import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.util.Base64;
public class Base64EncryptionExample {
private static final String KEY = "mySecretKey";
public static String encrypt(String data) {
try {
SecretKeySpec secretKey = new SecretKeySpec(KEY.getBytes(), "AES");
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, secretKey);
byte[] encryptedData = cipher.doFinal(data.getBytes());
return Base64.getEncoder().encodeToString(encryptedData);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
public static String decrypt(String encryptedData) {
try {
SecretKeySpec secretKey = new SecretKeySpec(KEY.getBytes(), "AES");
Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, secretKey);
byte[] decodedData = Base64.getDecoder().decode(encryptedData);
byte[] decryptedData = cipher.doFinal(decodedData);
return new String(decryptedData);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
public static void main(String[] args) {
String data = "Hello, World!";
String encryptedData = encrypt(data);
System.out.println("Encrypted Data: " + encryptedData);
String decryptedData = decrypt(encryptedData);
System.out.println("Decrypted Data: " + decryptedData);
}
}
