EXETOOLS FORUM  

Go Back   EXETOOLS FORUM > General > Source Code

Notices

Reply
 
Thread Tools Display Modes
  #1  
Old 05-30-2014, 03:48
chessgod101's Avatar
chessgod101 chessgod101 is offline
Co-Administrator
 
Join Date: Jan 2011
Location: United States
Posts: 480
Rept. Given: 2,083
Rept. Rcvd 665 Times in 206 Posts
Thanks Given: 428
Thanks Rcvd at 548 Times in 103 Posts
chessgod101 Reputation: 500-699 chessgod101 Reputation: 500-699 chessgod101 Reputation: 500-699 chessgod101 Reputation: 500-699 chessgod101 Reputation: 500-699 chessgod101 Reputation: 500-699
Brute Forcing a Custom CRC

Here is a delphi code example which demonstrates how to brute force a hidden, custom crc check for a license key. One character from the custom crc calculation is used in an interesting calculation with the characters from which it was created.

The target for this example is Mayura Draw 4.5:
Code:
http://www.mayura.com/
If you have any questions regarding the functionality of the source, do not be afraid to ask. I am not here to criticize beginners, I am here to teach them.
Attached Files
File Type: rar mdkg_src.rar (85.1 KB, 94 views)
__________________
"Real knowledge is to know the extent of one's ignorance." Confucius

Last edited by chessgod101; 05-30-2014 at 03:57.
Reply With Quote
The Following 10 Users Gave Reputation+1 to chessgod101 For This Useful Post:
DMichael (05-30-2014), Dreamer (05-30-2014), giv (05-30-2014), Jay (05-31-2014), k2k2000 (05-30-2014), ontryit (06-01-2014), uranus64 (05-30-2014), wilson bibe (05-30-2014), XorRanger (05-31-2014), zeuscane (05-30-2014)
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



All times are GMT +8. The time now is 20:22.


��ICP��05004977��
Always Your Best Friend: Aaron, JMI, ahmadmansoor, ZeNiX