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BlockSigner

dig_block::traits

Trait BlockSigner 

Source 
pub trait BlockSigner {
    // Required method
    fn sign_block(
        &self,
        header_hash: &Bytes32,
    ) -> Result<Signature, SignerError>;
}
Expand description

Block header signing hook for [crate::builder::BlockBuilder::build] (SPEC §7.2, BLD-006).

The proposer calls sign_block(&header_hash) at the end of the build pipeline to produce the BLS signature stored in crate::L2Block::proposer_signature.

§Object safety

Same constraints as CoinLookup — &self, no generics, returns concrete types. Box<dyn BlockSigner> is valid for dependency injection.

§Chia parity

Signing uses chia-bls::sign(secret_key, message) internally. The message is the header hash bytes (Bytes32::as_ref() → &[u8; 32]), matching the pattern in chia-blockchain/chia/consensus/block_creation.py where the farmer signs the header hash.

Required Methods§

Source

fn sign_block(&self, header_hash: &Bytes32) -> Result<Signature, SignerError>

Sign the given block header hash, producing a BLS12-381 signature.

Returns SignerError if the key is unavailable or the signing backend fails.

Implementors§