Correctly handle CosetEvals in compute_cells()

ethereum · Apr 29, 2024 · 6eb5756 · 6eb5756
1 parent 1cc7e1a
commit 6eb5756
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/specs/_features/eip7594/polynomial-commitments-sampling.md b/specs/_features/eip7594/polynomial-commitments-sampling.md
@@ -470,12 +470,13 @@ def compute_cells(blob: Blob) -> Vector[Cell, CELLS_PER_EXT_BLOB]:
 
     extended_data = fft_field(polynomial_coeff + [0] * FIELD_ELEMENTS_PER_BLOB,
                               compute_roots_of_unity(FIELD_ELEMENTS_PER_EXT_BLOB))
-    extended_data_rbo = CosetEvals(bit_reversal_permutation(extended_data))
+    extended_data_rbo = bit_reversal_permutation(extended_data)
+
     cells = []
     for cell_id in range(CELLS_PER_EXT_BLOB):
         start = cell_id * FIELD_ELEMENTS_PER_CELL
         end = (cell_id + 1) * FIELD_ELEMENTS_PER_CELL
-        cells.append(coset_evals_to_cell(extended_data_rbo[start:end]))
+        cells.append(coset_evals_to_cell(CosetEvals(extended_data_rbo[start:end])))
     return cells
 ```