Module integrity 

Share integrity verification — validates shares before use.

Corrupted shares cause signing failures that are hard to diagnose. This module validates share structure, scalar range, party index bounds, and public key format before the share enters the signing pipeline.

Enums

IntegrityIssue

A specific integrity issue found in a share.

IntegrityResult

Result of integrity checking.

Functions

check_share

Check the integrity of a normalized share. Returns Valid if all checks pass, or Invalid with a list of issues.

is_valid

Quick boolean check — returns true if the share is valid.