Have you ever needed to send letter's and messages that are on strict a need to know basis, But your not quite sure how secure they are? Well today I'll be showing you a series of codes and ciphers that will be sure to keep out even the sneakiest of eye's, Some of them are simple and others are more difficult to crack! But what ever one you choose, You're secrets are no longer on constant alert, So let's begin!
Step 1: The Caesar Shift Cipher
This one is a simple alphabet cipher, But it's tricky to break without the right key, Each letter is moved along by a number let's say 5 for right now, So A would become F, J becomes O, Z becomes E and so on. The number is the key to the cipher here, So you could agree on a number before hand and then send messages afterward, Then only the people with that number can read the messages.
So for example "Meet me at the park" would become "RJJY RJ FY YMJ UFWP" with the number 5 as the key.
For the first cipher it works well, but the problem is that there are only 25 possible combinations (26 would take you back to the letter you started with). As a result, if there was someone who really wanted to break the code they could simply pold there way thruogh all 25 combinations. Admittedly, they would have to know in the first place that it is the Caesar shift cipher, So this only get's a difficulty of 1 star, It's over 2,000 year's old, after all.