🔎 KYT – Know Your Target

KYT (Know Your Target) is a high-performance, persona-driven password generation engine written in Rust.

It is designed for:

• ✅ Authorized red-team simulations
• ✅ Enterprise IAM password policy auditing
• ✅ CTF challenge development
• ✅ Security research & compliance testing

KYT intelligently models how humans create passwords based on personal, professional, and contextual data.

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🚀 Features

🧠 Persona-Based Mutation Engine

• Cross-category combinator (depth ≤ 3 / ≤ 4 in aggressive mode)
• Identity, Geography, Professional & Personal data modeling
• Intelligent date fragment derivation (DD, MM, YY, YYYY, DDMM)
• Reverse variants
• Case permutations
• L33t substitutions
• Symbol prefix / suffix / infix injection
• Numeric mask expansion (000–999 / 0000–9999 in aggressive mode)
• Policy-aware pruning
• Deduplicated output

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🔥 Aggressive CTF Mode

Enable deeper combinator logic and expanded mutation space:

--aggressive

Adds:

• Depth 4 cross stacking
• Larger numeric mask space
• Extended symbol injection
• Multi-level l33t mutations

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⚙ Streaming Bruteforce Engine

Optional full keyspace generation:

--bruteforce

• Cartesian charset enumeration
• Streaming output (no memory explosion)
• Resume checkpoint support
• Parallelized with Rayon

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📊 Enterprise Password Policy Support

• Minimum / Maximum length
• Required uppercase
• Required lowercase
• Required numeric
• Required symbol
• Mandatory inclusion strings
• Exclusion strings
• Pre-validation before write

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🏗 Architecture

KYT
 ├── interview.rs       # Interactive persona builder
 ├── models.rs          # Data structures
 ├── mutation.rs        # Persona mutation engine
 ├── bruteforce.rs      # Streaming brute engine
 ├── policy.rs          # Password policy validation
 ├── writer.rs          # Buffered output writer
 └── main.rs            # CLI entrypoint

Parallelization powered by:

• rayon
• indicatif (CLI progress)
• clap (CLI parsing)

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📦 Installation

Prerequisites

Install Rust:

Windows

Download from: https://rustup.rs

Or PowerShell:

winget install Rustlang.Rustup

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Linux

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
source $HOME/.cargo/env

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macOS

brew install rust

or via rustup:

curl https://sh.rustup.rs -sSf | sh

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🔨 Build KYT

Clone the repository:

git clone https://github.com/Vedant-VB07/kyt.git
cd KYT-Know-Your-Target

Build release binary:

cargo build --release

Binary will be located at:

target/release/KYT-Know_Your_Target

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🖥 Deployment

Windows

After building:

target\release\KYT-Know_Your_Target.exe

You can move the .exe into:

C:\Windows\System32

or any directory added to PATH.

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Linux

Move binary to:

sudo mv target/release/KYT-Know_Your_Target /usr/local/bin/kyt

Now run:

kyt

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macOS

Same as Linux:

sudo mv target/release/KYT-Know_Your_Target /usr/local/bin/kyt

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🧪 Usage

Interactive Mode

cargo run --release

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Aggressive CTF Mode

cargo run --release -- --aggressive

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JSON Persona Mode (CI/CD Friendly)

cargo run --release -- --json persona.json

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Streaming Bruteforce Mode

cargo run --release -- --bruteforce

Resume from checkpoint:

cargo run --release -- --bruteforce --resume 5000000

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🧠 Example Output

For:

• Name: john
• Nicknames: doe, jelly
• Birthdate: 01011999
• Policy: 6–8 chars, upper+lower+digit+symbol

KYT may generate:

doe0101!
jelly!
john1999

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📈 Performance

• Parallel mutation via Rayon
• HashSet-based deduplication
• Streaming mode for large-scale brute enumeration
• Efficient early length pruning
• Optimized release builds recommended

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🔐 Security Notice

KYT is designed strictly for:

• Authorized penetration testing
• Security auditing
• Educational use
• CTF development

Do not use this tool against systems without explicit written authorization.

The author assumes no liability for misuse.

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🛠 Roadmap

• Entropy scoring module
• Probability ranking engine
• Streaming mutation mode (no HashSet)
• Performance metrics dashboard
• Distributed generation support
• Wordlist export formats (hashcat/JTR masks)

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📜 License

MIT License

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👨‍💻 Author

Vedant Bondekar

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⭐ If You Like This Project

Star the repository and contribute!

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