Co-founder of Ethereum, Vitalik Buterin, wrote an article on the 9th stating that in the event of a quantum computer attack on Ethereum, the crisis can be resolved through a recovery fork. Under this plan, Ethereum would need to undergo a hard fork, and users would also need to download new wallet software. However, only a small number of users may lose their funds.
The current state of blockchain may seem difficult to crack, but there have always been concerns in the market that with the advent of quantum computers, existing cryptographic algorithms used in cryptocurrencies such as SHA-256 for Bitcoin and Keccak-256 for Ethereum can be broken. Quantum computers will be able to steal or forge cryptocurrencies, posing a significant threat to their security.
However, Vitalik Buterin, co-founder of Ethereum, discussed in a post titled “How to Rescue User Funds from a Sudden Quantum Attack Through Hard Fork” on the Ethereum research forum on the 9th that if Ethereum were to suddenly encounter a quantum computer attack, the crisis could be resolved through a relatively simple recovery fork:
According to Vitalik Buterin, the solution for a recovery fork involves the following steps:
1. Roll back all blocks that occurred after the large-scale attack.
2. Disable traditional transactions based on externally owned account (EOA) addresses.
3. Add a new transaction type to allow transactions through smart contract wallets (part of RIP-7560).
4. Add new transaction types or opcodes to allow users to provide STARK validity proofs. If the proofs pass, the user address code will switch to a completely new validated code, and then the user can use the new code address as a smart contract wallet.
Vitalik Buterin added that, for the sake of saving Gas, Ethereum can support batch STARK proofs to simultaneously perform multiple types of STARK proofs mentioned above.
Vitalik Buterin concluded by urging developers to start developing the necessary infrastructure for implementing this recovery fork as soon as possible, so that the Ethereum ecosystem can be fully prepared for a sudden quantum attack.
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