BEvFhsu3

1import java.io.File;
2import java.io.FileInputStream;
3import java.io.FileOutputStream;
4import java.nio.file.Path;
5import java.security.Key;
6import java.security.Provider;
7import java.security.SecureRandom;
8import java.security.Security;
9import java.security.Provider.Service;
10import java.util.Base64;
11import java.util.Set;
12import java.util.TreeSet;
13
14import javax.crypto.Cipher;
15import javax.crypto.KeyGenerator;
16import javax.crypto.SecretKey;
17import javax.crypto.spec.IvParameterSpec;
18
19public class Main {
20
21	public static void main(String[] args) {
22		/*Set<String> algs = new TreeSet<>();
23		for (Provider provider : Security.getProviders()) {
24			provider.getServices().stream()
25			.filter(s -> "Cipher".equals(s.getType()))
26			.map(Service::getAlgorithm)
27			.forEach(algs::add);
28		}
29		algs.forEach(System.out::println);*/
30		SecretKey key  = generateKey("AES", 128);
31		byte[] rawData = key.getEncoded();
32		System.out.println(Base64.getEncoder().encodeToString(rawData));
33		encryptFile("AES", key, Path.of("/storage/emulated/0/Download/hud_screen.json").toFile(), Path.of("/storage/emulated/0/Download/hud_screen_obf.json").toFile());
34	}
35
36	public static void encryptFile(String algorithm, SecretKey key, File inputFile, File outputFile) {
37		try {
38			Cipher cipher = Cipher.getInstance(algorithm);
39			//Key ke = cipher.unwrap(cipher.wrap(key), algorithm, Cipher.SECRET_KEY);
40			cipher.init(Cipher.ENCRYPT_MODE, key);
41			FileInputStream inputStream = new FileInputStream(inputFile);
42			FileOutputStream outputStream = new FileOutputStream(outputFile);
43			byte[] buffer = new byte[64];
44			int bytesRead;
45			while ((bytesRead = inputStream.read(buffer)) != -1) {
46				byte[] output = cipher.update(buffer, 0, bytesRead);
47				if (output != null) {
48					outputStream.write(output);
49				}
50			}
51			byte[] outputBytes = cipher.doFinal();
52			if (outputBytes != null) {
53				outputStream.write(outputBytes);
54			}
55			inputStream.close();
56			outputStream.close();
57		} catch (Exception e) {
58			e.printStackTrace();
59		}
60	}
61
62	public static SecretKey generateKey(String algoritm, int size) { //size (128, 192, and 256)
63		try {
64			KeyGenerator keyGenerator = KeyGenerator.getInstance(algoritm);
65			keyGenerator.init(size);
66			SecretKey key = keyGenerator.generateKey();
67			return key;
68		} catch (Exception e) {
69			return null;
70		}
71	}
72}