The QuantumEVM undertaking redesigned the Ethereum Digital Machine to be quantum-shielded.
In Ethereum there have been proposals to make use of 32-byte addresses, however they haven’t proliferated.
QuantumEVM, a Layer 1 chain suitable with the Ethereum Digital Machine (EVM) and designed with quantum resistance from the bottom up, launched its testnet (testnet) public this March 17, as defined by Ian Smith, CEO and technical director of the undertaking.
The primary objective of QuantumEVM is to allow Ethereum ecosystem constructions (decentralized purposes, good contracts, and so on.) simply migrate to a community that goals to be safe in opposition to post-quantum threatswith out dropping compatibility with present instruments, similar to wallets.
The supervisor introduced that the staff needed to fully redesign the EVM’s reminiscence structure in order that QuantumEVM is proof against quantum pc assaults.
The central change is the migration of 20-byte addresses, the Ethereum normal and all supported networks, to 32 byte addresses.
The CEO additionally clarified that QuantumEVM runs on Cellframe, an open supply base community aimed toward scalability and post-quantum safety, makes use of the proof-of-stake (PoS) consensus mechanism and permits purposes and good contracts to be migrated from Ethereum virtually straight, whereas sustaining compatibility with the EVM normal.
Moreover, Smith assures that QuantumEVM will use post-quantum cryptography (PQC), though neither he nor the undertaking documentation specify which particular algorithm they’ll implement.
The undertaking paperwork do state that the technique is “hybrid and configurable”: The system lets you use a number of key schemes and select between them by configuration recordsdata, with the goal of facilitating fast migrations within the occasion of future quantum assaults.
In accordance with Smith, within the subsequent “three months” the undertaking will incorporate full homomorphic encryption (FHE), which permits information to be processed with out decrypting it, and PQC acceleration by graphics processing models (GPUs).
Why is 20 bytes not sufficient?
Ethereum addresses are 160 bits (20 bytes) and are generated utilizing hash features. As defined by Smith, that dimension is weak to the BHT (Brassard-Høyer-Tapp) algorithm, a 1997 quantum technique designed to search out collisions in hash features.
For 20-byte addresses, in accordance with the QuantumEVM government, the BHT would require roughly 10¹⁶ quantum operations to discover a collision and violate these addresses, that’s, two completely different inputs that produce the identical deal with, and probably entry different folks’s funds with out having to steal personal keys.
In accordance with Smith, the chance is larger in Ethereum than in Bitcoin. Sensible contract addresses in EVM networks are generated utilizing a hash plus a nonce, which would produce an easier, simpler to assault quantum circuit. Bitcoin, then again, derives its addresses by a non-public key, a public key and two completely different hash features, which makes the circuit obligatory for the assault extra complicated.
The answer carried out by QuantumEVM is transfer to 256-bit (32-byte) addresses. At that dimension, the identical BHT assault would require about 2⁸⁵ operations, Smith estimated, a threshold that will be infeasible in observe.
Might Ethereum apply the identical resolution?
Technically, sure. Since 2021 there was a debate thread on Ethereum Magicians, the reference discussion board for Ethereum builders, concerning the migration of addresses from 20 to 32 bytes, though the final remark occurred in August 2025, which might point out that there can be different priorities within the Ethereum ecosystem.
The proposals embody new opcodes for producing 32-byte addresses and compatibility mechanisms with present contracts.
The impediment isn’t technical however structural. Nearly your complete Ethereum ecosystem, contracts underneath the ERC-20 and ERC-721 requirements, wallets, exchanges, indexers and bridges, assumes 20-byte addresses.
Migrating would suggest a massive scale onerous forka brand new era of addresses and compression mechanisms to keep up compatibility with legacy contracts. As of March 2026, there is no such thing as a formal proposal in progress or outlined date for that transition.
Different options and roadmap
Along with the deal with redesign, Smith described different capabilities of the QuantumEVM community. Transactions observe a strict first-come, first-served foundation, which the staff says eliminates the potential of validators reordering operations to extract worth on the expense of customers, a observe referred to as MEV (most extractable worth).
Moreover, the price of gasoline is fastened in greenback phrases and varies inversely to the worth of the native QEVM token. The undertaking additionally has a bridge to Ethereum and BNB Sensible Chain.
In accordance with the revealed roadmap, within the first quarter of 2026 the undertaking contemplates the general public sale of the token, the itemizing on centralized exchanges and the beginning of its first safety audit.
Lastly, for the second quarter it initiatives the launch of the mainnet, staking, full availability of the EVM and DeFi instruments. Within the third quarter it plans to launch wallets for Android and iOS.
