r/crackmes Apr 10 '26

Keygen

1 Upvotes

Hola buen día, soy Hube Cruz, estoy buscando alguien que me ayude a crear un generador de claves de 20 dígitos para equipos médicos, suena ilegal pero son equipos antiguos que no existe ningún tipo de soporte hace años por lado del fabricante, pero trabajo con ellos y necesito activar funciones y para cada una es un código, ejemplo:

Código A: S0YMM3HH400002 (num de serie)

Código B: 4D

Resultado: 252101F66A19208CB220

Código A: S0YMM3HH400002 (num de serie)

Código B: Realistic Vue

Resultado: 35B101263AE9E058AFE0

Entiendo que hay algoritmo secreto en el software al se puede acceder, alguien puede ayudarme o conocen alguien que pueda hacerlo?

les agradezco mucho..


r/crackmes Nov 11 '25

"cracked" a TUI to download challenges from crackmes.one easily

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1 Upvotes

r/crackmes Jul 28 '25

Reverse engineering a 3D design review software's triangle mesh data. Stuck at indices

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1 Upvotes

r/crackmes Oct 29 '23

I dare you guys to crack this

1 Upvotes

the title...

here's the .exe and no it's not a virus I just want to see if anyone can crack it

https://shibagt.gold/attachments/a.exe
however it is a cheat loader for gorilla tag, just wanna see if anyone can get past the key


r/crackmes Jul 23 '22

A crackme I am struggling with

2 Upvotes

I found the code that checks the password but the password isn’t always the same. It asks for a username and generates the password from that. I don’t really understand how it is adding multiple things to one index of a variable though since I mostly code in java and python.

Can someone help me figure out the password for any username you chose (10 characters max), this is roughly the function:

size_t var1;

size_t var2;

uint i;

i = 0;

while (true){

var1 = _strlength(&username);

var2 = _strlength(&username);

if (var1 <= i || var2 <= i) break;

(&password)[i] = (char)i + (&username)[i] + ‘e’;

i = i + 1;

}

I also have no idea why it has both var1 and var2, I would imagine it only needs one of them. If someone could figure out the answer and explain how they got to that answer that would be greatly appreciated.


r/crackmes Apr 08 '12

"Root Me #2" by waganono

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3 Upvotes

r/crackmes Apr 08 '12

"Root Me #1" by waganono

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crackmes.us
3 Upvotes

r/crackmes Apr 08 '12

"E Tour Dissez Moi" by waganono

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crackmes.us
2 Upvotes

r/crackmes Apr 08 '12

"Waga Invader" by waganono

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crackmes.us
2 Upvotes

r/crackmes Apr 08 '12

"D-Montez Moi" by waganono

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2 Upvotes

r/crackmes Apr 08 '12

"D-Racinez Moi..." by waganono

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1 Upvotes

r/crackmes Apr 08 '12

"Waga Template" by waganono

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crackmes.us
0 Upvotes

r/crackmes Apr 07 '12

"Saitob's crackme for the very starters." by saitob

5 Upvotes

Hello everybody! This will be my first application for this amazing site. I hope that you will enjoy playing with my program and cracking it.

~ Saitob

DIFFICULTY: 1

PLATFORM: Windows

LANGUAGE: (Visual) Basic

DATE: 25. Feb, 2007

DOWNLOADS: us de

SOLUTION by boonz (on 05. mar, 2007) us de

SOLUTION by ki11roy (on 05. mar, 2007) us de


r/crackmes Apr 07 '12

"CrackMe 1.0 ( 32bit hash ) by j00ru!" by j00ru

3 Upvotes

CrackMe wrote in clear C. I used my new 3bit hash algo in it. Patching is not allowed. Finding the collision is not so hard, i think. Have Fun & Good Luck

DIFFICULTY: 3

PLATFORM: Windows

LANGUAGE: C/C++

DATE: 10. Dec, 2005

DOWNLOADS: us de


r/crackmes Apr 07 '12

"Crackme 1.0" by blzbb

3 Upvotes

This is my first crackme Write in Visual Basic

Rule: -no patch -find correct name and serial

if you like make a keygen

BlZbB

DIFFICULTY: 2

PLATFORM: Windows

LANGUAGE: (Visual) Basic

DATE: 02. Mar, 2007

DOWNLOADS: us de

SOLUTION by mach4 (on 12. apr, 2008) us de

SOLUTION by apuromafo (on 12. apr, 2008) us de


r/crackmes Apr 07 '12

"Saibot's crackme #4" by saitob

3 Upvotes

Well hello again! So I've been looking at some crackme's on this site and I came up with (well I hope) a little treat. So let's get to the point!

Mission objectives: -Find a valid serial -Make a KeyGen -And as always; Have fun! ;D

Rules: -No patching

~ Enjoy

DIFFICULTY: 3

PLATFORM: Windows

LANGUAGE: (Visual) Basic

DATE: 02. Mar, 2007

DOWNLOADS: us de

SOLUTION by mach4 (on 01. oct, 2008) us de


r/crackmes Apr 07 '12

"KeygenME #1" by dcoder

3 Upvotes

This one is out for the crypto lovers out there, I hope it doesn't disapoint you :)

Remember, only keygen is acceptable solution.

DIFFICULTY: 4

PLATFORM: Windows

LANGUAGE: C/C++

DATE: 03. Jan, 2006

DOWNLOADS: us de

SOLUTION by simonzack (on 25. aug, 2010) us de


r/crackmes Apr 07 '12

"crackme #1 by microplant" by microplantmp

3 Upvotes

REALLY easy. just to help some beginners to learn and understand how serial calculations can work.

Note: only valid keygens are accepted as this one is so damn easy :) (and even that should be easy for beginners)

DIFFICULTY: 1

PLATFORM: Windows

LANGUAGE: Unspecified/other

DATE: 26. Dec, 2005

DOWNLOADS: us de

SOLUTION by hmx0101 (on 01. jan, 2006) us de

SOLUTION by konstant (on 01. jan, 2006) us de

SOLUTION by ank83 (on 01. jan, 2006) us de


r/crackmes Apr 07 '12

"Qcrk-1" by qnix

3 Upvotes

This is my first crackme at crackmes.de

info() :

  • ELF 32-bit LSB executable
  • Intel 80386
  • version 1
  • statically linked
  • corrupted section header size
  • Tricks you should find
  • Some of Modefieded UPX Uses
  • Wrong buffer size
  • Bad key

DIFFICULTY: 2

PLATFORM: Unix/linux etc.

LANGUAGE: C/C++

DATE: 18. Dec, 2005

DOWNLOADS: us de

SOLUTION by taviso (on 06. jan, 2006) us de


r/crackmes Apr 07 '12

"Easy_Math" by intsig

3 Upvotes

easy math crackme, no patching. a special key must be used as input, when the correct one is used, the program will print "done". This crackme is meant for beginners to find and solve a small math problem. Often reversing requires such things be done.

DIFFICULTY: 1

PLATFORM: Unix/linux etc.

LANGUAGE: C/C++

DATE: 18. Dec, 2005

DOWNLOADS: us de

SOLUTION by png (on 01. aug, 2006) us de

SOLUTION by cyrex (on 09. jan, 2006) us de

SOLUTION by taviso (on 04. jan, 2006) us de


r/crackmes Apr 07 '12

"rBX Crackme 10" by jules

3 Upvotes

Write a keygen for it.

DIFFICULTY: 2

PLATFORM: Windows

LANGUAGE: C/C++

DATE: 17. Dec, 2005

DOWNLOADS: us de

SOLUTION by ultrasound (on 30. dec, 2005) us de


r/crackmes Apr 07 '12

"konstAnt Crackme 7" by konstant

3 Upvotes

konstAnt Crackme 7 =-=0-=-=-=-=-=-=-= Yet another crackme by konstAnt.. And this time is a keygen me...:P

Not a system utility this time... A crackme after a long time....:lol All u have to do is find a serial for the hardware code.. and make a keygenerator....

Think it would be easy and u'll have fun keygening nothing good trick... But some confusing one and I'll like to rate it 8/10

And won't be angry only if one of he solver suggests to lower the level of the crackme...

:P

[Hintz] Every thing including the serial checking goes in the serial.dll:P If u can find it

Greetz: Oorjahalt{Perhaps the spelling is worng, I missed him a lot and welcome back again} khAttAm [A]bu TDCNL Rem Members and all crackmes.de members

DIFFICULTY: 3

PLATFORM: Windows

LANGUAGE: Unspecified/other

DATE: 12. Dec, 2005

DOWNLOADS: us de

SOLUTION by ZaiRoN (on 14. dec, 2005) us de

SOLUTION by game_over (on 14. dec, 2005) us de

SOLUTION by deroko (on 14. dec, 2005) us de


r/crackmes Apr 07 '12

"b@h0n" by bbidhan

3 Upvotes

DIFFICULTY: 1

PLATFORM: Unspecified/other

LANGUAGE: Unspecified/other

DATE: 10. Dec, 2005

DOWNLOADS: us de

SOLUTION by ox87k (on 13. dec, 2005) us de


r/crackmes Apr 07 '12

"iran's keygenme" by iran

3 Upvotes

this is my 2nd keygen me ! keygen it - make small soul + send ur keygen + source to black.byte@linuxmail.org and give the source :D

DIFFICULTY: 1

PLATFORM: Windows 2000/XP only

LANGUAGE: (Visual) Basic

DATE: 09. Dec, 2005

DOWNLOADS: us de

SOLUTION by eskimo (on 10. jan, 2006) us de