English [MITRE STEM 2015] [Crypto 50 – Holy Krabby Patty, Mermaid Man!] Write Up


We were given the following instructions :

Oh no! Mermaid Man has left his belt at the Krusty Krab. You fully intend to return the belt to him, but first you want to enjoy a Ceaser Salad. Because you don’t want to get any food on the belt, you set it next to you. After finishing the salad, you notice that the belt is now gone and replaced with a note. What does the note say?

With the next cipher :

C qogvi. Sio qogvi. By- mby- gy… qogvi. Qogvi; Qogvicha; Qy’ff bupy nbyy qogvi; Qogvilugu; Qogvifias; nby mnoxs iz Qogvi. Cn’m zclmn aluxy, Mjihayviv! GWU-UW56X5YU


As sugested in the instructions it’s a Ceaser encryption with a right shift of 20.

Plain text :

I wumbo. You wumbo. He- she- me… wumbo. Wumbo; Wumboing; We’ll have thee wumbo; Wumborama; Wumbology; the study of Wumbo. It’s first grade, Spongebob! MCA-AC56D5EA



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