Howto convert base64 to md5

celeron · 03-01-2007, 12:24 AM

Hi, all
I have a LDAP database on Redhat 8.x. When I use ldapsearch comand, I receive userPassword at base64 hash format (userPassword:: e0NSWVBUfSQxJEZ1dVR0cGt0JFd0RkM1eUpOeTd2bmQ1cXNzY3ZMTC8=). Now, I want to convert this hash to MD5 hash. After, I will enter this MD5 hash to /etc/shadow and convert /etc/passwd to ldif file.
Do you have any solutions for this?

Thanks.

puffinman · 03-01-2007, 01:30 AM

You can use openssl to decode the base64 and the pipe it to md5sum like so

Code:

openssl enc -d -base64 -in myb64passwd.txt | md5sum

Depending on the format of your password file you'll probably have to wrap it in some sort of loop to process each password with md5sum individually.

celeron · 03-01-2007, 02:14 AM

Thanks for regarding.
I have just tried your solution but I can't use hash which export from openssl command.
It displays result:
[root@abc ~]# openssl enc -d -base64 -in myb64passwd.txt | md5sum
d41d8cd98f00b204e9800998ecf8427e -

Please give me more information.

Thanks.

puffinman · 03-01-2007, 02:19 AM

Yeah, that's md5sum giving you the answer. Look at the man pages for openssl and for md5sum.