Bitcoin Faces Quantum Threat: New Discoveries Endanger Cryptocurrency Security

February 21, 2025
Bitcoin Faces Quantum Threat: New Discoveries Endanger Cryptocurrency Security
  • This new technology from Microsoft may significantly shorten the time required for quantum attacks on SHA-256 by utilizing Grover's algorithm.

  • Additionally, breakthroughs in manipulating Majorana fermions for processing data with quantum bits (qubits) within the Majorana 1 quantum chip are emerging.

  • In a related development, Microsoft has discovered a new state of matter known as a 'topological superconductor', which could further jeopardize bitcoin's security.

  • As quantum hardware continues to advance, it becomes increasingly vital for cryptographers to devise strategies that will protect bitcoin's long-term security against these quantum threats.

  • Currently, SHA-256 secures bitcoin transactions through unique fingerprints that are challenging to reverse-engineer with classical computers, but this may not hold against future quantum capabilities.

  • The ECDSA protocol connects public addresses to private keys, ensuring a one-way guarantee for valid transactions, but faces significant threats from quantum algorithms like Shor's algorithm.

  • Current bitcoin security is heavily reliant on cryptographic protocols such as SHA-256 and ECDSA, which are increasingly vulnerable to the advancements of quantum computing.

  • Quantum computers have the potential to drastically reduce the brute-force guessing necessary to compromise SHA-256 and ECDSA, putting bitcoin wallets at risk, including those containing large amounts like Satoshi Nakamoto's.

  • There are ongoing discussions within the community about forking Bitcoin Core to bolster its defenses against quantum attacks, with various proposed mechanisms including CRYSTALS algorithms and SPHINCS+.

Summary based on 1 source


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