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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.
43 lines
927 B
Go
43 lines
927 B
Go
package polymul
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import "testing"
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func TestMulNegacyclicBasic(t *testing.T) {
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// (1 + X) * (1 + X) mod (X^4 + 1) = 1 + 2X + X^2.
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a := []uint64{1, 1, 0, 0}
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b := []uint64{1, 1, 0, 0}
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c, err := MulNegacyclic(a, b, 17)
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if err != nil {
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t.Fatal(err)
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}
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want := []uint64{1, 2, 1, 0}
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for i, v := range want {
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if c[i] != v {
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t.Errorf("c[%d] = %d; want %d", i, c[i], v)
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}
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}
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}
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func TestMulNegacyclicWrap(t *testing.T) {
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// X^3 * X mod (X^4 + 1) = -1 = q-1.
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a := []uint64{0, 0, 0, 1}
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b := []uint64{0, 1, 0, 0}
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c, err := MulNegacyclic(a, b, 17)
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if err != nil {
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t.Fatal(err)
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}
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want := []uint64{16, 0, 0, 0}
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for i, v := range want {
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if c[i] != v {
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t.Errorf("c[%d] = %d; want %d", i, c[i], v)
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}
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}
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}
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func TestMulNegacyclicLengthMismatch(t *testing.T) {
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_, err := MulNegacyclic([]uint64{1, 2}, []uint64{1, 2, 3}, 17)
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if err != ErrLengthMismatch {
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t.Errorf("got %v want %v", err, ErrLengthMismatch)
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}
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}
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