mirror of
https://github.com/logos-blockchain/logos-blockchain-specs.git
synced 2026-01-11 17:43:12 +00:00
58 lines
2.2 KiB
Python
58 lines
2.2 KiB
Python
from dataclasses import dataclass
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from hashlib import sha3_256
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from typing import List, Optional, Generator, Sequence
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from da.common import Certificate, NodeId, BLSPublicKey, Bitfield, build_blob_id, NomosDaG2ProofOfPossession as bls_pop
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from da.encoder import EncodedData
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from da.verifier import DABlob, Attestation
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@dataclass
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class DispersalSettings:
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nodes_ids: List[NodeId]
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threshold: int
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class Dispersal:
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def __init__(self, settings: DispersalSettings):
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self.settings = settings
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# sort over public keys
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self.settings.nodes_ids, self.settings.nodes_pubkey = zip(
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*sorted(zip(self.settings.nodes_ids, self.settings.nodes_pubkey), key=lambda x: x[1])
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)
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def _prepare_data(self, encoded_data: EncodedData) -> Generator[DABlob, None, None]:
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assert len(encoded_data.column_commitments) == len(self.settings.nodes_ids)
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assert len(encoded_data.aggregated_column_proofs) == len(self.settings.nodes_ids)
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columns = encoded_data.extended_matrix.columns
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column_commitments = encoded_data.column_commitments
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row_commitments = encoded_data.row_commitments
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rows_proofs = encoded_data.row_proofs
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aggregated_column_commitment = encoded_data.aggregated_column_commitment
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aggregated_column_proofs = encoded_data.aggregated_column_proofs
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blobs_data = zip(columns, column_commitments, zip(*rows_proofs), aggregated_column_proofs)
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for (column, column_commitment, row_proofs, column_proof) in blobs_data:
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blob = DABlob(
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column,
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column_commitment,
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aggregated_column_commitment,
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column_proof,
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row_commitments,
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row_proofs
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)
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yield blob
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def _send_and_await_response(self, node: NodeId, blob: DABlob) -> bool:
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pass
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def disperse(self, encoded_data: EncodedData):
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attestations = []
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blob_data = zip(
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range(len(self.settings.nodes_ids)),
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self.settings.nodes_ids,
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self._prepare_data(encoded_data)
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)
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for i, node, blob in blob_data:
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self._send_and_await_response(node, blob)
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