namastejs/src/vault/vaultCrypto.js

A spiritual greeting from your JavaScript code. Because every function deserves a 'Namaste 🙏'

const crypto = require("crypto");

// AES-256-CBC encryption
function encrypt(text, key) {
  const iv = crypto.randomBytes(16);
  const cipher = crypto.createCipheriv("aes-256-cbc", key, iv);
  let encrypted = cipher.update(text, "utf8", "hex");
  encrypted += cipher.final("hex");
  return iv.toString("hex") + ":" + encrypted;
}

function decrypt(data, key) {
  try {
    const [ivHex, encrypted] = data.split(":");
    const iv = Buffer.from(ivHex, "hex");
    const decipher = crypto.createDecipheriv("aes-256-cbc", key, iv);
    let decrypted = decipher.update(encrypted, "hex", "utf8");
    decrypted += decipher.final("utf8");
    return decrypted;
  } catch {
    throw new Error("❌ Wrong master password or corrupted data.");
  }
}

// Simple hash for validating master password
function hashPassword(password) {
  return crypto.createHash("sha256").update(password).digest("hex");
}

module.exports = {
  encrypt,
  decrypt,
  hashPassword,
};