I do not have much time, so I'll do the best i can with the time i have.

Encryption can be simple, and even those encryptions are enough to "kick-off" 99.9% people that are up to "crack" into your data. For example, simple encryption can be converting all characters to ascii numbers, and possibly reverse them. For example:

this will result in turning variable to:Code:variable = "I'm the king of the world!"; tmp = ""; for (i=1;i<=length(variable);i++) { tmp += ord(substring(variable,i,1)); } variable = tmp;

Not quite nice, right? But there is one little problem, since some chars can be 2 and some 3 numbers in length (some one), it would be pretty hard to extract them back, so, let's change the script to:Code:339109321161041013210710511010332111102321161041013211911111410810033

Now we got:Code:variable = "I'm the king of the world!"; tmp = ""; for (i=1;i<=length(variable);i++) { tmp2 = ord(substring(variable,i,1)); while (length(tmp2) < 3) { tmp2 = "0" + tmp2; } tmp += tmp2; } variable = tmp;

Now it's better, isn't it? OK, so let's twist it even more by reversing it:Code:073039109032116104101032107105110103032111102032116104101032119111114108100033

So we have:Code:tmp = "" for(i=length(variable);i>0;i--) { tmp = substring(variable,i,1) + tmp; } variable = tmp;

Let's complicate it even more... let's add 2 random numbers after each 4 of this string:Code:330001801411111911230101401611230201111230301011501701230101401611230901930370

Now we have:Code:tmp = "" for(i=1;i<=length(variable);i+=4) { tmp = substring(variable,i,4) + random(9) + random(9); } variable = tmp;

which looks quite impossible to crack if you don't know the exact algorythm for this... now, lets complicate itCode:3300550180411411041119211123330101204016821123570201341112053030321011825017250123510101224016041123 180901349303607013evenmore, by reversing this string:

Viola, and we have:Code:tmp = "" for(i=length(variable);i>0;i--) { tmp = substring(variable,i,1) + tmp; } variable = tmp;

Interesting? Those are basic numbers/strings manipulations which looks like impossible to crack. Now let's add locking/unlocking key. For example:Code:3300460180631411211119581123150101524016671123850201641112143030761011815017530123430101164016601123530901779303107057

and let's now apply it to our "encrypted" data, by pattern, 1 number of the key will be added to first 3 numbers, second will be added to second 3 numbers, etc.Code:tmp = "" key = "locked"; // first we will convert it to numbers, because we are talking about pure numeric encryption now for (i=1;i<=length(key);i++) { tmp2 = ord(substring(key,i,1)); while (length(tmp2) < 3) { tmp2 = "0" + tmp2; } tmp += tmp2; } key = tmp;

Now we have:Code:tmp = ""; cnt = 1; for(i=1;i<=length(variable);i+=3) { tmp += substring(variable,i,3).valueOf() + substring(key,cnt,3).valueOf(); cnt += 3; if (cnt == length(key)) { cnt = 1; } } variable = tmp;

This is almost the maximum that you can do with numbers encryption manipulation... you can of course now play with it more to make it more complicated, but i'll leave that to you.Code:3301080871110180990211071411011661001119401123760101634016671123200201631112573030461011625017570123740101184016851123850901739303757038

To get it back, you'll use RE (reverse engineering)... I wont write the script, but it's easy to figure it out... you will just same things, but backwards... you'll first "remove" key (each 3 numbers - current number of key), then you'll reverse it... then you'll remove those random 2 numbers (on each 6 characters, you'll select only first 4), then you'll reverse it again, and then you will convert each 3 characters to ascii string (using chr())... and Viola, you'll get your string back again!

Now i don't have time to write about strong, alpha-numeric encryptions, but if you use your imagination, you can create an unique encryption, which is almost impossible to crack...

So, enjoy protecting your files from "normal mortals" and "want-to-be kiddies"

Cheers, and hope this little lession helps...

(P.S. Hope you are not confused.)