Ethereum Prioritizes Post-Quantum Security Amid Fee Concerns

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Ethereum has elevated post-quantum cryptography to a top strategic priority, forming a dedicated team led by Thomas Coratger and announcing $1 million in prizes to strengthen hash-based primitives. This proactive move demonstrates Ethereum's commitment to long-term security, positioning it ahead of potential quantum computing threats that could compromise current cryptographic standards.
However, the initiative faces significant practical challenges. New post-quantum signatures are reportedly 40x larger than current ones, potentially crushing network throughput and dramatically increasing user transaction costs. This comes as a16z crypto published a roadmap suggesting quantum threats may be overstated, warning that premature migrations risk trading known security for unproven solutions. The tension between future-proofing and present-day usability creates a complex optimization problem for Ethereum developers.
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