which would take approx. 202'890'764'214'222'754'353'525'999'545'011'411'053'332'759'366'588'144'644'226'272'625'851'599'410'679'374 years (with 500'000 tries/sec).
That's not too bad, is it? And I can recite that Ruy line even when drunk, asleep, etc. etc...
| Posted by ccmcacollister
uskidscompute.com
6/13/2006
04:16:22
Play online chess | sounds risky ...
Message:
Better add an auto-disconnect after two tries fail~! That should add a couple eons ... and throw in an ansi character just to be Safe !!
| Posted by far1ey
uskidscompute.com
6/13/2006
04:22:20
Play online chess | Nah
Message:
Who would ever guess a chess opening being used as a password? Thanks for that alberlie that's quite an idea...
———
Chess Notes — Here is a product of the World Chess Cup, a game of maneuver from the fourth round in which Peter Svidler, a chess veteran and winner of the Soviet Championship five times, subdues Arkadij Naiditsch of Germany. Games that start quietly inevitably result in noisy clashes. In this game Svidler as Black develops his pieces to the third rank, depending on ultimate counter play. It is interesting that he allows Bh6 against his King side, and simply ignores the cleric. White gets no advantage from this Bishop, which is later eliminated. The critical confrontation occurs after Svidler turns to the attack with 23 f5. Naiditsch responds passively by reconnoitering his Knight. He gives up ...
Posted by alberlie
uskidscompute.com
6/13/2006
05:23:09
Play online chess | craig...
Message:
is right - kinda.
It doesn't hurt to start any sequence off with "@" or any other non-keyboard character. But the point is rather that with passwords, safety comes with numbers (of characters). _IF_ those characters are random, that is. Therefore something like "h%9K." is about as safe as "Irandowntotheshopformilk" even though the latter is much longer. But since it is made up of words in correct english syntax, it yields only about as half as much security _per word_. Given that a password of 20+ completely random characters is considered safe by current technology standards, that would translate to a "sentence" of more 40 words as a password. That's quite a bit to type and to remember (Some Hamlet monologue comes to mind ;o) )
The point with a chess line is now, that it is very easy to remember for a chess player and (for such a one) (almost) always consisting of a full move. But "1.)d4Nf6" is already eight characters of (in itself) very random fashion - and nothing an attacker would likely have in his dictionary (which _would_ probably have the most common english vocabulary - thus the decreased security of the above sentence).
So even if you would have "1.)d4Nf6" as one "word" it would have a security that would approach that of the random string h%9K.". Now imagine using a basic chess puzzle (smothered mate) which is a 4-mover, and you'd end up with over 50 characters. If you now add your odd special character at the beginning and end with "IhPHfga", you'll have a _VERY_ save password, at least as safe as a 20 character random string but a lot easier to remember...
———
Children 1, Astronaut 0 — In the end, the astronaut could not outwit the children. Wednesday, Greg Chamitoff, an American astronaut, resigned a long-running correspondence chess game against a group of children from Stevenson Elementary School in Bellevue, Wash. They had started the game in September 2008 while Chamitoff was stationed aboard the International Space Station. The game had been the idea of the National Aeronautics and Space Administration. Officials at the agency had asked the United States Chess Federation about having Chamitoff play a game of chess against some of the federation’s members. Stevenson was chosen as an opponent because the school ...
Posted by ccmcacollister
uskidscompute.com
6/13/2006
07:45:16
Play online chess | Alberlie ...
Message:
I like the solution to Chess problem password idea. But I forgot to mention, you also need to add some 'landmines' on your computer; virus & worm files for them to download ... !?
Seems only fair, to me }B-)
[And I have 2450 adware pop-ups on a very sick P-1, you can have cheap ... ] :))
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London Chess Classic: Kramnik's lesson in positional play — McShane-Kramnik, London 2009. Black to play. With two rounds to go in the London Chess Classic, the Norwegian chess prodigy Magnus Carlsen looks set to win the tournament. Vladimir Kramnik, his main rival, is in second place. In this game from round three, Kramnik displayed his refined positional understanding. RB I've been following this tournament online, but I missed this particular game, and more's the pity because I can't find a good continuation for Black. Clearly Kramnik has the better game – the two centralised knights look very threatening – but how to convert Black's positional superiority into a winning position? 1...Nxd2 2 Nxd2 doesn't lead anywhere and ...
Posted by nottop
uskidscompute.com
6/13/2006
11:10:39
Play online chess | like this
Message:
I like this. I usually use nonsense passwords - hard to find but harder to remember. So I have to write them down. And as soon as I write them down - there they are.
But the fact that we're talking about it - could some hacker browsw these boards and decide to add some chess opening passwords to his database?
Could there be any hackers here at gameknot?
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Gelfand Wins World Chess Cup — Boris Gelfand of Israel is the 2009 World Cup champion. Gelfand won the title by beating Ruslan Ponomariov of Ukraine in a playoff on Monday. The first four games of the playoff were rapid games (25 minutes per player per game) and Gelfand took the lead by winning the second game. But Ponomariov, with his back to the wall, won the last rapid game to tie the match up again. The playoff then went to blitz chess (5 minutes per player per game) and Gelfand once again took the lead by beating Ponomariov in the first game when he managed to trap Ponomariov’s queen in 21 moves. Ponomariov rallied again, winning the second game. But Gelfand won the third and Ponomariov ...
Posted by alice02
uskidscompute.com
6/15/2006
04:06:28
Play online chess | prompt question
Message:
I like to have unexpected answers to the prompt questions e.g - what is your favourite make of car -Phar Lap (for those who dont know - a famous horse)
———
A tragic knight — The London Chess Classic, a fabulously organized eight-player elite tournament, shaped up as a confrontation between two great chess grandmasters, the top-rated Magnus Carlsen of Norway and the former world chess champion Vladimir Kramnik of Russia. By the luck of draw, they met in the first round, and Carlsen won. The Norwegian GM was still in a clear lead on Sunday with four points in five rounds, a full point ahead of Kramnik. U.S. chess champion Hikaru Nakamura drew four games and lost one. The tournament concludes Tuesday. The Carlsen-Kramnik duel looked like a perfectly played game by the Norwegian, who took advantage of Kramnik's stranded knight. "If one piece is ...
Posted by honololou
uskidscompute.com
6/20/2006
18:35:51
Play online chess | be careful Alice…
Message:
you are giving away the keys to your internet security.
| Posted by daverundle
uskidscompute.com
6/21/2006
00:50:48
Play online chess |
Message:
alberlie sounds like a good idea, not sure though that you should pick a password you can recite in your sleep, or when drunk!!!
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