Rust CLI Password Manager

A small terminal tool for securely storing, retrieving, and managing passwords using encrypted JSON storage, master password protection, and overwrite prompts. Perfect for practicing Rust, CLI programming, and basic encryption.

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Features

• add <name> – Add a new password (with confirmation and overwrite prompt)
• list – Show all account names
• get <name> – Retrieve the password for an account
• AES-256-GCM encryption with Scrypt key derivation
• Master password authentication

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Installation

git clone https://github.com/R-100/Rust-CLI-Password-Manager.git
cd rust-cli-password-manager
cargo build
cargo run -- <COMMAND>

Usage

Add a password

cargo run -- add gmail

Enter and confirm the password If the account exists, you'll be asked: "Do you want to overwrite it? (y/n)"

List accounts

cargo run -- list

Get a password

cargo run -- get gmail

Screenshots

Add & Overwrite Prompt

Open Password Manager enter your Masterpassword:
Password matches via your Input
Entry "gmail" already exists. Do you want to overwrite it? (y/n)

List

 ========= List for Password Names =========
github
google
...

Get

 ========= Password Element =========
gmail: mypassword123

Learning Goals

• Rust CLI programming with clap
• JSON persistence using serde
• Encryption using aes-gcm & key derivation with scrypt
• CLI interaction and overwrite handling

Security Notice

This project is for learning purposes only. Do not use for real sensitive data.

File Structure

src/
├── main.rs        # Main program
├── passwords.json # Encrypted password storage
Cargo.toml
README.md