Author:
Deskarponne

Language:
C/C++

Upload:
7:20 AM 06/29/2022

Platform
Unix/linux etc.

Difficulty:
4.0

Quality:
3.5

Arch:
x86-64

Description

Can you find a valid serial key ? Comment and proposal of solution appreciated It's my firt try at making challenges :)

• Comments
• Solutions

jeffli6789 on 1:49 PM 11/24/2022: Looks interesting and approachable, nice one, thx!

yves on 5:02 PM 06/28/2023: Are you sure this is doable? If int *data = mmap(NULL, 0x68, 3, 0x21, -1, 0) creates the mapping, then *data is 0. This results to *data = (*data & 0xf9) | (data[0x50] + 0xa9 & 3) * '\x02' always being an even integer, which won't pass return (*data & 1) != 0. Could you give me a hint of what I might be missing here?

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