feat(bridge): add multi-signature validator enforcement for cross-chain transactions - #340
Merged
LaGodxy merged 2 commits intoApr 28, 2026
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…in transactions Closes MettaChain#203 - Add storage field to PropertyBridge contract - Restrict to registered validators only - Re-validate all signers are still active validators at execution time - Add , , , admin messages - Add ECDSA-based for cryptographic verification - Extend bridge tests to cover threshold enforcement and non-validator rejection
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Summary
Implements the multi-signature validation requirement for cross-chain bridge transactions as described in issue #203.
Changes
validatorsstorage field toPropertyBridge— only accounts in this set may sign bridge requestssign_bridge_requestnow returnsUnauthorizedif the caller is not a registered validatorexecute_bridgere-validates that all collected signatures belong to currently active validators before executionadd_validator,remove_validator,get_validators,is_validatorsign_bridge_request_with_signaturefor optional ECDSA cryptographic signature verificationTesting
cargo test --package propchain-testsAll existing tests pass. New tests added in
contracts/bridge/src/tests.rsandtests/bridge_tests.rs.Closes #203