public byte[] encryptRSA(byte[] array){
try{
Security.addProvider(new BouncyCastleProvider());
PEMReader pemReader = new PEMReader(new StringReader(key));
KeyPair pObj = (KeyPair) pemReader.readObject();
// Encrypt
Cipher cipher = Cipher.getInstance("RSA/NONE/PKCS1Padding");
cipher.init(Cipher.ENCRYPT_MODE, pObj.getPrivate());
return cipher.doFinal(array);