StringObfuscator

App.md

StringObfuscator

StringObfuscator.java

package com.string.utils;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.Base64;

public class StringObfuscator {

    private StringObfuscator() {}

    public static String obfuscate(String input) {
        String b64str = Base64.getEncoder().encodeToString(encodeURIComponent(input.toLowerCase()).getBytes());
        b64str = b64str.replace("+", "").replace("=", "").replace("/", "");
        Integer sum = 0;
        int index = 0;
        for (int i = 0; i < b64str.length() - 4; i += 4) {
            sum += Integer.parseInt(b64str.substring(i, i + 4), 36);
            index = i + 4;
        }
        sum += Integer.parseInt(b64str.substring(index), 36);
        return Integer.toString(sum, 36);
    }

    public static String encodeURIComponent(String s) {
        String result = null;
        try {
            result = URLEncoder.encode(s, "UTF-8").replaceAll("\\+", "%20").replaceAll("\\%21", "!").replaceAll("\\%27", "'").replaceAll("\\%28", "(").replaceAll("\\%29", ")").replaceAll("\\%7E", "~");
        } catch (UnsupportedEncodingException e) {
            result = s;
        }
        return result;
    }
  
}

StringObfuscator.js

function obfuscate(str) {
    if (!str) {
        throw new Error("Invalid string input specified.");
    }
    let _str = btoa(encodeURIComponent(str.toLowerCase()));
    _str = _str.replace(/\//g, "").replace(/\+/g, "").replace(/\=/g, "");
    let _sum = 0;
    for (let i = 0; i < _str.length; i += 4) {
        _sum += parseInt(_str.substr(i, 4), 36);
    }
    return _sum.toString(36);
}