Bennett and Brassard Win Turing Award for Pioneering Quantum Cryptography Protocol BB84
March 18, 2026
Pioneers Charles Bennett and Gilles Brassard are awarded the ACM A.M. Turing Award for developing the BB84 quantum cryptography protocol, a foundational breakthrough in secure quantum communication.
The award carries a $1 million prize funded by Google and is often described as the Nobel Prize in Computing.
Brassard, a University of Montreal computer scientist, and Bennett, an IBM Research physicist in Yorktown Heights, share the prize, marking the first time the Turing Award recognizes work at the intersection of quantum physics and computing.
The story notes that quantum information research has influenced broader physics, including insights into black holes, underscoring the field’s interdisciplinary impact.
Looking ahead, the award highlights directions such as fault-tolerant quantum computing, new quantum algorithms, and long-distance quantum communication via satellites and repeaters.
Industry and government implications emphasize strengthening public-key cryptography against quantum threats and pursuing quantum-resistant approaches.
The article explains quantum information science as a bridge between physics and computer science and references moves toward a quantum internet and long-distance quantum communication.
Their work reframed quantum phenomena from a challenge into a powerful tool, shaping later ideas in quantum computing and teleportation.
Quantum teleportation and quantum cryptography discussions are highlighted as pivotal contributions guiding the move toward a quantum information era.
IBM notes Bennett’s lasting influence on quantum computing, including advances in quantum-centric architectures and plans for scalable machines like Quantum Starling aimed around 2029.
Their research extended from cryptography to quantum teleportation and entanglement distillation, foundational for quantum networks and the envisioned quantum internet.
A landmark 1989 experimental demonstration of quantum key distribution over a short distance showcased feasibility, with later work extending to satellite links.
Summary based on 23 sources
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Sources

The New York Times • Mar 18, 2026
Turing Award Goes to Inventors of Quantum Cryptography
BBC News • Mar 18, 2026
Pair win Turing Award for computer encryption breakthrough
Nature • Mar 18, 2026
Founders of quantum information win top prize in computer science
WIRED • Mar 18, 2026
A Quantum Leap for the Turing Award