ThePhilosopher's The Matrix

Author:
ThePhilosopher

Language:
Assembler

Upload:
2021-10-31 16:22

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Platform:
Unix/linux etc.

Difficulty:
3.1

Quality:
4.2

Arch:
x86-64

Downloads:
10

Writeups:
1

Comments:
4

Description

Can you beat The Matrix ?!

Comments (4)
Writeups (1)

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dev0 on 2022-06-06 13:18: At the moment I can not beat the Matrix. Reversing it is fairly simple but the valid_key algorithm is a bit troubling. I see that the shift and multiply essentially divide by 2 and zero out the 2 least significant bits. When summed I do not see mathematically how the total that is compared can be computed with the algorithm. I know it has been solved because it is currently a lvl 3.6. Is there a way to mathematically calculate it with using brute force?

Elvis on 2022-06-07 03:48: [Click to reveal]

internaut401 on 2022-09-12 19:42: Solved! You can check in the Solution section to find my writeup.

internaut401 on 2022-10-06 11:53: Since my solution is still not published, i put the link to sol. here: https://github.com/Internaut401/CTF_Public_Writeup/blob/main/crackmes.one/The%20Matrix/The%20Matrix.md

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Solution by internaut401 on 2022-09-12 19:40:
https://github.com/Internaut401/CTF_Public_Writeup/blob/main/crackmes.one/The%20Matrix/The%20Matrix.md

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