function generatePassword(length, options) {
  const charset = getCharset(options);
  let password = '';
  for (let i = 0; i < length; i++) {
    password += charset.charAt(Math.floor(Math.random() * charset.length));
  }
  return password;
}

const encrypt = (text, key) => {
  let result = '';
  for (let i = 0; i < text.length; i++) {
    result += String.fromCharCode(text.charCodeAt(i) ^ key.charCodeAt(i % key.length));
  }
  return result;
}

class PasswordGenerator {
  constructor(options) {
    this.options = options;
  }
  generate(length) {
    // Implementation
  }
}

async function hashPassword(password) {
  const encoder = new TextEncoder();
  const data = encoder.encode(password);
  const hash = await crypto.subtle.digest('SHA-256', data);
  return Array.from(new Uint8Array(hash))
    .map(b => b.toString(16).padStart(2, '0'))
    .join('');
}