Have you ever used the values for e or pi as a password?

For the discussion of math. Duh.

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Have you ever used a mathematical constant as a password/combination.

Yes
38
38%
No
62
62%
 
Total votes: 100

Aradae
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Have you ever used the values for e or pi as a password?

Postby Aradae » Tue Nov 27, 2007 4:31 am UTC

How many of you have done this at least once, whether it be a password or combination.

The list is not restricted to e or pi; it could be the golden ratio, or any other number that can be expressed mathematically.

I once had epi to five digits as part of the password for my WoW account.
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Re: Have you ever used the values for e or pi as a password?

Postby gmalivuk » Tue Nov 27, 2007 4:34 am UTC

Yes. I have used digits of e for PINs and passcodes before. 3142718 is what I use for something. And in a conscious effort to memorize more digits of pi, I went through a period where every week or so I changed my university password to include the next ten digits of pi (between some other things, so that the people I told about it weren't going to be able to go read my email or whatever).
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Re: Have you ever used the values for e or pi as a password?

Postby andqso » Tue Nov 27, 2007 4:40 am UTC

I have been known to use the square root of two.

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Re: Have you ever used the values for e or pi as a password?

Postby b hythloday » Tue Nov 27, 2007 4:41 am UTC

For my computer I once used the first 37 digits of pi as a password

it was a bitch to type in though

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Re: Have you ever used the values for e or pi as a password?

Postby Aradae » Tue Nov 27, 2007 4:42 am UTC

oh, and I have the first 10 primes as a password for something.
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Re: Have you ever used the values for e or pi as a password?

Postby ikerous » Tue Nov 27, 2007 5:21 am UTC

Heh, kinda funny. My password for this very forum is the first n digits of pie.

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Re: Have you ever used the values for e or pi as a password?

Postby TomBot » Tue Nov 27, 2007 5:23 am UTC

ikerous wrote:Heh, kinda funny. My password for this very forum is the first n digits of pie.

Not for long! :-)

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Re: Have you ever used the values for e or pi as a password?

Postby Cosmologicon » Tue Nov 27, 2007 6:34 am UTC

Wow, I can understand using it for something like an ATM PIN, but this strikes me as a horribly insecure password; I'm surprised that many people use something like this. Although I admit I haven't always been so careful: one of my early passwords was HHeLiBeB.

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Re: Have you ever used the values for e or pi as a password?

Postby foxtwofoxtwo » Tue Nov 27, 2007 6:48 am UTC

I used a passcode put through a 64 bit hex encryption as a password, in fact, I still do.

Actually, I use phi as a password sometimes.

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Re: Have you ever used the values for e or pi as a password?

Postby Torn Apart By Dingos » Tue Nov 27, 2007 11:57 am UTC

No, but I have used my computer's megahurtz frequency in my password.

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Re: Have you ever used the values for e or pi as a password?

Postby Anpheus » Tue Nov 27, 2007 12:03 pm UTC

I use 4*e^3 + 3*e^2 + 2*e^1 + e^0 in base e for my luggage (reversed in order to be obscure!)

I've also been known to use some physical constants as expressed in planck units.


And in all seriousness, my password is an alphanumeric string over thirty characters long. Rainbow table that, motherfucker ~_~
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Re: Have you ever used the values for e or pi as a password?

Postby hyperion » Tue Nov 27, 2007 1:59 pm UTC

I've never used e or pi, but I have used fibonacci numbers (7-8 digit ones) and rows of pascal's triangle.
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Re: Have you ever used the values for e or pi as a password?

Postby Qoppa » Tue Nov 27, 2007 5:16 pm UTC

Using e or pi for a password is way too irrational for my liking.

Code: Select all

_=0,w=-1,(*t)(int,int);a()??<char*p="[gd\
~/d~/\\b\x7F\177l*~/~djal{x}h!\005h";(++w
<033)?(putchar((*t)(w??(p:>,w?_:0XD)),a()
):0;%>O(x,l)??<_='['/7;{return!(x%(_-11))
?x??'l:x^(1+ ++l);}??>main(){t=&O;w=a();}

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Re: Have you ever used the values for e or pi as a password?

Postby Aradae » Tue Nov 27, 2007 5:24 pm UTC

pun intended?
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Re: Have you ever used the values for e or pi as a password?

Postby Qoppa » Tue Nov 27, 2007 5:28 pm UTC

Absolutely.

Code: Select all

_=0,w=-1,(*t)(int,int);a()??<char*p="[gd\
~/d~/\\b\x7F\177l*~/~djal{x}h!\005h";(++w
<033)?(putchar((*t)(w??(p:>,w?_:0XD)),a()
):0;%>O(x,l)??<_='['/7;{return!(x%(_-11))
?x??'l:x^(1+ ++l);}??>main(){t=&O;w=a();}

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Re: Have you ever used the values for e or pi as a password?

Postby Macbi » Tue Nov 27, 2007 6:43 pm UTC

Anpheus wrote:I use 4*e^3 + 3*e^2 + 2*e^1 + e^0 in base e for my luggage (reversed in order to be obscure!)

I've also been known to use some physical constants as expressed in planck units.


And in all seriousness, my password is an alphanumeric string over thirty characters long. Rainbow table that, motherfucker ~_~

:D Loved all of that post.

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Re: Have you ever used the values for e or pi as a password?

Postby Nexus_1101 » Tue Nov 27, 2007 6:49 pm UTC

Mine is a st of random number letters and symbols for every password but i change the last letter+number for diffrent things.
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Re: Have you ever used the values for e or pi as a password?

Postby Govalant » Tue Nov 27, 2007 7:05 pm UTC

I wanted to, since I like to say what my password is about, it wouldn't last anything.

For example, my regular password is my DNI (Something like a social security number, I think) followed by a date.
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Re: Have you ever used the values for e or pi as a password?

Postby Nimz » Wed Nov 28, 2007 2:54 am UTC

Strictly speaking, every password that contains a numeral has a mathematical constant in it (as opposed to a variable), at least for the continuous portions of the password(time) function. Since I have had passwords that contain numerals, I vote yes.
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Re: Have you ever used the values for e or pi as a password?

Postby Aradae » Wed Nov 28, 2007 3:03 am UTC

Nimz wrote:Strictly speaking, every password that contains a numeral has a mathematical constant in it (as opposed to a variable), at least for the continuous portions of the password(time) function. Since I have had passwords that contain numerals, I vote yes.


But you obviously know what I'm trying to imply.
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Re: Have you ever used the values for e or pi as a password?

Postby ACF » Thu Nov 29, 2007 11:08 pm UTC

One time it was something like 3x14=42, which cleverly combines two very important constants.

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Re: Have you ever used the values for e or pi as a password?

Postby Elenion » Thu Nov 29, 2007 11:24 pm UTC

haha no, you guys are total nerds ^^
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Re: Have you ever used the values for e or pi as a password?

Postby i like pi » Thu Nov 29, 2007 11:31 pm UTC

obviously a phishing
Or something to that effect. Hell, I don't know.

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Re: Have you ever used the values for e or pi as a password?

Postby Quantum Potatoid » Fri Nov 30, 2007 1:08 am UTC

Hey! But we ARE geeks and nerds, and proud to be! :)
I have to say I have used math to make passwords! You don't have to worry about the normal people getting into your account either! :wink:

ACF wrote:One time it was something like 3x14=42, which cleverly combines two very important constants.

WIN
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Re: Have you ever used the values for e or pi as a password?

Postby Yakk » Fri Nov 30, 2007 5:15 am UTC

I distinguish between high and low security passwords.

A low security password is something that I don't even trust the admins to keep secure.

A high security password is one that guards money or other high value information.

I've used some ridiculously easy to crack low security passwords. A friend of mine even consciously uses "password" as his low security password: I'm not quite that bad.

On xkcd, however, out of principle, my password is a ridiculous construct. I mean, this is xkcd...
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Re: Have you ever used the values for e or pi as a password?

Postby Qoose » Fri Nov 30, 2007 5:16 am UTC

My password has contained pi and binary, sandwiched between other characters of course.

There are also ^ / and (), one for security, and second because when worked out, my password means certain doom for in a certain situation.

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Re: Have you ever used the values for e or pi as a password?

Postby Quan » Fri Nov 30, 2007 7:57 am UTC

When I need a 4 digit pin I find that 1729 is such a wonderful number to use (smallest number expressible as the sum of 2 positive cubes 2 different ways).
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Re: Have you ever used the values for e or pi as a password?

Postby dazomby » Fri Nov 30, 2007 8:22 am UTC

No pi for me.
Not hungry.

I have a non-dictionary word with added numbers and semi-random caps, e.g. Plu17PpA.
Pluppa is a word and 17 is a random number. According to one of my math professors it is the most random number there is.

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Re: Have you ever used the values for e or pi as a password?

Postby Anpheus » Fri Nov 30, 2007 9:26 am UTC

My former PIN, now that I think about it, was a particular series of bits that I found easy to remember. That is, it made a binary sequence like 011011 or whatever else you want to imagine it to be.
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Re: Have you ever used the values for e or pi as a password?

Postby Zohar » Fri Nov 30, 2007 11:49 am UTC

This thread makes me want to switch my password format (which has been the same for quite a while). But how to remember everything?
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Re: Have you ever used the values for e or pi as a password?

Postby b.i.o » Fri Nov 30, 2007 4:04 pm UTC

Zohar wrote:This thread makes me want to switch my password format (which has been the same for quite a while). But how to remember everything?


Make yourself need to type it very regularly and you won't have any problems. For example, my current secure password (which isn't really all that secure...I've had it for a while and need to change it) I memorized because I was playing a game online and I needed to type it in at least once a day.

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Re: Have you ever used the values for e or pi as a password?

Postby Cosmologicon » Fri Nov 30, 2007 5:34 pm UTC

You could just write it down. If it's a "high security" password, keep it in your wallet.

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Re: Have you ever used the values for e or pi as a password?

Postby gmalivuk » Fri Nov 30, 2007 5:58 pm UTC

Yakk wrote:I distinguish between high and low security passwords.

A low security password is something that I don't even trust the admins to keep secure.

A high security password is one that guards money or other high value information.

Yeah, me too. Though some of my high security passwords probably aren't all that secure, since I use them for too many other things. When I register for a new site, though, I make sure to start out with one of the low security variations, just in case the site emails the password to me in cleartext. It got very annoying very quickly to see higher-security letter-and-number mishmashes just sitting right there in my Inbox. So now I often register with something as simple as "tempass" or somesuch.
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Re: Have you ever used the values for e or pi as a password?

Postby Pathway » Fri Nov 30, 2007 8:27 pm UTC

TomBot wrote:
ikerous wrote:Heh, kinda funny. My password for this very forum is the first n digits of pie.

Not for long! :-)


It reads "pie" which equals pi * e. Since for completeness' sake you also have to check pi, that makes a lot more combinations to check. It's secure.
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Re: Have you ever used the values for e or pi as a password?

Postby Pathway » Fri Nov 30, 2007 8:29 pm UTC

Quan wrote:When I need a 4 digit pin I find that 1729 is such a wonderful number to use (smallest number expressible as the sum of 2 positive cubes 2 different ways).


Okay, now that's just borderline asking for it.

EVERY self-respecting geek likes 1729. It's my favorite 4-digit number. I never use it.

9271, however, is COMPLETELY secure.
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Re: Have you ever used the values for e or pi as a password?

Postby Anpheus » Fri Nov 30, 2007 10:10 pm UTC

Zohar wrote:This thread makes me want to switch my password format (which has been the same for quite a while). But how to remember everything?


There's a really simple program called Keepass that will help you manage your passwords.
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Re: Have you ever used the values for e or pi as a password?

Postby Lleu » Sat Dec 01, 2007 12:21 am UTC

Pathway wrote:
TomBot wrote:
ikerous wrote:Heh, kinda funny. My password for this very forum is the first n digits of pie.

Not for long! :-)


It reads "pie" which equals pi * e. Since for completeness' sake you also have to check pi, that makes a lot more combinations to check. It's secure.


All my passwords used to be based on pie. Now, I just pull out some random number from my calculator.

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Re: Have you ever used the values for e or pi as a password?

Postby adlaiff6 » Sat Dec 01, 2007 7:17 pm UTC

I've used some digits of e before, but certainly not the first ones. I've also used coefficients in C[x], but only on systems I've administered.
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Re: Have you ever used the values for e or pi as a password?

Postby Nimz » Mon Dec 03, 2007 9:14 am UTC

Pathway wrote:
Quan wrote:When I need a 4 digit pin I find that 1729 is such a wonderful number to use (smallest number expressible as the sum of 2 positive cubes 2 different ways).


Okay, now that's just borderline asking for it.

EVERY self-respecting geek likes 1729. It's my favorite 4-digit number. I never use it.

9271, however, is COMPLETELY secure.

Variations on the power themed PIN could include 1024, 1296, 2048, 2187, 2401, 3125, 4096, 6561, 7776, and 8192. And that doesn't include the obviously more secure ones like 1042, 1656, 2918, 4201, 5213, 6777, 6904, 6921, 7812, and 8402. I think 2513 might be a good one, too. Just have to remember it's the plural of octopus (octo-PI) without the decimal point.

[Edit] This is slightly off topic, but I refer to the above for on-topicness.
gmalivuk wrote:Yes. I have used digits of e for PINs and passcodes before. 3142718 is what I use for something. And in a conscious effort to memorize more digits of pi, I went through a period where every week or so I changed my university password to include the next ten digits of pi (between some other things, so that the people I told about it weren't going to be able to go read my email or whatever).

I might do something somewhat similar to this soon. The number of digits of pi that I have memorised almost coincides with the number of pushups I can do at once. In an attempt to level up my STR stat and memorise more digits of pi at the same time, I'm going to count the number of pushups I do by rattling off digits of pi.
LOWA

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Re: Have you ever used the values for e or pi as a password?

Postby b hythloday » Thu Dec 06, 2007 3:50 am UTC

except that octopus isn't of latin derivation (it comes from the greek) so the plural would be octopodes, not octopi


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