Starknet has completed a test transfer on mainnet using a quantum-resistant signature mechanism. A wallet account employing the scheme carried out a real transaction with fees of around $0.06, and the transfer can be verified on a block explorer. StarkWare said the account remains experimental and unaudited, intended mainly for research. The milestone was made possible by Starknet's account model, which treats each account as a smart contract. Unlike chains that hard-code signature algorithms at the protocol layer, Starknet accounts can define their own accepted signature schemes. That allows users to upgrade from traditional elliptic curve signatures to quantum-resistant ones without a hard fork, asset migration, or address changes. StarkWare also warned that most blockchains are exposed to quantum computing risks because both wallet signatures and underlying verification rely on elliptic curve cryptography. If a large-scale quantum computer appears, Shor's algorithm could break those systems. Starknet's ecosystem now supports quantum-resistant signatures based on Falcon-512, a scheme within NIST's post-quantum cryptography standardization efforts, with implementations driven by ecosystem teams and OpenZeppelin.
Leveraging a quantum-resistant signature scheme, a Starknet wallet account has executed a real transfer on the mainnet. The transaction cost roughly 6 cents in fees and can be viewed through a block explorer. The account is an experimental, unaudited version, designed for research purposes, StarkWare said.
StarkWare credits the successful test to Starknet's account model. Most blockchains fix signature algorithms at the protocol layer. Starknet, in contrast, treats every account as a smart contract with the ability to define which signature schemes it accepts. As a result, users can shift their wallets from traditional elliptic curve signatures to quantum-resistant ones without a hard fork, without moving assets, and without changing their addresses.
The company also points to a broader risk: most blockchains rely on elliptic curve cryptography both for wallet signatures and for the underlying verification systems. Should a sufficiently large quantum computer emerge, Shor's algorithm could potentially break that encryption.
On the ecosystem side, Starknet already supports quantum-resistant signatures built on Falcon-512, which sits within NIST's post-quantum cryptography standardization framework. The implementations have been advanced by ecosystem teams and organizations including OpenZeppelin.
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