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https://github.com/luxfi/accel.git
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zeekay
ef39c02b90
- Replace MSM(curve string, ...) with MSM(curve Curve, ...). Curve enum values (0..3) match GPUKIT_CURVE_* in luxcpp/crypto so the cgo bridge forwards them unchanged. - Drop the always-error msmCPU stub; route through gpukit_multi_pippenger_cpu via cgo when -tags=lux_crypto_native is set (CPU body is the same signed-digit Bos-Coster Pippenger that backs secp256k1 / bn254 / banderwagon). - !cgo or !lux_crypto_native build returns ErrUnsupported so callers fall back to their own MSM (e.g. gnark-crypto MultiExp inside the EIP-2537 bls12381 precompile). Closes the audit hole at luxfi/precompile a5c7257e718ca0d94: MSM on BLS12-381 G1 now has a real CPU implementation through accel. Wire format (per Curve doc): CurveSecp256k1, CurveBN254, CurveBanderwagon : 64-byte BE x||y per point CurveBLS12_381 : 96-byte BE x||y per point scalars : 32-byte LE canonical
16 lines
576 B
Go
16 lines
576 B
Go
// Copyright (C) 2024-2026, Lux Industries Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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//go:build !cgo || !lux_crypto_native
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// +build !cgo !lux_crypto_native
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package crypto
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// msmCPU is the pure-Go path. It returns ErrUnsupported so callers can fall
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// back to their own MSM implementation (e.g. gnark-crypto MultiExp inside
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// the EIP-2537 precompile). Build with `-tags=lux_crypto_native` and a CGO
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// toolchain to route through luxcpp/crypto.
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func msmCPU(curve Curve, scalars, points [][]byte) ([]byte, error) {
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return nil, ErrUnsupported
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}
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