cracking rar files

[macgyver]

Hi Guys!

I need help again.
I not understand this method. I probe cracking RAR file. I stopped the first steps.
How can I extract or find the hash file from RAR file - what can I cracking.

When I use this program:

http://www.servetrue.com/md5extractor.php

I open with password protected RAR file. The program give me example:

MD5: 1645486C13EAF0D0EE6181BECA67B8FD
SHA1: 51A182EAD5823D3135B7256F2E5A1257EACB1F75

This is "that" hash file? I crack it and I have the password for archive, or this is other hash.
And this case, what program can I extract the correct hasch file, for cracking?