Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations Rhinorhino on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
MD5
- Thread starter apatterno
- Start date
There's a Javascript implementation of the algorithm here:
...which you should be able to convert to actionScript as they are broadly similar languages but it may be easier to do the encrypting serverside with PHP (where the function is built-in and very quick) and return the encrypted string to Flash although this does raise security issues I suppose.
...which you should be able to convert to actionScript as they are broadly similar languages but it may be easier to do the encrypting serverside with PHP (where the function is built-in and very quick) and return the encrypted string to Flash although this does raise security issues I suppose.
- Thread starter
- #3
Thanks for the link! I will look into it.
I am doing this to make a flash game, and when the game is over, it sends some variables to a PHP script that tracks High Scores. The problem with that is that anyone can type into their browser highscore.php?s=999999999&n=Hacker and cheat the system.
I was thinking I could also pass an MD5-encrypted string which includes the person's score along with a secret word. For example, the MD5 of "10720jenson". That gets sent as highscore.php?s=10720&n=Legit%20Player&k=3cc4c497248830887bd731f967fbe2cf. The PHP script verifies that the score claimed is in accord with the MD5 sum. I think that works because nobody knows how to generate the proper MD5 sum, since they don't know the secret word.
But thanks for the algorithm!
I am doing this to make a flash game, and when the game is over, it sends some variables to a PHP script that tracks High Scores. The problem with that is that anyone can type into their browser highscore.php?s=999999999&n=Hacker and cheat the system.
I was thinking I could also pass an MD5-encrypted string which includes the person's score along with a secret word. For example, the MD5 of "10720jenson". That gets sent as highscore.php?s=10720&n=Legit%20Player&k=3cc4c497248830887bd731f967fbe2cf. The PHP script verifies that the score claimed is in accord with the MD5 sum. I think that works because nobody knows how to generate the proper MD5 sum, since they don't know the secret word.
But thanks for the algorithm!
- Thread starter
- #4
I have a question about Flash strings and the JavaScript code
Does Flash use Unicode or ASCII? In the help files, it claims to use Unicode, but in my experience whenever I paste Unicode text into the ActionScript window, all I get is a bunch of question marks.
Code:
var chrsz = 8; /* bits per input character. 8 - ASCII; 16 - Unicode */Does Flash use Unicode or ASCII? In the help files, it claims to use Unicode, but in my experience whenever I paste Unicode text into the ActionScript window, all I get is a bunch of question marks.
- Status