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Daniel Johnson

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Senior Research Fellow

Daniel Johnson holds a PhD in Applied Mathematics from Carleton University (2025) as a post-quantum cryptology researcher currently working with 01 Quantum and the NC-CIPSeR lab at Carleton. His doctoral work produced strong results in the cryptanalysis of knapsack primitives – including the discovery of the Lattice Reconstitution Attack (LRA), which breaks the HPPK KEM in under one second with deterministic success, and an LRA-variant that matched the world record for cracking the 1978 Merkle-Hellman scheme. Daniel has also developed novel attacks against NTRU and NTRU Prime, tested on national supercomputing infrastructure. Since completing his doctorate, he now studies Fully Homomorphic Encryption as applied to AI models, while also further developing attacks against lattice-based primitives. A University Medal recipient in Mathematics from his undergraduate years at Carleton, Daniel brings equal passion for solving hard problems and making complex ideas accessible to others.

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