junfer001 on 2024-10-26 18:34:
Maybe its just my inexperiance (only solved 3 crackmes on the page), but is it ok that i allways default to finding test condition and turn them around? I feel like im missing out alot on other tehniques
bernas198YT on 2025-01-09 15:27:
In the main function:
sub_401639 is called with v4 as target, v5 as input ("331") and a3 = 22.
This means it generates a key derived from "331" by applying an offset of 22.
For "331":
'3' → (3 + 22) % 10 = 5
'3' → (3 + 22) % 10 = 5
'1' → (1 + 22) % 10 = 3
Result/Correct Key: "553"
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Solution by Benbaby on 2024-10-23 07:05: Good one. Thanks Bro.