Chinese researchers claim to have used D-Wave's quantum annealing systems to develop a substantial attack on classical encryption, raising concerns about public key cryptography's viability.
The researchers, led by Wang Chao from Shanghai University, assert their method demonstrates a tangible risk to Substitution-Permutation Network (SPN) structures that underpin widely employed encryption standards.
The study describes this as 'the first time that a real quantum computer has posed a real and substantial threat to multiple full-scale SPN structured algorithms in use today.'
The implications of this work suggest a significant need for reconsideration of current public key and symmetric cryptographic systems, emphasizing the urgency of developing quantum-resistant algorithms.
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