a6-integer-regression {ctfepi}sealed case file
Integer Regression
Case A6, The Cipher DrawerLinear Algebra and Numerical Methodsscene 2medium200 pts
Case
Marlow encrypted his private notes with matrices. Decoding them is how you earn his trust.
What this scene will ask
OLS coefficients are integers by construction and index a codebook.
Planned flag: the decoded phrase; residual sum of squares, 2 dp.
Status
[#] Sealed. This scene opens when it is written and passes review. Nothing on CTFEpi expires, so there is no rush.