4fe3fdfbd2
Vendor RandomX source, add bridge_randomx_hash() with static VM lifecycle. Key: LetheanRandomXv1. Input: header_hash || nonce. Co-Authored-By: Charon <charon@lethean.io>
29 lines
854 B
Go
29 lines
854 B
Go
// Copyright (c) 2017-2026 Lethean (https://lt.hn)
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//
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// Licensed under the European Union Public Licence (EUPL) version 1.2.
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// SPDX-Licence-Identifier: EUPL-1.2
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package crypto
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// #include "bridge.h"
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import "C"
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import (
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"fmt"
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"unsafe"
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)
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// RandomXHash computes the RandomX PoW hash. The key is the cache
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// initialisation key (e.g. "LetheanRandomXv1"). Input is typically
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// the block header hash (32 bytes) concatenated with the nonce (8 bytes LE).
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func RandomXHash(key, input []byte) ([32]byte, error) {
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var output [32]byte
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ret := C.bridge_randomx_hash(
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(*C.uint8_t)(unsafe.Pointer(&key[0])), C.size_t(len(key)),
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(*C.uint8_t)(unsafe.Pointer(&input[0])), C.size_t(len(input)),
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(*C.uint8_t)(unsafe.Pointer(&output[0])),
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)
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if ret != 0 {
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return output, fmt.Errorf("crypto: RandomX hash failed with code %d", ret)
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}
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return output, nil
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}
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