generating md5 passwords

generating md5 passwords

Post by Alex Ha » Sun, 03 Feb 2002 01:53:36



I'd like to know how the md5 passwords in my shadow file are
generated. I've tried every possible combination that I can think of,
but I can't reproduce what's in there. I'm using the perl module
Digest::MD5, but don't think that should matter.

Can someone show me the algorithm. Thanks.

- Alex Hart

 
 
 

generating md5 passwords

Post by Michael Heimin » Sun, 03 Feb 2002 06:02:04




February 2002 17:53:

Quote:> I'd like to know how the md5 passwords in my shadow file are
> generated. I've tried every possible combination that I can think
> of, but I can't reproduce what's in there. I'm using the perl module
> Digest::MD5, but don't think that should matter.

> Can someone show me the algorithm. Thanks.

> - Alex Hart

man crypt

Michael Heiming
--
Remove the +SIGNS case mail bounces.

 
 
 

generating md5 passwords

Post by Lee Sau Da » Thu, 07 Feb 2002 17:20:40




    Michael> at Friday 01 February 2002 17:53:

    >> I'd like to know how the md5 passwords in my shadow file are
    >> generated. I've tried every possible combination that I can
    >> think of, but I can't reproduce what's in there. I'm using the
    >> perl module Digest::MD5, but don't think that should matter.
    >>
    >> Can someone show me the algorithm. Thanks.
    >>
    >> - Alex Hart
    >>
    Michael> man crypt

        Try:
        $ perl -e 'print crypt("abcdefg","\$1\$pqrstuvwxyz"),"\n"'

        Have fun!

--


Home page: http://www.informatik.uni-freiburg.de/~danlee

 
 
 

1. Using MD5 to generate a one-time password ?

Hi,

I was just wondering what are the problems with using md5sum to
generate a one-time passwd (you type the string given by the host you
want to connect on, your own passwd, you obtain a md5 which is your
OTP) ?

Considering people wrote specific software to generate OTP, I guess
there is a theoretical problem ? Which one is it ?

Regards.

F.

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