Test credentials were mentioned before as well.
We said that if you connect to a remote computer once you don't have to authenticate a remote system
again how does that work.
A Unicode password which is our entry password and our log in and domain name are used to generate a
string Unicode password is already the result of hashing the generated string is again hashed with an
empty message digest function the output is a cast credential.
It has subsequently saved in a protected registry key you could perhaps say that it's possible to harvest
it and attempt to obtain the password would need to successfully reverse two hashing functions.
This probably hasn't ever turned out a success.
If attackers take time and apply their skills to it they can at best obtain the user's password to a
specific network share the password is not active in other servers or for other users.
This means that an attack would only produce a result that is already known before simply a local user's
credentials.
Before we move to Kerberos Let's briefly discuss the SAM file what the content of the file in the file
itself or encrypted you can make sure that by running the Siskiyou tool Sandbach tool in Windows 7 the
software is pre-installed in the system although it is rarely used and remains quite obscure.
The first window shows the sound file is encrypted
to disable encrypting.
You need to change the system configuration turning off Sam encryption is not recommended.
It wouldn't make any sense.
Encryption was first applied to the file back in Windows and T4.
There's no need to go back so far in time.
If you decide to encrypt something you need a decryption key to decode it at a startup.
Windows doesn't prompt the user for any keys.
It only requests the user log in and password which implies that the system is able to decrypt the same
file on its own.
The key for decoding the SAM file is saved in the same disk in the same folder one half of the key is
contained in the security file.
The other half in the system file cracking a password requires all three files the same file contains
passwords while security in-system contain the key to the password database
to provide your system with maximum security you can move the key to another location.
It can be generated from a password submitted to the window above after you set it up.
After a system start there would appear a low level request to submit the password.
If you don't submit it Windows will not start up since it is unable to reach the same file.
The key can also be stored on a disk.
It can't be saved on a USP drive for some reason.
You can also leave the file in the default location.
There's a certain error here.
I'm not sure if it was patched up in Windows 7.
We won't check it now.
Anyway if you would change something in the window above and click cancel this key will operate it in
a peculiar way since we use the update option tool assume that will change the location of the key that
protects the SAM it thought that we wouldn't need the old file anymore and deleted it.
If you click cancel in the second window a new key will not be generated.
This meant that you can work with your computer only until you switched it off when does not restart
again and the system would have to be reinstalled.
If there's any lesson to be learned from that even if you return to your previous settings click OK.