{
  "chain_slug": "sui",
  "name": "Sui",
  "scorecard_profile": "L1",
  "evaluated_at": "2026-04-17",
  "evaluator": "layerqu-v2-scoring-agent-5",
  "v1_reference": "chainscreen-v1-archive",
  "dimensions": {
    "1_cryptographic_exposure": {
      "weight": 0.15,
      "score": 38,
      "sub_scores": {
        "1a_primitive_inventory": {
          "score": 14,
          "primitives_named": [
            "Ed25519 (default)",
            "ECDSA secp256k1",
            "ECDSA secp256r1 (P-256)",
            "BLS12-381 (aggregation)",
            "SHA-3 / Blake2b (hashing)"
          ],
          "evidence": [
            "v1:chainscreen-v1-archive/data/chains/sui.json"
          ],
          "note": "Multi-scheme signature support native in Move."
        },
        "1b_shor_grover_pq_tag": {
          "score": 8,
          "tags": {
            "Ed25519": "Shor-break",
            "ECDSA secp256k1": "Shor-break",
            "ECDSA secp256r1": "Shor-break",
            "BLS12-381": "Shor-break"
          },
          "evidence": []
        },
        "1c_algorithm_family_diversity": {
          "score": 6,
          "families_represented": 0,
          "families": [],
          "note": "Multiple elliptic-curve families but no PQ family deployed."
        },
        "1d_nist_security_category": {
          "score": 4,
          "mappings": {
            "Ed25519": "128-bit classical",
            "BLS12-381": "128-bit classical"
          },
          "evidence": []
        },
        "1e_implementation_quality": {
          "score": 6,
          "formal_verification": "Move Prover; Sui Framework audited (MystenLabs + external)",
          "constant_time": "standard",
          "libraries": [
            "sui-node (Rust)",
            "fastcrypto"
          ],
          "evidence": []
        }
      },
      "total_artifacts": 1
    },
    "2_hndl_exposure": {
      "weight": 0.1,
      "score": 35,
      "sub_scores": {
        "2a_active_key_exposure": {
          "score": 8,
          "note": "Pubkeys exposed on first tx. ~28 months mainnet age."
        },
        "2b_cold_key_exposure": {
          "score": 10,
          "note": "Younger chain; smaller dormant surface. MystenLabs / SUI Foundation holdings classical."
        },
        "2c_signature_longterm_validity": {
          "score": 9,
          "note": "Multi-scheme but all classical; historical sigs Shor-forgeable."
        },
        "2d_encryption_confidentiality": {
          "score": 8,
          "note": "Standard TLS; no PQ KEM observed."
        }
      },
      "total_artifacts": 1
    },
    "3_metadata_privacy_exposure": {
      "weight": 0.13,
      "score": 30,
      "sub_scores": {
        "3a_tx_graph_visibility": {
          "score": 7,
          "note": "Transparent ledger; object-centric model exposes ownership graph."
        },
        "3b_rpc_mempool_concentration": {
          "score": 8,
          "note": "MystenLabs RPC, BlockVision, Shinami concentration."
        },
        "3c_cross_chain_bridge_correlation": {
          "score": 8,
          "note": "Wormhole, LayerZero bridges correlate addresses."
        },
        "3d_retroactive_deanon_risk": {
          "score": 7,
          "note": "No shielded pools; transparent-inference risk."
        }
      },
      "total_artifacts": 1
    },
    "4_migration_architecture": {
      "weight": 0.1,
      "score": 55,
      "sub_scores": {
        "4a_crypto_agility": {
          "score": 16,
          "note": "Multi-scheme signature support (Ed25519/secp256k1/secp256r1/BLS) shows in-protocol agility; adding ML-DSA requires protocol upgrade but type-system is prepared."
        },
        "4b_account_abstraction_key_rotation": {
          "score": 14,
          "note": "zkLogin + Passkeys + Move object-centric accounts allow some migration; not full AA parity."
        },
        "4c_hard_fork_track_record": {
          "score": 14,
          "note": "Regular protocol upgrades; smooth coordination with validators."
        },
        "4d_hybrid_deployment_readiness": {
          "score": 11,
          "note": "Truncator research (MystenLabs) on signature compression suggests PQ literacy; no shipped hybrid."
        }
      },
      "total_artifacts": 1
    },
    "5_deployment_execution": {
      "weight": 0.22,
      "score": 12,
      "sub_scores": {
        "5a_mainnet_pqc_pct": {
          "score": 0,
          "mainnet_pqc_pct": 0,
          "evidence": [],
          "note": "Zero PQC on mainnet. Mosca cap triggers."
        },
        "5b_pqc_code_in_client": {
          "score": 3,
          "note": "fastcrypto is extensible; no ML-DSA/Falcon merged."
        },
        "5c_validator_pqc_adoption": {
          "score": 0,
          "note": "Zero PQ validators."
        },
        "5d_published_milestones_count": {
          "score": 6,
          "count": 2,
          "note": "Milestones: (1) Truncator PQ-adjacent research, (2) multi-scheme signature support as agility prep."
        },
        "5e_pqc_washing_delta": {
          "score": 3,
          "ratio": 0.5,
          "note": "Low: modest research claims, no overclaim."
        }
      },
      "total_artifacts": 1
    },
    "6_supply_chain_vendor_readiness": {
      "weight": 0.22,
      "score": 10,
      "sub_scores": {
        "6a_wallet": {
          "score": 2,
          "top3": [
            "Sui Wallet",
            "Suiet",
            "Nightly"
          ],
          "pqc_roadmap_count": 0,
          "evidence": []
        },
        "6b_bridge": {
          "score": 3,
          "top3": [
            "Wormhole",
            "LayerZero",
            "Portal"
          ],
          "pqc_roadmap_count": 0,
          "evidence": []
        },
        "6c_custodian": {
          "score": 3,
          "top3": [
            "Coinbase Custody",
            "BitGo",
            "Copper"
          ],
          "pqc_roadmap_count": 0,
          "evidence": []
        },
        "6d_rpc_hsm": {
          "score": 2,
          "top3": [
            "MystenLabs RPC",
            "BlockVision",
            "Shinami"
          ],
          "pqc_roadmap_count": 0,
          "evidence": []
        }
      },
      "total_artifacts": 1
    },
    "7_governance_coordination": {
      "weight": 0.08,
      "score": 48,
      "sub_scores": {
        "7a_validator_stake_distribution": {
          "score": 10,
          "note": "~110 validators; concentration in top stakers moderate."
        },
        "7b_upgrade_cadence_under_pressure": {
          "score": 13,
          "note": "Protocol versioning and epoch-based upgrades coordinated by MystenLabs / SUI Foundation."
        },
        "7c_named_coordination_lead": {
          "score": 14,
          "note": "Named: MystenLabs (Evan Cheng, Kostas Chalkias), SUI Foundation."
        },
        "7d_adversarial_coordination_precedent": {
          "score": 11,
          "note": "No cryptographic emergency; regular upgrades show coordination but no adversarial precedent."
        }
      },
      "total_artifacts": 1
    }
  },
  "gates": {
    "hybrid_deployment": "FAIL (no shipped hybrid)",
    "evidence_reconstruction": "PASS",
    "primitive_naming": "PASS"
  },
  "caps_applied": [
    "mosca_cap_60 (5a=0)",
    "sutor_cap_50 (only 2 milestones)"
  ],
  "qri": {
    "raw": 28,
    "after_caps": 25,
    "ci_plus_minus": 6,
    "band": 2,
    "band_name": "Planning"
  },
  "migration_stage": 1,
  "mosca_inequality": {
    "X_signature_shelf_life_years": "5-15",
    "Y_migration_time_years_range": "4-8 (multi-scheme substrate helps)",
    "Z_10pct_year": 2036,
    "Z_50pct_year": 2041,
    "danger_zone_at_50pct": true
  },
  "four_scenario_grid": {
    "quantum_never": {
      "value_preserved_pct": 100,
      "privacy_preserved_pct": 100
    },
    "arrives_suddenly_pre_migration": {
      "value_preserved_pct": 15,
      "privacy_preserved_pct": 10
    },
    "arrives_slowly_post_migration": {
      "value_preserved_pct": 65,
      "privacy_preserved_pct": 35
    },
    "arrives_slowly_mid_migration": {
      "value_preserved_pct": 40,
      "privacy_preserved_pct": 20
    }
  },
  "burn_vs_rescue_policy": "none-announced; multi-scheme substrate suggests rescue-favored path",
  "pqc_washing_ratio": 0.5,
  "vendor_tile_summary": {
    "wallet": {
      "top3": [
        "Sui Wallet",
        "Suiet",
        "Nightly"
      ],
      "pqc_roadmap_count": 0
    },
    "bridge": {
      "top3": [
        "Wormhole",
        "LayerZero",
        "Portal"
      ],
      "pqc_roadmap_count": 0
    },
    "custodian": {
      "top3": [
        "Coinbase Custody",
        "BitGo",
        "Copper"
      ],
      "pqc_roadmap_count": 0
    },
    "rpc_hsm": {
      "top3": [
        "MystenLabs RPC",
        "BlockVision",
        "Shinami"
      ],
      "pqc_roadmap_count": 0
    }
  },
  "narrative_summary": "Sui has above-baseline crypto agility thanks to multi-scheme native signature support (Ed25519/secp256k1/secp256r1/BLS) and MystenLabs' research bench (fastcrypto, Truncator). No mainnet PQC code, no published PQ roadmap. Stage 1 assignment rests on research output and type-system readiness rather than deployment.",
  "evaluator_notes": "Stage 1. Better structural agility than most L1 peers. Gate failure: no shipped hybrid. MystenLabs cryptography team (Chalkias) is a credibility asset if they ship.",
  "narrative_voiced": "Sui is that rare chain with four signature schemes already live (Ed25519, secp256k1, secp256r1, BLS12-381) and a cryptography team that reads the literature. What it does not have is any of those schemes being post-quantum. The type system is ready for ML-DSA. The code is not."
}