PHP Language - password generation

Author

password generation

Mark D Smith

2005-06-10, 8:55 am

Hi

i am using a pear addition Text_Password

$pass = Text_Password::create($length = 8, $type = 'unpronounceable',$chars
= '');

problem is $pass contains some chars that are not A-Za-z 0-9, i have seen
underscores & accented chars returned.
is there a better way to generate an 8 char password for users?. I will be
using crypt to put in mysql database.

Mark

bebbet

2005-06-10, 3:56 pm

function createpass($chars) {
$array ("","0","1" etc.....
while ($i != ($chars+1)) {
$pass .= rand(1,36);
$i++;
return $pass;
}
}

then use it like this:

createpass([length chars]);

--
bebbet

Geoff Berrow

2005-06-10, 3:56 pm

I noticed that Message-ID:
<33c3f$42a988df$d52e9932$13341@news.chello.nl> from bebbet contained the
following:

>function createpass($chars) {
> $array ("","0","1" etc.....
> while ($i != ($chars+1)) {
> $pass .= rand(1,36);
> $i++;
> return $pass;
> }
>}
>
>then use it like this:
>
>createpass([length chars]);

I was asked to write a random password generator that created up to 2000
memorable passwords. I used an array of syllables
www.ckdog.co.uk/dev/randpass.php

Of course you have to be a bit careful you don't use syllables that can
be combined in - ah - unfortunate combinations.

On the other hand you might, just for fun, deliberately do that. I'd
probably name such a file randpasrude dot php - if it existed. ;-)

--
Geoff Berrow 0110001001101100010000000110
0011011010110110010001101111011001110010
11
1001100011011011110010111001110101011010
11

Geoff Berrow

2005-06-10, 8:55 pm

I noticed that Message-ID: <u26ja1hqj7jjcm7s5t4vbjij91itqcdvam@4ax.com>
from Geoff Berrow contained the following:

>
>On the other hand you might, just for fun, deliberately do that. I'd
>probably name such a file randpasrude dot php - if it existed. ;-)
or even randpassrude.php

--
Geoff Berrow 0110001001101100010000000110
0011011010110110010001101111011001110010
11
1001100011011011110010111001110101011010
11

Geoff Berrow

2005-06-10, 8:55 pm

I noticed that Message-ID: <u26ja1hqj7jjcm7s5t4vbjij91itqcdvam@4ax.com>
from Geoff Berrow contained the following:

>I was asked to write a random password generator that created up to 2000
>memorable passwords. I used an array of syllables
>www.ckdog.co.uk/dev/randpass.php

Grrr. It's been one of those days...
http://www.ckdog.co.uk/php/test/randpass.php
--
Geoff Berrow 0110001001101100010000000110
0011011010110110010001101111011001110010
11
1001100011011011110010111001110101011010
11

Mark D Smith

2005-06-11, 8:55 am

"bebbet" <bebbet@bebbet.nl> wrote in message
news:33c3f$42a988df$d52e9932$13341@news.chello.nl...
> function createpass($chars) {
> $array ("","0","1" etc.....
> while ($i != ($chars+1)) {
> $pass .= rand(1,36);
> $i++;
> return $pass;
> }
> }
>
> then use it like this:
>
> createpass([length chars]);
>
> --
> bebbet
>
>
Hi

a little buggy!

i added

$chrs = array("","A","B",

and fixed the while loop

while ($i != ($chars+1)) {
$pass .= $chrs[rand(1,36)];
$i++;
}
return $pass;
}

now works just fine.

Mark

Xenophaw

2005-06-11, 3:55 pm

"Mark D Smith" <usenet@NOSPAM.obantec.net> wrote:
> Hi
>
> i am using a pear addition Text_Password
>
> $pass = Text_Password::create($length = 8, $type =
> 'unpronounceable',$chars
> = '');
>
> problem is $pass contains some chars that are not A-Za-z 0-9, i have seen
> underscores & accented chars returned.
> is there a better way to generate an 8 char password for users?. I will be
> using crypt to put in mysql database.
>
> Mark
>

If the lengh is not a problem, I would translate the result from
Text_Password::create() like this base_convert(bin2hex($pass), 16, 36).
In this way you would obtain just characters in a-z 0-9, but the password
lenght would become 12 characters. As you already get an unpronunciable
password, for the user would not be bothering to have to remember 4
characters more.

I hope this will help you.

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