垫块损坏解密音频记录数据时发生异常

Question

我正在使用以下功能在一个Android设备中加密音频数据

private byte[] encrypt(byte[] plaintext) throws Exception
{
    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
    SecretKeySpec keySpec = new SecretKeySpec(privateKeyByte, 0, privateKeyByte.length,"AES");
    IvParameterSpec ivSpec = new IvParameterSpec(IV);
    cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec);
    byte[] cipherText = cipher.doFinal(plaintext);
    return cipherText;
}

并使用以下

在另一个Android设备上解密

    private byte[] decrypt(byte[] cipherText)
{
    try {
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
        SecretKeySpec keySpec = new SecretKeySpec(privateKeyByte, 0, privateKeyByte.length, "AES");
        IvParameterSpec ivSpec = new IvParameterSpec(IV);
        cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);
        return cipher.doFinal(cipherText);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

正在抛出填充块损坏异常。我究竟做错了什么？我非常确定这两个设备的键和IV都相同。