Dear Cornholio,
The concept of two secret passwords was followed in the old keys.
In Sentinel LDK, there are no passwords. The vendor specific details are there in the vendor code string (.hvc file). This is an encrypted string so all the information is secured even if this string is exposed.
The license or memory of key can only be accessed by using the vendor code string along with your vendor specific library files. The vendor specific information present in the library files are matched with the information in encrypted string and then only the license can be accessed.
Thanks,
Ashish