Quantum attacks on Bitcoin , and how to protect against them

  title={Quantum attacks on Bitcoin , and how to protect against them},
  author={Divesh Aggarwal and G. K. Brennen and Troy and Lee and Miklos Santha and Marco Tomamichel},
The key cryptographic protocols used to secure the internet and financial transactions of today are all susceptible to attack by the development of a sufficiently large quantum computer. One particular area at risk are cryptocurrencies, a market currently worth over 150 billion USD. We investigate the risk of Bitcoin, and other cryptocurrencies, to attacks by quantum computers. We find that the proof-of-work used by Bitcoin is relatively resistant to substantial speedup by quantum computers in… CONTINUE READING


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