FallenSigh ae5f0ca048 feat(sha3_chain): add simple SHA3_G integration test
Phase 3.2: Verifies module chaining works.
- sha3_chain_top.v: 3-state FSM (IDLE→BUSY→DONE), feeds d_in→sha3_top(G)
- Captures rho[255:0] and sigma[511:256] from SHA3-512 output
- Verified: 3/3 bit-exact vs Python G(d||k=2) reference

KG full-path FSM (~11 module chain) deferred — too complex for single dispatch.
2026-06-25 00:22:08 +08:00
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