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![]() ![]() This has a risk of devaluating the power of the King’s treasury and ruin our economy. The Goldsmiths are suspected of creating a new, physical currency based on Goat Pieces, the new crypto currency which is becoming popular among citizens. The Kingdom has a money problem and the King requires your assistance for a delicate operation. Three of those challenges involved understanding the behavior of different USB device as seen by a USB packet sniffer. USB PCAP Forensics: Barcode Scanner (NSEC CTF 2021 Writeup, Part 1/3)ĭuring the annual NSec Capture The Flag (CTF), I (partly) solved a really original set of challenges made by Joey Dubé: Goldsmiths’ Guild.
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