im trying to implement an encryption system to my game to protect players passwords and other game data.
i've come up with a little test to get used to the logic of it all.
i just want to know the best way to go about this im pretty decent with reading java and searching for logic that i need (and finding a way to write it). so with that being said im not exactly looking for some snippet that will perfectly fit my game. im just looking for WAY better logic then what i have.
this only works for 4 characters sadly.
heres what i know so far
import java.util.Random;
public class EncodingThenDecoding {
private String stringToHash;
private boolean running = false;
private String originalString;
private String encodedString;
private boolean decoding = false;
public EncodingThenDecoding() {
init();
}
public void initInit() {
running = true;
encodeString("abcd");
System.out.println("Original String: " + originalString);
delay();
decodeStrings();
}
private void encodeString(String sth) {
String[] subStrings = new String[25];
originalString = sth;
for(int subStr = 0;subStr < sth.length();subStr++ ) {
subStrings[subStr] = sth.substring(subStr);
}
for(int i = 0;i < sth.length();i++) {
Random ran = new Random();
StringBuilder encoder = new StringBuilder();
encoder.append( (char)('a' + ran.nextInt('z'-'a')));
subStrings[i] = encoder.toString();
//System.out.println(subStrings[i]);
}
sth = subStrings[0] + subStrings[1] + subStrings[2] + subStrings[3];
encodedString = sth;
System.out.println(sth);
delay();
}
private void decodeString() {
int tries = 0;
int ii = 0;
running = true;
long sd = System.nanoTime();
long minutes = 0;
while(running) {
tries++;
String strToDecode = encodedString;
String[] usedDecodedStrings = new String[1000000];
String[] decodedSubStrings = new String[25];
String decodedString = null;
//store hashed string's chars into an array.
for(int i = 0; i < strToDecode.length();i++) {
decodedSubStrings[i] = strToDecode.substring(i);
}
//stores a random letter between z-a and replaces the array items above.
for(int i = 0;i < decodedSubStrings.length;i++) {
Random ran = new Random();
StringBuilder encoder = new StringBuilder();
encoder.append( (char)('a' + ran.nextInt('z'-'a')));
decodedSubStrings[i] = encoder.toString();
}
//stores the string containing all the new characters assigned above,
decodedString = decodedSubStrings[0] + decodedSubStrings[1] + decodedSubStrings[2] + decodedSubStrings[3];
long nanoseconds = System.nanoTime() - sd;
long miliseconds = nanoseconds/1000000;
long seconds = miliseconds/1000;
System.out.println("its been " + seconds + " seconds");
if(decodedString.equalsIgnoreCase(originalString)) {
System.out.println("Decoding username was succesful!");
System.out.println("it took " + seconds/60 + " minutes and " + tries + " tries to Decode " + strToDecode + " back into " + originalString);
return;
}
else if(!decodedString.equalsIgnoreCase(originalString)) {
System.out.println("Attempt #" + tries + ": " + decodedString);
}
}
}
public void delay() {
try {
Thread.sleep(3000);
}
catch(InterruptedException e) {
}
}
public static void main(String[] args) {
EncodingThenDecoding encryptThenDecrypt = new EncodingThenDecoding();
}
}
Heres an example of the output
its been 1386 seconds
Attempt #339016: bsev
its been 1386 seconds
Attempt #339017: qycu
its been 1386 seconds
Decoding username was successful!
it took 23 minutes and 339018 tries to Decode vlbc back into abcd
