Google Claims Quantum Computing May Crack Bitcoin Encryption Sooner Than Expected
Google warns that quantum computers may crack Bitcoin encryption sooner than expected, posing a significant threat to the security of cryptocurrencies. The company is urging the industry to adopt quantum-resistant technologies and is committing to a comprehensive overhaul of its own systems by 2029.
Google's Quantum AI researchers have cautioned that breakthroughs in quantum hardware could enable attacks on the cryptographic safeguards protecting most cryptocurrencies. The concern is centered around elliptic curve cryptography, which relies on the difficulty of solving a specific discrete logarithm problem. However, quantum machines could theoretically shatter this protection. Google's analysis reveals that optimized quantum circuits would need fewer than 1,200 to 1,450 logical qubits to crack the encryption. The company is advocating for a shift to post-quantum cryptography (PQC) and is reaching out to key players in the industry to foster coordinated dialogue. Wallet holders are advised to avoid reusing addresses once funds have been spent to limit exposure to potential attacks.
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