A HUGE well done to Matthew Robertson for getting the correct answer to Dean Gould’s code-cracking competition in last month’s magazine. For those who might not have read about this code, here’s a bit of background, the code clues and the coded message itself… see if you can uncrack this baby!
Dean has recently devised the world’s longest uncrackable secret code sent by email. The code has 800 numbers to decode and 1200 jumbled letters. The copyrighted code developed by Dean has been named the Carrington Code – another mystery for people to work out where he got the name from.
Dean said, “Imagine a code that can be used by millions of people whereby each person’s code can be different – with this unique code I’ve devised, no one else would be able to crack anyone else’s code as everyone has a different sequence of secret numbers.”
So how do you encode a message?
Each person has a random number, which can be endless. This number must be long enough to hold all the information in the secret code. This code is in the form of a series of random letters. These are written below a series of random numbers.
For example let’s take the series of numbers as follows: 5728649281736495836274364518462734572
The first 4 letters of your secret code are put in random. For example, “iyek.” Then the first digit of the random number is where the coded message starts. If the message, for example, is Meet Me On Sunday, the “M” is used for the number 5 but there is also another plus (+) number, or minus (-) number, for each digit in your series of numbers. (You can choose what these plus and minus numbers are. Just make sure you write them down). For example, if it is minus -4, you go back 4 places in the alphabet from the letter “M”. This would be the letter “I”, which begins the coded message. You continue in this method moving along the sequence of numbers as they relate to the coded message.
The coded message can be written in groups of letters like below, to make it look like words and make it seem harder to crack.
HRYAG TUJ UIOP BF EWSD JELY
This may all seem complicated but it is a very simple system to use.
When emailing the secret code, only the sender and receiver has that random sequence of numbers. This sequence of numbers is the key to decoding the secret message.
“What?!” (we hear you say).
We know… that’s what we thought when we first read this code, which is what makes Matthew’s feat of mental genius that much more admirable! So readers, see if you can decode the secret message below using an abridged version of his Carrington Code. Here is the code:
XPL VLNBT JLQJ SI VLMJ PB LSXKQ CA DEM LR
Use this number to crack the code.
3 2 4 3 2 4 3 4 5 2
+2 -3 +2 -4 -3 +5 -2 +3 -2 +4
Viola! Too easy! (???!!!)
Enjoy this one, and if you can’t get it, do what we did… get a cuppa and go put your feet up with the pride of having tried! Lol!