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Fix type error in the inputs to hash_to_bls_field() #3077

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Nov 3, 2022
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Fix type error in the inputs to hash_to_bls_field() #3077

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7 changes: 5 additions & 2 deletions specs/eip4844/polynomial-commitments.md
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Original file line number Diff line number Diff line change
Expand Up @@ -346,13 +346,16 @@ def compute_aggregated_poly_and_commitment(
Return (1) the aggregated polynomial, (2) the aggregated KZG commitment,
and (3) the polynomial evaluation random challenge.
"""
# Convert blobs to polynomials
polynomials = [blob_to_polynomial(blob) for blob in blobs]

# Generate random linear combination challenges
r = hash_to_bls_field(blobs, kzg_commitments)
r = hash_to_bls_field(polynomials, kzg_commitments)
r_powers = compute_powers(r, len(kzg_commitments))
evaluation_challenge = int(r_powers[-1]) * r % BLS_MODULUS

# Create aggregated polynomial in evaluation form
aggregated_poly = Polynomial(poly_lincomb([blob_to_polynomial(blob) for blob in blobs], r_powers))
aggregated_poly = Polynomial(poly_lincomb(polynomials, r_powers))

# Compute commitment to aggregated polynomial
aggregated_poly_commitment = KZGCommitment(g1_lincomb(kzg_commitments, r_powers))
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