static String RC4(String keys, String encrypt) {

        char[] keyBytes = new char[256];

        char[] cypherBytes = new char[256];

        for (int i = 0; i < 256; ++i) {

            keyBytes[i] = keys.charAt(i % keys.length());

            cypherBytes[i] = (char) i;

        }

        int jump = 0;

        for (int i = 0; i < 256; ++i) {

            jump = (jump + cypherBytes[i] + keyBytes[i]) & 0xFF;

            char tmp = cypherBytes[i]; // Swap:

            cypherBytes[i] = cypherBytes[jump];

            cypherBytes[jump] = tmp;

        }

        int i = 0;

        jump = 0;

        String Result = "";

        for (int x = 0; x < encrypt.length(); ++x) {

            i = (i + 1) & 0xFF;

            char tmp = cypherBytes[i];

            jump = (jump + tmp) & 0xFF;

            char t = (char) ((tmp + cypherBytes[jump]) & 0xFF);

            cypherBytes[i] = cypherBytes[jump]; // Swap:

            cypherBytes[jump] = tmp;

            try {

                Result += new String(new char[] { (char) (encrypt.charAt(x) ^ cypherBytes[t]) });

            } catch (Exception e) {

                e.printStackTrace();

            }

        }

        return Result;

    }