Question

我正在使用一种登录方法来检查phpbb安装中的密码和用户名。

我需要做这项工作来解密phpbb加密。

我收到此错误：

    vBulletin.java:139: error: non-static method phpbb_hash(String) cannot be referenced from a static context
                    pass2 = PHPBB3Password.phpbb_hash(password);
                                          ^
1 error

这是我的代码：

returnCodes[1] = group;
String pass2 = "";
if (forum == Type.myBB) {
    pass2 = MD5.MD5(MD5.MD5(salt) + MD5.MD5(password));
} else if (forum == Type.vBulletin) {
    pass2 = MD5.MD5(password);
    pass2 = MD5.MD5(pass2 + salt);
} else if (forum == Type.SMF) {
    pass2 = MD5.SHA((name.toLowerCase()) + password);
} else if (forum == Type.phpBB) {
    pass2 = PHPBB3Password.phpbb_hash(password);
} else if (forum == Type.IPB) {
    pass2 = MD5.MD5(MD5.MD5(salt) + MD5.MD5(password));
}

这是我正在使用的PhpBB：

public String phpbb_hash(String password) {
      String random_state = unique_id();
      String random = "";
      int count = 6;

      if (random.length() < count) {
         random = "";

         for (int i = 0; i < count; i += 16) {
            random_state = md5(unique_id() + random_state);
            random += pack(md5(random_state));
         }
         random = random.substring(0, count);
      }

      String hash = _hash_crypt_private(password, _hash_gensalt_private(random, itoa64));
      if (hash.length() == 34)
         return hash;

      return md5(password);
   }

旧的md5解密器虽然有效但不是最新的：

    public static String MD5(String text)
        throws NoSuchAlgorithmException, UnsupportedEncodingException {
    MessageDigest md;
    md = MessageDigest.getInstance("MD5");
    byte[] md5hash = new byte[32];
    md.update(text.getBytes("iso-8859-1"), 0, text.length());
    md5hash = md.digest();
    return convertToHex(md5hash);
}

更新：遵循某些评论者所说的话：D

    PHPBB3Password.java:18: error: non-static method unique_id() cannot be referenced from a static context
      String random_state = unique_id();
                            ^
PHPBB3Password.java:26: error: non-static method unique_id() cannot be referenced from a static context
            random_state = md5(unique_id() + random_state);
                               ^
PHPBB3Password.java:32: error: non-static variable itoa64 cannot be referenced from a static context
      String hash = _hash_crypt_private(password, _hash_gensalt_private(random, itoa64));
                                                                                ^
PHPBB3Password.java:32: error: non-static method _hash_gensalt_private(String,String) cannot be referenced from a static context
      String hash = _hash_crypt_private(password, _hash_gensalt_private(random, itoa64));
                                                  ^
PHPBB3Password.java:32: error: non-static method _hash_crypt_private(String,String) cannot be referenced from a static context
      String hash = _hash_crypt_private(password, _hash_gensalt_private(random, itoa64));
                    ^
5 errors

Answer 1

如果phpbb_hash使用某些类属性，那么您需要一个PHPBB3Password实例来访问它。所以你会做类似的事情：

pass2 = new PHPBB3Password().phpbb_hash(password);

如果phpbb_hash不使用某些类属性，则应将此方法声明为静态，如下所示：

public static String phpbb_hash(String password) {
...
}

无法从静态上下文引用非静态方法

1 个答案: