@spikey in tn
Doesn't quite work like that, encryption is a multi-stage data transformation process, each stage of the process is designed to makes it harder to reverse engineer the actual encryption routine itself (which has enough variability to allow each company to create a unique routine for their own purposes), it is actually possible to have two different encryption keys yield the same encrypted data result, compound this with the fact that the passwords were also salted, so even if you knew one set of results the chances of reverse engineering another is extremely difficult
@Netherscourge
In case you missed it, Valve did not simply think that a big heavy door equated to a secure system, they had setup a layered security system, yes the crooks broke down the front door, but fact is the data was encrypted and the password salted as well as the segmentation of servers meant they did not believe the front door was the be all end all of a security system