Friday, 8 November 2013

cipher - The case of the strange coffee



When you figure out that the guy speaking Gibberish meant



I am Hagey



you go back to the restaurant the following day, and hope for the best. When you walk in you notice the man who said the Gibberish in the first place but not the other man. After you order your food and start eating you hear the door bell chime and see the other man walk in and sit down. You hear him say something but it's not all that clear...


...something to do with, coffee? Anyways after he says that he starts spouting random numbers all over the place and then leaves. As soon as you hear him talking you got your notepad ready and after he finished you got this:


78 79 87 32 84 72 65 84 32 87 69 32 75 78 79 87 32 89 79 85 32 65 82 69 32 80 82 79 70 69 83 83 79 82 32 72 65 71 69 89 32 87 69 67 65 78 32 71 73 86 69 32 89 79 85 32 84 72 69 32 66 79 88 190


It's up to you to solve it. Can you do it?


Hint:




What the man said before he said the numbers was: "did you know you can program with coffee"?




Answer



Decrypting the cipher we get



using decimal to ASCII: "NOW THAT WE KNOW YOU ARE PROFESSOR HAGEY WE CAN GIVE YOU THE BOX."

There are a few mistakes in the encoding: there's a space missing between "WE" and "CAN", a space missing between the two "83"s that make up the Ss in PROFESSOR, and the last character (a period) should be encoded as 46. The rest matches up with the intended plaintext.



OP points out in comments that the intended encoding was actually



Javascript keycodes. Most of them match up with their ASCII counterparts, but the period is in fact encoded as 190 in this encoding.




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