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>
31 lines
894 B
Go
31 lines
894 B
Go
// SPDX-Licence-Identifier: EUPL-1.2
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package crypto
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/*
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#cgo CPPFLAGS: -I${SRCDIR}/upstream -I${SRCDIR}/compat -I${SRCDIR}/randomx
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#cgo LDFLAGS: -L${SRCDIR}/build -lcryptonote -lrandomx -lstdc++ -lssl -lcrypto -lpthread
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#include "bridge.h"
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*/
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import "C"
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import "unsafe"
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// FastHash computes the CryptoNote fast hash (Keccak-256) of the input.
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func FastHash(data []byte) [32]byte {
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var hash [32]byte
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if len(data) == 0 {
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C.bridge_fast_hash(nil, 0, (*C.uint8_t)(unsafe.Pointer(&hash[0])))
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} else {
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C.bridge_fast_hash((*C.uint8_t)(unsafe.Pointer(&data[0])),
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C.size_t(len(data)),
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(*C.uint8_t)(unsafe.Pointer(&hash[0])))
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}
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return hash
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}
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// ScReduce32 reduces a 32-byte value modulo the Ed25519 group order l.
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// This is required when converting a hash output to a valid secret key scalar.
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func ScReduce32(key *[32]byte) {
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C.cn_sc_reduce32((*C.uint8_t)(unsafe.Pointer(&key[0])))
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}
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