Not necessarily. Where it came from was in its encrypted state. You then decrypt it inside the register and never store it. This could be done both for the player key and the title key
First, to load it into register, you have to have it somewhere in memory. Loading key from the air in't implementet yet
Second, it yuo can decrypt it in register then yuo can decrypt in on a sheet of paper or somewhere
Third, after decrypting key you can write asm instruction to move it ut of register to memory.
There won't be any software playere capable of doing that in reasonable timespan because of two reasons
1. They use AES instead of some propietary algorithm proven to be weak. Crack AES and you will become a millionaire
2. key length here is 128 bit instead of only 40 in CSS.
What abuot an idea that every smtp server should have some second level domain, and requirement that forward and reverse dns of it matches? This is very easy to implement and would easily stop all the botnets, because buying a domain for every bot pc is way to expensive.
I have red all the above, as i undestand we have some data, whitch was red from disk itself, and some data (key) from player (Powerdvd). Then we tamper with whese two aruond and we get a real key with whitch we decode the movie. Am I right?
If yes,then the question is Why it is (or not) so hard to get that player key. Just fire up the debugger, trace until it reads key from disk (easy), now just look for code whitch does something with that. Somewhere around you will find the key. For example such cracking gruops as RELOADED cracked STARFORCE. it wasnt easy, but the main poblem was to get the executable running. They could extract all those keys from exe and from cds very easy. Why is it hard to do that with powerDVD? it's just simple player. No antidebugging trics, no rootkits, no cd drivers. Nothing.
And, as I understand AES you can decrypt content with only one key, so how can every piece of sofware have different keys?
Slashdot Mirror
Yeah sure, except when yuo read expirity date on same product which is 06/07/07. Is it expired?
First, to load it into register, you have to have it somewhere in memory. Loading key from the air in't implementet yet
Second, it yuo can decrypt it in register then yuo can decrypt in on a sheet of paper or somewhere
Third, after decrypting key you can write asm instruction to move it ut of register to memory.
There won't be any software playere capable of doing that in reasonable timespan because of two reasons 1. They use AES instead of some propietary algorithm proven to be weak. Crack AES and you will become a millionaire 2. key length here is 128 bit instead of only 40 in CSS.
What abuot an idea that every smtp server should have some second level domain, and requirement that forward and reverse dns of it matches? This is very easy to implement and would easily stop all the botnets, because buying a domain for every bot pc is way to expensive.
Well, why Slashdot don't provide it's user stats? I would be very nice to see comparison between regged and regular users.
I have red all the above, as i undestand we have some data, whitch was red from disk itself, and some data (key) from player (Powerdvd). Then we tamper with whese two aruond and we get a real key with whitch we decode the movie. Am I right?
If yes,then the question is Why it is (or not) so hard to get that player key. Just fire up the debugger, trace until it reads key from disk (easy), now just look for code whitch does something with that. Somewhere around you will find the key. For example such cracking gruops as RELOADED cracked STARFORCE. it wasnt easy, but the main poblem was to get the executable running. They could extract all those keys from exe and from cds very easy. Why is it hard to do that with powerDVD? it's just simple player. No antidebugging trics, no rootkits, no cd drivers. Nothing.
And, as I understand AES you can decrypt content with only one key, so how can every piece of sofware have different keys?