Re[2]: FN-FORUM PHP/Perl Crypt()

date posted 10th January 2003 18:16

Already tried that one, no luck.

-- Richard
http://www.rwatt.co.uk

Friday, January 10, 2003, 5:56:06 PM, you wrote:
---------------------------------------
GH> Hi Richard,

GH> Have you read the user notes at:

GH> http://www.php.net/manual/en/function.crypt.php

GH> "
GH> crypt() on operating systems where multiple encryption mechanisms are
GH> supported gets triggered by the actual salt you feed it. If you feed
GH> crypt a 2-char salt, then it will use DES encryption. If you feed it a
GH> 12-char salt starting with $1$ it will use MD5. If you feed it a
GH> 17-char salt starting with $2$ it will do Blowfish.


GH> It has been theorized that feeding salt for an encryption method that is
GH> not supported by the OS will result in some other encryption being
GH> employed. If true, it might be possible to detect unsupported
GH> encryption methods by providing a salt and comparing the first n
GH> characters of the result with the provided salt.
GH> "

GH> If you know what encryption method perl is using you may be able to set
GH> php to do the same.

GH> HTH

GH> George





GH> Richard Watt wrote:
>> Hello all, does anyone have a clue how to force PHP and Perl to
>> provide the same results
>> PHP : crypt($password, "AB");
>> produces something completely different from the exact same function
>> in Perl, anything i'm missing, or is it completely hopeless?
>>
>> Any other lightweight password scrambling I can safely use in both
>> languages (other than MD5 - the Perl module isnt installed on this
>> server...)
>>
>> ---------------------------
>> Richard Watt Website Design
>> site : http://www.rwatt.co.uk
>> email : [EMAIL REMOVED]
>> phone : (0131) 466 0700
>> fax : (0131) 466 1813