Exchange Ranking
Top Exchanges
24h Volume Ranking
Popularity Ranking
Exchange BTC Balance
Proof of Reserves
Decentralized Exchanges
Funding Rate
Funding Heatmap
Liquidation Data
Max Pain
Long/Short Ratio
Whale L/S Ratio
Binance/Okex/Huobi L/S
Bitfinex Margin L/S
ETF Tracker
Solana ETF
XRP ETF
Hong Kong ETF
Bitcoin Treasuries
Crypto Reversal
Ethereum Reserves
HyperLiquid Wallet Analysis
Hyperliquid Whale Watch
Large Transactions
On-chain Movement
Bitcoin ROI
Stablecoin Market Cap
Options Analysis
News
Articles
Economic Calendar
Features
Wallet
Contract Calculator
Security
Collections
Watchlist
Following
ETH The Ethereum Foundation adjusts its quantum security strategy to abandon the Poseidon hash function
The Ethereum Foundation is adjusting key parts of its subsequent quantum security strategy to abandon the Poseidon hash function in favor of a more widely tested alternative. Researcher Justin Drake announced the news on August 13, pointing to SHA and BLAKE as potential alternatives.
This adjustment influenced the design planning of leanVM, a system designed to help Ethereum process and verify large amounts of blockchain activity more efficiently. Currently, leanVM and similar post-quantum tools are not yet deployed on the Ethereum main network.
Drake attributes this shift to advances in SNARK technology. SNARK is a compact cryptographic proof that confirms whether a calculation occurred without repeating all the underlying work. With the development of SNARK technology, traditional hash functions have been able to efficiently handle the workload originally borne by Poseidon.
Mature alternatives come to the forefront
Drake outlined a rough timetable for the next step. A production-ready version of leanVM is expected to be launched in 2027, while broader deployment of the Ethereum consensus layer, data layer and execution layer is planned for 2028. He also pointed out that both dates are preliminary plans.
Sriram Kanan, founder and CEO of Eigen Labs, said SHA and BLAKE have practical advantages over other post-quantum methods because they have fewer known attack vectors. Both functions have been subject to intense public scrutiny for years, which Kanan believes should allow them to be deployed faster than insufficiently tested alternatives.
Kanan also mentioned that the collaboration between Eigen Labs, the Ethereum Foundation and zero-knowledge certification company Succect has increased certification speed by 2.5 times. This improvement is one of the key factors that makes traditional hash functions a viable alternative to Poseidon in planning systems.
The hash function converts input data into a fixed-length digital fingerprint. The computer uses the fingerprint to check whether the information has been tampered with. Choosing a hash function that can withstand future quantum computer attacks is seen as a fundamental step in Ethereum's long-term security planning.
