crackmes.one

inxaneninja's Keygen Practice

Author:
inxaneninja

Language:
C/C++

Upload:
6:51 PM 03/16/2019

Level:
1

Platform
Unix/linux etc.

Description

Simple keygen practice. You can patch, however the main goal is to find at least 50 valid keys. Have fun!

exhumer on 6:07 PM 03/19/2019: Attached link is for the simple (badly written) keygen source and a compiled Windows exe. NOTE: All my calculations are based on fact I assumed the keylength to fixed to be 9. However, it is possible to have a key with a higher/lower length. https://drive.google.com/open?id=1URrcgRZswJ-Hp_Ybx6ODr1TbmwRzidyo

xoru on 3:51 PM 03/23/2019: Fun challenge! I submitted the solution and keygen source code, the keygen by default generates 1 valid password each time it is run. You can generate 50 by invoking ./keygen 50. Thanks for sharing!