crackmes.one

TellIsHow's Build the Decrypt

Author:
TellIsHow

Language:
C/C++

Upload:
2026-01-31 22:53

Platform:
Windows

Difficulty:
6.0

Quality:
4.0

Arch:
x86-64

Downloads:
13

Size:
6.63 MB

Writeups:
0

Comments:
0

Description

This crackme implements a custom hybrid cryptographic algorithm. When executed, the program generates a file named decryptme.txt in the current directory. The binary contains only the encryption logic. No decryption routine is present. Your task is to analyze the algorithm, understand its internal structure, and implement your own decryption algorithm. A fixed password is used internally: 123 If your decryption is correct, decrypting decryptme.txt will produce: a1b2-c3d4-e5f6-7890_CONGRATS_YOU_REVERSED_IT_