MyCrackDB

A high-performance C++ tool for generating, storing, and looking up cryptographic hashes. Built with RocksDB for ultra-fast, persistent key-value storage and OpenSSL for robust hashing, MyCrackDB is optimized to process and ingest massive wordlists efficiently.

Features

• 17 Supported Algorithms: Automatically generates hashes for MD5, SHA1, SHA2 (224/256/384/512), SHA3, BLAKE2, RIPEMD160, and SM3 simultaneously.
• High-Performance Ingestion: Utilizes rocksdb::WriteBatch and bitwise hex conversions to process millions of lines from wordlists with minimal overhead.
• Smart Deduplication: Checks for existing plaintexts in the default column family before hashing to save CPU cycles and disk space.
• Column Family Architecture: Cleanly separates different hash algorithms into their own RocksDB column families for organized storage and lightning-fast lookups.

Prerequisites

To build this project, you will need:

• A C++17 compatible compiler (MSVC, GCC, or Clang)
• Conan (C/C++ Package Manager)

Required Libraries (Handled by Conan)

• rocksdb/8.10.0 (or your preferred version)
• openssl/3.x.x (Requires OpenSSL 3.0+ for native alias support)

Building the Project

This project uses Conan to manage dependencies.

1. Clone the repository:

   git clone https://github.com/AhmedAlDiab/MyCrackDB.git
   cd MyCrackDB

2. Install dependencies using Conan: Run the following command to download and build the required libraries for C++17:

conan profile detect --force
conan install . --build=rocksdb --build=zstd -o rocksdb/*:with_zstd=True -s compiler.cppstd=17 --output-folder=conan

• finally you can build it.

Usage

Run the compiled executable from your terminal.

Basic Commands

Usage:
 MyCrackDB -h or --help                  : show help
 MyCrackDB -l or --lookup <hash>         : lookup hash
 MyCrackDB -ls or --list                 : display available hash algorithms
 MyCrackDB -c or --count                 : count the total number of words in the database
 MyCrackDB -g <text>                     : generate and store <text>
 MyCrackDB -g <text> -d <algo1,algo2,..> : generate, store and display hashes for <text>
         (Don't add spaces between algos if no algorithm selected deafult is all)*
                    (Example: MyCrackDB -g ahmed -d MD5,SHA1)*
 MyCrackDB -g -w wordlist.txt            : generate and store each line from file as a value

Examples

1. Generate hashes for a single word:

./MyCrackDB -g "password123"

2. Generate a word and display it in specific algorithms:

./MyCrackDB -g ahmed -d MD5,SHA1

3. Ingest a massive dictionary/wordlist:

./MyCrackDB -g -w rockyou.txt

4. Lookup a hash to find its plaintext:

./MyCrackDB -l 5d41402abc4b2a76b9719d911017c592

Output:

value: hello
Algorithm: MD5

5. List all available hash algorithms:

./MyCrackDB -ls

6. Check how many words are currently stored:

./MyCrackDB -c

Database Storage

Upon first run, the tool will create a folder named HashesDB in the directory where the executable is launched. This folder contains the RocksDB database files. Note: Ensure you have read/write permissions in the execution directory. Do not run multiple instances of MyCrackDB simultaneously, as RocksDB locks the database directory to a single process.