SHA-1 Hash Cracker

A Rust-based tool to crack SHA-1 hashes using a dictionary (wordlist) attack. This program takes a SHA-1 hash and a wordlist file path as input, then iterates through the wordlist to find a matching hash.

Features

• Dictionary Attack: Uses a wordlist to crack SHA-1 hashes.
• Command-Line Interface: Easy-to-use CLI for specifying hash and wordlist path.
• Error Handling: Provides clear error messages for incorrect input formats.

Prerequisites

• Rust (version 1.56 or later)

Installation

1. Clone this repository:

   git clone https://github.com/yourusername/sha1-cracker.git
   cd sha1-cracker

2. Add dependencies in Cargo.toml:

   [dependencies]
   sha1 = "0.10"
   hex = "0.4"

3. Build the project:

   cargo build --release

Usage

To run the SHA-1 hash cracker:

cargo run -- <path/to/wordlist.txt> <sha1_hash>

Example

cargo run -- rockyou.txt 7c6a61c68ef8b9b6b061b28c348bc1ed7921cb53

• rockyou.txt is the wordlist file containing potential passwords.
• 7c6a61c68ef8b9b6b061b28c348bc1ed7921cb53 is the SHA-1 hash to crack.

Output

• If a matching hash is found:

  Password found: password123
  

• If no match is found:

  Password not found
  

Code Structure

• Command-Line Arguments: Reads the file path and target hash.
• Hash Validation: Checks if the SHA-1 hash is in the correct 40-character format.
• Wordlist Processing: Reads each line in the wordlist, hashes it, and compares it to the target.

Error Handling

• Invalid Arguments: Prompts the correct usage if arguments are missing or incorrect.
• Invalid SHA-1 Hash Length: Checks if the SHA-1 hash is the correct length (40 characters).