# Native security system design

TGC security strategy consists of three major systems: "Agreement security + Storage\
security + Network defense":

1. Anti-quantum encryption algorithm   \
   Adopt lattice cryptographic scheme (such as NTRU, Lattice-based encryption):   \
   Anti-Grover/Shor algorithm cracking   \
   Support post-quantum compatible extension structure
2. Cold wallet and multi-signature   \
   Core funds adopt the following mechanism:   \
   3-of-5 multi-signature structure   \
   Signatures are distributed in multiple physical security modules (HSM)   \
   Cold and hot separation asset system, only proxy address proxy call is used on the chain
3. On-chain behavior detection and firewall   \
   Combining AI and on-chain behavior analysis to build a dynamic security audit mecha nism:   \
   //On-chain contract call frequency analysis + abnormal transaction identification   \
   if (tx.origin != expectedCaller || gasUsed > threshold) {   \
   emit SuspiciousActivity(tx.origin);   \
   revert("Suspicious contract interaction blocked");   \
   }

Deployment mechanisms include:\
Contract execution audit node\
Smart contract sandbox environment\
Blacklist contract behavior marking system
