Create README.md

nbctf-2023/itchy-scratchy/README.md

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+# itchy scratchy
+
+## problem
+
+![image](https://github.com/quasar098/ctf-writeups/assets/70716985/901bbbde-bb20-4eae-9592-0c2d98dce34c)
+
+see [itchyscratchy.sb3](./itchyscratchy.sb3)
+
+## solution
+
+easier than the scratch in amateursCTF at least
+
+inside of the body of aatrox, there is this code
+
+![image](https://github.com/quasar098/ctf-writeups/assets/70716985/858fa918-1dc8-4ce4-b6f0-ab730b3d769f)
+
+obviously, the first answer is `isaac newton`
+
+then, it uses a substitution cipher but with the numbers where each number is coordinating to a letter. this letter is stored in alpha, it looks like
+
+![image](https://github.com/quasar098/ctf-writeups/assets/70716985/9862c67b-90e8-4c4f-b1c7-c517b3762312)
+
+so we can get alpha by enabling debugging it in the lists section
+
+![image](https://github.com/quasar098/ctf-writeups/assets/70716985/834afad1-c63d-4018-b068-5fb811d1e2f7)
+
+![image](https://github.com/quasar098/ctf-writeups/assets/70716985/5cbd296a-bd4e-4396-afda-7bd70420f60a)
+
+we can export this list fast by using right click and export
+
+![image](https://github.com/quasar098/ctf-writeups/assets/70716985/6928cbdb-df0d-41eb-9085-5b020c1f75f1)
+
+i also exported the enc list because clearly that's the encrypted flag
+
+alpha list
+```z,v,t,w,r,c,a,5,7,n,4,9,u,2,b,y,1,j,d,q,o,6,g,0,k,s,x,f,i,8,p,e,l,m,h,3```
+
+enc list
+```902,764,141,454,207,51,532,1013,496,181,562,342```
+
+clearly there is a `check` broadcast so we must also check other objects because the (todo do this)