├── README.md
├── build.gradle.kts
└── src
    └── main
        └── kotlin
            └── KotlinCrackMaster.kt


/README.md:
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 1 | # KotlinCrackMaster
 2 | 
 3 | KotlinCrackMaster is an educational CrackMe project written in Kotlin, designed to enhance skills in reverse engineering, code analysis, and software security. The program verifies user-entered activation passwords using basic obfuscation techniques to complicate code analysis.
 4 | 
 5 | ## Features
 6 | 
 7 | - Simple command-line interface
 8 | - Activation password verification with basic obfuscation
 9 | - Protection against straightforward code analysis
10 | - Detailed documentation for beginners
11 | 
12 | ## Installation
13 | 
14 | ### Prerequisites
15 | 
16 | - Kotlin (version 1.5 or higher)
17 | - Java Development Kit (JDK) 8 or higher
18 | - Gradle (comes with the project)
19 | 
20 | ### Steps
21 | 
22 | 1. **Clone the repository:**
23 |     ```bash
24 |     git clone https://github.com/yourusername/KotlinCrackMaster.git
25 |     cd KotlinCrackMaster
26 |     ```
27 | 
28 | 2. **Build the project using Gradle:**
29 |     ```bash
30 |     ./gradlew build
31 |     ```
32 | 
33 |     The compiled JAR will be located in `build/libs/`.
34 | 
35 | ## Usage
36 | 
37 | Run the program using the following command:
38 | 
39 | ```bash
40 | java -jar build/libs/KotlinCrackMaster.jar
41 | 


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/build.gradle.kts:
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 1 | plugins {
 2 |     kotlin("jvm") version "1.5.30"
 3 |     application
 4 | }
 5 | 
 6 | group = "com.yourusername"
 7 | version = "1.0.0"
 8 | 
 9 | repositories {
10 |     mavenCentral()
11 | }
12 | 
13 | dependencies {
14 |     implementation(kotlin("stdlib"))
15 | }
16 | 
17 | application {
18 |     mainClass.set("KotlinCrackMasterKt")
19 | }
20 | 


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/src/main/kotlin/KotlinCrackMaster.kt:
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 1 | import kotlin.system.exitProcess
 2 | 
 3 | // Function to obfuscate characters
 4 | fun obfuscate(c: Char): Char {
 5 |     return (c.code xor 0x5A).toChar()
 6 | }
 7 | 
 8 | // Function to get the obfuscated correct password
 9 | fun getObfuscatedPassword(): String {
10 |     val password = "SecurePass123"
11 |     return password.map { obfuscate(it) }.joinToString("")
12 | }
13 | 
14 | // Function to check the password
15 | fun checkPassword(input: String): Boolean {
16 |     val obfuscatedPassword = getObfuscatedPassword()
17 |     val obfuscatedInput = input.map { obfuscate(it) }.joinToString("")
18 |     return obfuscatedInput == obfuscatedPassword
19 | }
20 | 
21 | fun main() {
22 |     println("Welcome to KotlinCrackMaster!")
23 |     print("Please enter the activation password: ")
24 | 
25 |     val input = readLine()?.trim() ?: ""
26 |     
27 |     // Small delay to complicate analysis
28 |     Thread.sleep(500)
29 | 
30 |     if (checkPassword(input)) {
31 |         println("Congratulations! You have cracked KotlinCrackMaster.")
32 |     } else {
33 |         println("Incorrect password. Please try again.")
34 |     }
35 | 
36 |     exitProcess(0)
37 | }
38 | 


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