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Quantum Cryptography Pioneers Win 2025 Turing Award

3/19/2026

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Summary

Story summary

Charles Bennett and Gilles Brassard won the 2025 ACM A.M. Turing Award for developing the BB84 protocol in 1984.
The BB84 protocol enabled encryption keys based on quantum mechanics and made eavesdropping detectable.
Their work laid the foundation for quantum cryptography and has implications for future digital communications.
The Turing Award is often called the Nobel Prize of Computing and carries a $1 million prize.

History

Historical Context

In 1984, Charles Bennett and Gilles Brassard introduced the BB84 protocol, the first quantum key distribution method, which ensures secure communication by detecting eavesdropping. This groundbreaking work built on earlier concepts of quantum conjugate coding proposed by Stephen Wiesner in the 1970s, marking a pivotal advancement in quantum cryptography and influencing modern cybersecurity practices.

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Story summary

Charles Bennett and Gilles Brassard won the 2025 ACM A.M. Turing Award for developing the BB84 protocol in 1984.
The BB84 protocol enabled encryption keys based on quantum mechanics and made eavesdropping detectable.
Their work laid the foundation for quantum cryptography and has implications for future digital communications.
The Turing Award is often called the Nobel Prize of Computing and carries a $1 million prize.

1 / 2