};
let mut part_a = revocation_base_point.clone();
part_a.mul_assign(&secp_ctx, &rev_append_commit_hash_key)?;
let mut part_b = per_commitment_point.clone();
part_b.mul_assign(&secp_ctx, &commit_append_rev_hash_key)?;
};
let mut part_a = revocation_base_point.clone();
part_a.mul_assign(&secp_ctx, &rev_append_commit_hash_key)?;
let mut part_b = per_commitment_point.clone();
part_b.mul_assign(&secp_ctx, &commit_append_rev_hash_key)?;