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Hanzo AI ecaca10cdb canonical Go entry: backend selector + batch GPU paths via lux/accel
luxfi/crypto becomes the single Go entry point for ALL Lux-family crypto.
Every public function in this module now dispatches between three
implementations through a runtime-selectable backend:

  - vanilla: pure-Go reference (always available)
  - cgo:     native binding (blst, libsecp256k1, ckzg) where present
  - gpu:     batch acceleration via github.com/luxfi/accel

The dispatcher reads LUX_CRYPTO_BACKEND (auto|vanilla|cgo|gpu); auto
picks the most capable backend the binary was compiled and linked with.

New canonical packages:
  backend/             runtime backend selector (env + programmatic)
  internal/gpuhost/    accel session lifecycle, single per-process
  keccak/              Keccak-256 with batch GPU dispatch
  sha256/              SHA-256 with batch GPU dispatch
  sha3/                SHA3 / SHAKE family
  ripemd160/           RIPEMD-160 (Bitcoin/Lux address derivation)
  ed25519/             Ed25519 with batch GPU verify
  bn254/               canonical alias for bn256 (matches FIPS naming)
  modexp/              canonical alias for bigmodexp
  evm256/              EIP-196/197 precompile ABI wrappers
  poseidon/            Poseidon2 hash via gnark-crypto
  pedersen/            Pedersen commitments over BN254
  ntt/                 Number-Theoretic Transform reference
  polymul/             negacyclic polynomial multiplication

Extended existing packages with batch GPU paths:
  bls/batch.go         BatchVerify routes through accel.BLSVerifyBatch
  mldsa/batch.go       BatchVerify (ML-DSA-65) via accel.DilithiumVerifyBatch
  mlkem/batch.go       BatchEncapsulate / BatchDecapsulate via Kyber kernels
  secp256k1/batch.go   BatchVerifySignature via accel.ECDSAVerifyBatch

GPU dispatch is gated on (a) backend.Default(), (b) batch size threshold,
and (c) accel.Available(). When any gate fails the call falls through to
the vanilla CPU path; output is byte-identical.

The legacy gpu/ stub is replaced with a thin probe surface (Available,
Backend, Devices, Version) that delegates to the same gpuhost session.

Tests show vanilla and gpu backends produce identical outputs across all
batch entry points (-race clean).

See AUDIT.md for the per-algorithm state matrix and honest gaps.
2025-12-27 19:30:33 -08:00

38 lines
846 B
Go

package sha256
import (
stdsha256 "crypto/sha256"
"encoding/hex"
"testing"
)
func TestSum256(t *testing.T) {
cases := []struct {
in, want string
}{
{"", "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"},
{"abc", "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"},
}
for _, c := range cases {
got := Sum256([]byte(c.in))
want, _ := hex.DecodeString(c.want)
if string(got[:]) != string(want) {
t.Errorf("Sum256(%q) = %x; want %s", c.in, got, c.want)
}
}
}
func TestSum256BatchMatchesScalar(t *testing.T) {
inputs := make([][]byte, BatchThreshold+4)
for i := range inputs {
inputs[i] = []byte("v" + string(rune('a'+i%26)))
}
got := Sum256Batch(inputs)
for i, in := range inputs {
want := stdsha256.Sum256(in)
if got[i] != want {
t.Errorf("batch[%d] mismatch", i)
}
}
}