Ethereum Developers Propose Quantum-Resistant Deposit Contract

Ethereum developers have proposed a new version of the deposit contract that is designed to be resistant to quantum attacks.

The current deposit contract uses BLS (Boneh-Lynn-Shacham) cryptography, but the new proposal would allow for the use of post-quantum algorithms without requiring significant changes to the infrastructure.

The proposed contract would accept public keys and additional metadata as variable-length fields, with a separate numerical code identifying the cryptographic scheme used. The current BLS standard would be assigned the identifier Scheme 0.

The document does not specify a particular post-quantum implementation, but rather lays the groundwork for its future adoption.