Remove utils/AES.java (#234)

src/main/java/com/rarchives/ripme/utils/AES.java

@@ -1,57 +0,0 @@
-package com.rarchives.ripme.utils;
-
-import java.lang.reflect.Field;
-import java.util.Arrays;
-
-import javax.crypto.Cipher;
-import javax.crypto.SecretKey;
-import javax.crypto.spec.IvParameterSpec;
-import javax.crypto.spec.SecretKeySpec;
-
-class AES {
-
-    /**
-     * Hack to get JCE Unlimited Strenght so we can use weird AES encryption stuff.
-     * From http://stackoverflow.com/a/20286961
-     */
-    static {
-        try {
-            Field field = Class.forName("javax.crypto.JceSecurity").getDeclaredField("isRestricted");
-            if (!field.isAccessible()) {
-                field.setAccessible(true);
-                field.set(null, java.lang.Boolean.FALSE);
-            }
-        } catch (Exception ex) {
-            // Assume it's fine.
-        }
-    }
-
-    public static String decrypt(String cipherText, String key, int nBits) throws Exception {
-        String res = null;
-        nBits = nBits / 8;
-        byte[] data = Base64.decode(cipherText);
-        byte[] k = Arrays.copyOf(key.getBytes(), nBits);
-
-        Cipher cipher = Cipher.getInstance("AES/CTR/NoPadding");
-        SecretKey secretKey = generateSecretKey(k, nBits);
-        byte[] nonceBytes = Arrays.copyOf(Arrays.copyOf(data, 8), nBits / 2);
-        IvParameterSpec nonce = new IvParameterSpec(nonceBytes);
-        cipher.init(Cipher.ENCRYPT_MODE, secretKey, nonce);
-        res = new String(cipher.doFinal(data, 8, data.length - 8));
-        return res;
-    }
-
-    private static SecretKey generateSecretKey(byte[] keyBytes, int nBits) throws Exception {
-        try {
-            SecretKey secretKey = new SecretKeySpec(keyBytes, "AES");
-            Cipher cipher = Cipher.getInstance("AES/ECB/NoPadding");
-            cipher.init(Cipher.ENCRYPT_MODE, secretKey);
-            keyBytes = cipher.doFinal(keyBytes);
-        } catch (Throwable e1) {
-            e1.printStackTrace();
-            return null;
-        }
-        System.arraycopy(keyBytes, 0, keyBytes, nBits / 2, nBits / 2);
-        return new SecretKeySpec(keyBytes, "AES");
-    }
-}