{
  "module": "sha3_chain",
  "rtl_top": "sync_rtl/sha3_chain/sha3_chain_top.v",
  "rtl_deps": ["sync_rtl/sha3/keccak_round.v", "sync_rtl/sha3/keccak_core.v", "sync_rtl/sha3/sha3_top.v"],
  "tb_cpp": "sync_rtl/sha3_chain/TB/tb_sha3_chain.cpp",
  "timeout_s": 60,
  "cases": [{
    "id": "basic",
    "description": "d → SHA3_G(d||k=2) → rho, sigma vs Python G()",
    "params": {"k": 2},
    "num_vectors": 3,
    "tolerance": "bit_exact"
  }]
}