How to extract cookies from Google Chrome

I have some site crawler. Site is protected from robots. To bypass this protection I pass cookies from browser session to Java URL request.  Cookies stored in Chrome in sqllite database in encrypted form. Before starting the crawler  my program opens Chrome browser with specified URL:

Runtime.getRuntime().exec(new String[]{"chromium-browser", "http://somesite.com"});
TimeUnit.SECONDS.sleep(40);

Then after browser is open and cookies written in to sqllite database I read cookies from sqllite using CookieMonster library.

ChromeBrowser chrome = new ChromeBrowser();
Set<Cookie> cookies = chrome.getCookiesForDomain("somesite.com");

After cookies extracted I have to decrypt them.  If you use chrome of version lower than 53  you should use  password "peanuts"  to decrypt your cookies.  But if you use version 53 or higher  - you should get password from OS secure storage.  If you use Ubuntu go to "Applications" -> "Password And Keys"   and search for "Chrome Safe Storage". Then click on it Properties and then click on show password button.  After you got password you can decrypt cookie in following way:

            byte[] salt = "saltysalt".getBytes();
            char[] password = "your password".toCharArray();
            char[] iv = new char[16];
            Arrays.fill(iv, ' ');
            int keyLength = 16;
            int iterations = 1;

            PBEKeySpec spec = new PBEKeySpec(password, salt, iterations, keyLength * 8);
            SecretKeyFactory pbkdf2 = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
            byte[] aesKey = pbkdf2.generateSecret(spec).getEncoded();

            SecretKeySpec keySpec = new SecretKeySpec(aesKey, "AES");
            Cipher instance = Cipher.getInstance("AES/CBC/PKCS5Padding");
            instance.init(Cipher.DECRYPT_MODE, keySpec, new IvParameterSpec(new String(iv).getBytes()));

            String encryptedString = new String(cookie.getEncryptedValue());
            byte[] bytes = null;
            // if cookies are encrypted "v1" is a the prefix (has to be removed before decryption)
            if (encryptedString.startsWith("v1")) {
                bytes = Arrays.copyOfRange(cookie.getEncryptedValue(), 3, cookie.getEncryptedValue().length);
            }

            try {
                byte[] decrypted = instance.doFinal(bytes);
                System.out.printLn("Decrypted:" + new String(decrypted))

            } catch (Exception ex) {
                System.out.println(ex);
            }