Source code Java Enkripsi-Dekripsi AES 256 Base64 (using BoucyCastle)

public static String EncryptAES(SecretKeySpec spec, String input) throws Exception {

byte [] kataSandi = input.getBytes();

String iv = "fc19366826cd8f30";

byte[] ivBytes = iv.getBytes();

IvParameterSpec ivSpec = new IvParameterSpec(ivBytes);

Cipher cipher = Cipher.getInstance("AES/CTR/NoPadding","BC");

cipher.init(Cipher.ENCRYPT_MODE, spec, ivSpec);

byte[] cipherText = cipher.doFinal(kataSandi);

String sandi = new String(Base64.encode(cipherText));

return sandi;

}

public static String DecryptAES(SecretKeySpec spec, String input) throws Exception {

byte[] cipherText = Base64.decode(input);

String iv = "fc19366826cd8f30";

byte[] ivBytes = iv.getBytes();

IvParameterSpec ivSpec = new IvParameterSpec(ivBytes);

Cipher cipher = Cipher.getInstance("AES/CTR/NoPadding","BC");

cipher.init(Cipher.DECRYPT_MODE, spec, ivSpec);

byte[] plainText = cipher.doFinal(cipherText);

String plain = new String(plainText);

return plain;
}