CUT3mrmL

1public class ChallengeResponseEncryptor {
2    private static byte[] mSharedSecretKeySdk = new byte[]{
3              (byte) 0xAF, (byte) 0x12, (byte) 0x5E, (byte) 0x00, (byte) 0xD2,
4              (byte) 0xF7, (byte) 0x11, (byte) 0xE4, (byte) 0x9E, (byte) 0x51, (byte) 0x00, (byte) 0x02, (byte) 0xA5,
5              (byte) 0xD5, (byte) 0xC5, (byte) 0x1A
6    };
7
8    public static byte[] encryptKey(byte[] deviceKey) {
9        try {
10            SecretKey aesKey = new SecretKeySpec(mSharedSecretKeySdk, "AES");
11            Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");
12            cipher.init(Cipher.ENCRYPT_MODE, aesKey);
13            byte[] encrypted = cipher.doFinal(deviceKey);
14            return encrypted;
15        }
16        catch (GeneralSecurityException e) {
17            e.printStackTrace();
18            return null;
19        }
20    }
21}