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verify_refresh_preserves_aggregate

confium_tc::reshare::refresh

Function verify_refresh_preserves_aggregate 

Source 
pub fn verify_refresh_preserves_aggregate(
    party_zero_contributions: &[RefreshContribution],
) -> bool
Expand description

Verify that a refresh round preserves the aggregate secret.

For correct refresh polynomials: sum_i f_i(0) == 0 for all parties. This check validates that invariant.