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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...
———
Despite a New Top Player, an Old Champ Is a Winner — Like some professional sports, chess seems to be in a state of parity. It has not always been this way. Bobby Fischer’s decisive victory over Boris Spassky in the 1972 world chess championship match confirmed what many people assumed: that he had long been the best chess player in the world. After Anatoly Karpov became champion in 1975, some questioned his worthiness because Fischer had not defended the title. But, over the next decade, Karpov proved himself by regularly beating his rivals and winning almost every chess match and tournament he played. Karpov’s successor, Garry Kasparov, was even better. After winning the title in 1985, Kasparov ...
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...
———
Vladimir Kramnik regains top form — Former world chess champion Vladimir Kramnik of Russia won the Tal Memorial in Moscow by scoring an undefeated 6-3. The round robin featured 10 of the world's top 13 chess stars. Kramnik, in his prime at age 34, seems fully recovered from losing the 2008 world championship match to Viswanathan Anand of India. He also won his previous elite chess tournament in Dortmund, Germany, in July. In Moscow, Kramnik reached "+3" after six rounds, and only Anand, who was "+2," remained close. However, Anand lost in the last round to Levon Aronian of Armenia and fell to a tie for fourth place with Aronian at 5-4. Magnus Carlsen of Norway and Vassily Ivanchuk ...
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 ... ] :))
———
Defence, part 1: How does Black fight back? — Svidler-Jobava, European team chess championship, 2009. Black, to move, is under attack. How does he save himself? Our theme over the next few columns is defence – hardly a glamorous subject, and little discussed, but of course vital in chess. White has just played his knight into the middle of the board, heading towards Black's king, and the rook and the queen are also in powerful attacking positions. What does Black have in his favour? Not much. But he does have a material advantage, rook for knight and an extra pawn. This gives him a little hope: if Black survives the attack, he could find himself with a winning position. So let's concentrate on survival. First we ...
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?
———
Kramnik triumphant in Moscow — Former world chess champion Vladimir Kramnik won the flu-stricken Tal Memorial on Saturday. Playing more deliberately and sharply, the Russian grandmaster reinvented himself. He did not mind dwelling in complications and kept his cool in difficult situations. He withstood the last-round charge of Ukraine's Vassily Ivanchuk, last year's winner of the same chess event. Magnus Carlsen sneaked in a tie for second place by winning the last two games. The Norwegian grandmaster gained enough rating points to move into the world's top spot. The world chess champion Vishy Anand of India had a chance to tie for first with Kramnik, but lost in the last round with the white pieces to ...
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)
———
French chess star wins world junior — Maxime Vachier-Lagrave of France edged Sergei Zhigalko of Belarus to win the World Junior Chess Championship in Puerto Madryn, Argentina. Each scored an undefeated 10 1/2 -2 1/2 in the 82-player tournament, the most prestigious age-limited chess event. Only players born in 1989 or later were eligible. Vachier-Lagrave, 19, earned the chess grandmaster title in 2005 and won the French championship in 2007. He entered the tournament as the top seed with a rating of 2718 (23rd in the world), but his triumph was hardly guaranteed in an upset-filled melee that included 16 other grandmasters, including six rated above 2600. Zhigalko, 20, was seeded third ...
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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