| View previous topic :: View next topic |
| Author |
Message |
ripnet
Joined: 05 May 2005
Posts: 12
|
 Posted: Fri May 06, 2005 11:33 pm Post subject: Would a strings of the UMD dumps be allowed here? |
 |
|
Hi,
Running
cat * | strings -9 | uniq
against the ripped UMD data produces quite a lot of interesting strings...
for example, we get
GCC: (GNU) 3.3.3+allegrex-2.2.1-psp-1.5.1.internal
and
host0:/usr/local/psp/devkit/module/pspnet.prx
and
sceKernelLoadModule()
and
SceParseHTTPheader_Library (on Ridge Racer) which i didnt think had a browser...
Of course, the most important conclusion from this is that the binaries are not encrypted (at least not entirely)...
I think we can learn a lot about how this thing works from these
i reckon they are still signed tho, and I reckon that the line that says
ULJS-00001|CCCD9317C815B9F5|0001|G|
has the signature in it. Unless im mistakes, the length of CCCD9317C815B9F5 is 64 bits, and not 128 bits (which is the length of the AES key)...
g |
|
| Back to top |
|
 |
Pikoro
Joined: 13 Jan 2005
Posts: 56
|
| Posted: Fri May 06, 2005 11:39 pm Post subject: |
|
|
| Guess not. The mods killed my strings thread. |
|
| Back to top |
|
|
xaeon
Joined: 07 May 2005
Posts: 4
|
| Posted: Sat May 07, 2005 12:42 am Post subject: |
|
|
| Achtung! Teilen Sie nicht interessante Sachen hier mit! |
|
| Back to top |
|
|
ripnet
Joined: 05 May 2005
Posts: 12
|
| Posted: Sat May 07, 2005 12:44 am Post subject: ... in English |
|
|
Babel Fish Translation:
Achtung! Teilen Sie nicht interessante Sachen hier mit!
=
Note! Do not communicate interesting things here!
:-O |
|
| Back to top |
|
|
MelGibson
Joined: 10 Apr 2005
Posts: 58
|
| Posted: Sat May 07, 2005 12:46 am Post subject: |
|
|
| xaeon wrote: | | Achtung! Teilen Sie nicht interessante Sachen hier mit! |
German - translates to: Warning! Don't post interesting things here
Thats wasa useful 1st post xaeon. Congrats. Good puppy |
|
| Back to top |
|
|
xaeon
Joined: 07 May 2005
Posts: 4
|
| Posted: Sat May 07, 2005 12:57 am Post subject: |
|
|
| MelGibson wrote: | | xaeon wrote: | | Achtung! Teilen Sie nicht interessante Sachen hier mit! |
German - translates to: Warning! Don't post interesting things here
Thats wasa useful 1st post xaeon. Congrats. Good puppy |
Every bit as much as yours. |
|
| Back to top |
|
|
MelGibson
Joined: 10 Apr 2005
Posts: 58
|
| Posted: Sat May 07, 2005 1:03 am Post subject: Re: Would a strings of the UMD dumps be allowed here? |
|
|
| ripnet wrote: |
i reckon they are still signed tho, and I reckon that the line that says
ULJS-00001|CCCD9317C815B9F5|0001|G|
has the signature in it. Unless im mistakes, the length of CCCD9317C815B9F5 is 64 bits, and not 128 bits (which is the length of the AES key)...
|
No its 128bit. For each letter/number 8bit. but i think its rather some crc... don't have the iso though to check... |
|
| Back to top |
|
|
xaeon
Joined: 07 May 2005
Posts: 4
|
| Posted: Sat May 07, 2005 1:11 am Post subject: Re: Would a strings of the UMD dumps be allowed here? |
|
|
| MelGibson wrote: | | ripnet wrote: |
i reckon they are still signed tho, and I reckon that the line that says
ULJS-00001|CCCD9317C815B9F5|0001|G|
has the signature in it. Unless im mistakes, the length of CCCD9317C815B9F5 is 64 bits, and not 128 bits (which is the length of the AES key)...
|
No its 128bit. For each letter/number 8bit. but i think its rather some crc... don't have the iso though to check... |
no, each hex digit is equivalent to 4 binary digits
1111=15=F
11111111=255=FF |
|
| Back to top |
|
|
MelGibson
Joined: 10 Apr 2005
Posts: 58
|
| Posted: Sat May 07, 2005 1:39 am Post subject: |
|
|
ULJS-00001|CCCD9317C815B9F5|0001|G
hex
554C4A532D30303030317C434343443933313743383135423946357C303030317C47
43434344393331374338313542394635 128bit
but maybe i'm completly wrong :| |
|
| Back to top |
|
|
xaeon
Joined: 07 May 2005
Posts: 4
|
| Posted: Sat May 07, 2005 1:59 am Post subject: |
|
|
| MelGibson wrote: | ULJS-00001|CCCD9317C815B9F5|0001|G
hex
554C4A532D30303030317C434343443933313743383135423946357C303030317C47
43434344393331374338313542394635 128bit
but maybe i'm completly wrong :| |
CCCD9317C815B9F5 is a hexidecimal number that can be represented by 64 binary digits
however, if you are taking it as a string instead of a number, then each digit is represented by 2 hex digits, which would amount to 128 bits, so we're both right, it just depends on how its used. |
|
| Back to top |
|
|
blackdroid
Joined: 17 Jan 2004
Posts: 564
Location: Sweden
|
| Posted: Sat May 07, 2005 2:43 am Post subject: |
|
|
runnings strings on binary data is the least interesting thing you potentially could do with distributed copyrighted binary data, if people think its interesting they can do so by themselves, no need to fill yet another useless thread with nonsense.
_________________
Kung VU |
|
| Back to top |
|
|
MindWall
Joined: 10 May 2005
Posts: 70
|
| Posted: Tue May 10, 2005 4:48 pm Post subject: |
|
|
Mel, what you are looking at is:
(product ID)|(Unique Disk ID)|0001|G
the Unique Disk ID is sotred HEX here. |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
