This won't work, the md5 system command is to generated md5 message digests. 
These are very different from salted passwords, which are a one-way 
encryption that will almost never be the same. Message digests are always the 
same, using them to encrypt passwords would be abit silly :)

Digests are used (normally) to check the integrity of a downloaded file.

To do this from the command line (without compiling a C program to use it from 
libcrypt) you can use perl, as Matthew Seamon points out:

    % perl -e 'print crypt(q{password}, q{$1$xxxxxxxx$}), "\n";'

In this case, the xxxx's would be the 8 character MD5 salt.


On Saturday 25 January 2003 21:35, Nathan Kinkade wrote:
> On Sat, Jan 25, 2003 at 01:55:50PM -0500, Bill Moran wrote:
> <snip>
> > >2. What command can i use if I want to crypt a word and I see it
> > >encrypoted just like the /etc/master.passwd file? For example, I want to
> > >know how the password "foobar" would be encrypted in /etc/master.passwd
> > >if It would be my real passwd.
> >
> > I don't know the answer to this one, check the source.
> <snip>
> If you are using md5 password hashing for master.passwd then you can use
> the command:
> # md5 -s "mypassword"
> This should show you what the string ``mypassword'' will hash to using
> md5.  However, the other options are des and blf (blowfish).  To see
> which you are using check the paramter passwd_format in /etc/login.conf.
> I don't know what you would use to figure the others, at least not
> through bash.
> Nathan

Willie Viljoen
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