#AI Why does quantum computing pose a threat to Bitcoin?
1. Public encryption keys:
• Bitcoin relies on the ECDSA (Elliptic Curve Digital Signature Algorithm) digital signature algorithm.
• If a powerful quantum computer obtains a public key, it could theoretically deduce the private key using Shor’s Algorithm, enabling it to control the address and steal coins.
2. Vulnerability of exposed addresses:
• Any address used to transfer coins becomes public, and thus vulnerable to a future quantum attack.
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⏳ Why is the risk real within 5 years?
• We are still far from quantum devices capable of actually breaking ECDSA, but:
• Advancements in qubit research are ongoing rapidly.
• Some estimates suggest that around 1500 - 2000 logical qubits are needed to break the private key.
• Major companies like IBM$BTC