The Solfa Cipher (NSEC17 Write-Up)

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The Solfa Cipher Between May 19th and 21st, 2017, I’ve participated in┬áthe NSEC 17 Capture-the-Flag (CtF) event held annually in Montreal, QC. As usual, the team and I had a blast spending days and nights solving challenges and drinking free beer. Among the challenges was a two-part cryptographic puzzle printed on the first and last […]