Binary Lullaby

hardware FCSC 2025 solved on

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Description

Your friend has encrypted a secret with a very secure integrated circuit. Unfortunately, the decryption functionality of this circuit is broken.

You decide to pay your university to open and then scan this integrated circuit with a scanning electron microscope (SEM). They come back to you a few months later with a netlist of the encryption circuit (netlist.v file) obtained by matching the elementary logic gates of the circuit’s substrate.

The encrypted secret is (one input per line):

0100010100000111
0110010001011000
0100010001110111
0000010001011101
0101011001010001
0100010100010000
0101011000001100
0011001101010111
0001101100111001
0001000001010010
0001101001111001
0111101100110100
0011101001111110
0101010001000111
0010110101110101
0101000000011110
0110010100000110
0101000100010101
0001110101100001

Will you manage to recover this secret?

Files

  • netlist.v
    19.94 KiB – ac5e9a8c07ac998a33c7ce590d05f78d857fba8d13d3f4cfc3741359f084f567

Author

erdnaxe

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DateAuthor Language Tags
2025-04-29
toby-bro
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