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Merge pull request #265 from tevador/pr-randomx-v2

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RandomX commitments with double-hashing
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tevador 2023-09-08 23:22:15 +02:00 committed by GitHub
commit 1c603a23fa
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4 changed files with 71 additions and 7 deletions
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11
src/randomx.cpp
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@ -417,4 +417,15 @@ extern "C" {
machine->run(machine->tempHash);
machine->getFinalResult(output, RANDOMX_HASH_SIZE);
}
void randomx_calculate_commitment(const void* input, size_t inputSize, const void* hash_in, void* com_out) {
assert(inputSize == 0 || input != nullptr);
assert(hash_in != nullptr);
assert(com_out != nullptr);
blake2b_state state;
blake2b_init(&state, RANDOMX_HASH_SIZE);
blake2b_update(&state, input, inputSize);
blake2b_update(&state, hash_in, RANDOMX_HASH_SIZE);
blake2b_final(&state, com_out, RANDOMX_HASH_SIZE);
}
}

11
src/randomx.h
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@ -260,6 +260,17 @@ RANDOMX_EXPORT void randomx_calculate_hash_first(randomx_vm* machine, const void
RANDOMX_EXPORT void randomx_calculate_hash_next(randomx_vm* machine, const void* nextInput, size_t nextInputSize, void* output);
RANDOMX_EXPORT void randomx_calculate_hash_last(randomx_vm* machine, void* output);
/**
* Calculate a RandomX commitment from a RandomX hash and its input.
*
* @param input is a pointer to memory that was hashed. Must not be NULL.
* @param inputSize is the number of bytes in the input.
* @param hash_in is the output from randomx_calculate_hash* (RANDOMX_HASH_SIZE bytes).
* @param com_out is a pointer to memory where the commitment will be stored. Must not
* be NULL and at least RANDOMX_HASH_SIZE bytes must be available for writing.
*/
RANDOMX_EXPORT void randomx_calculate_commitment(const void* input, size_t inputSize, const void* hash_in, void* com_out);
#if defined(__cplusplus)
}
#endif

30
src/tests/benchmark.cpp
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@ -96,6 +96,7 @@ void printUsage(const char* executable) {
std::cout << " --avx2 use optimized Argon2 for AVX2 CPUs" << std::endl;
std::cout << " --auto select the best options for the current CPU" << std::endl;
std::cout << " --noBatch calculate hashes one by one (default: batch)" << std::endl;
std::cout << " --commit calculate commitments instead of hashes (default: hashes)" << std::endl;
}
struct MemoryException : public std::exception {
@ -113,7 +114,7 @@ struct DatasetAllocException : public MemoryException {
using MineFunc = void(randomx_vm * vm, std::atomic<uint32_t> & atomicNonce, AtomicHash & result, uint32_t noncesCount, int thread, int cpuid);
template<bool batch>
template<bool batch, bool commit>
void mine(randomx_vm* vm, std::atomic<uint32_t>& atomicNonce, AtomicHash& result, uint32_t noncesCount, int thread, int cpuid = -1) {
if (cpuid >= 0) {
int rc = set_thread_affinity(cpuid);
@ -138,6 +139,9 @@ void mine(randomx_vm* vm, std::atomic<uint32_t>& atomicNonce, AtomicHash& result
}
store32(noncePtr, nonce);
(batch ? randomx_calculate_hash_next : randomx_calculate_hash)(vm, blockTemplate, sizeof(blockTemplate), &hash);
if (commit) {
randomx_calculate_commitment(blockTemplate, sizeof(blockTemplate), &hash, &hash);
}
result.xorWith(hash);
if (!batch) {
nonce = atomicNonce.fetch_add(1);
@ -146,7 +150,7 @@ void mine(randomx_vm* vm, std::atomic<uint32_t>& atomicNonce, AtomicHash& result
}
int main(int argc, char** argv) {
bool softAes, miningMode, verificationMode, help, largePages, jit, secure;
bool softAes, miningMode, verificationMode, help, largePages, jit, secure, commit;
bool ssse3, avx2, autoFlags, noBatch;
int noncesCount, threadCount, initThreadCount;
uint64_t threadAffinity;
@ -172,10 +176,11 @@ int main(int argc, char** argv) {
readOption("--avx2", argc, argv, avx2);
readOption("--auto", argc, argv, autoFlags);
readOption("--noBatch", argc, argv, noBatch);
readOption("--commit", argc, argv, commit);
store32(&seed, seedValue);
std::cout << "RandomX benchmark v1.1.11" << std::endl;
std::cout << "RandomX benchmark v1.1.12" << std::endl;
if (help) {
printUsage(argv[0]);
@ -280,11 +285,24 @@ int main(int argc, char** argv) {
MineFunc* func;
if (noBatch) {
func = &mine<false>;
if (commit) {
std::cout << " - hash commitments" << std::endl;
func = &mine<false, true>;
}
else {
func = &mine<false, false>;
}
}
else {
if (commit) {
//TODO: support batch mode with commitments
std::cout << " - hash commitments" << std::endl;
func = &mine<false, true>;
}
else {
func = &mine<true>;
std::cout << " - batch mode" << std::endl;
func = &mine<true, false>;
}
}
std::cout << "Initializing";
@ -376,7 +394,7 @@ int main(int argc, char** argv) {
randomx_release_cache(cache);
std::cout << "Calculated result: ";
result.print(std::cout);
if (noncesCount == 1000 && seedValue == 0)
if (noncesCount == 1000 && seedValue == 0 && !commit)
std::cout << "Reference result: 10b649a3f15c7c7f88277812f2e74b337a0f20ce909af09199cccb960771cfa1" << std::endl;
if (!miningMode) {
std::cout << "Performance: " << 1000 * elapsed / noncesCount << " ms per hash" << std::endl;

24
src/tests/tests.cpp
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@ -34,6 +34,14 @@ void calcStringHash(const char(&key)[K], const char(&input)[H], void* output) {
randomx_calculate_hash(vm, input, H - 1, output);
}
template<size_t K, size_t H>
void calcStringCommitment(const char(&key)[K], const char(&input)[H], void* output) {
initCache(key);
assert(vm != nullptr);
randomx_calculate_hash(vm, input, H - 1, output);
randomx_calculate_commitment(input, H - 1, output, output);
}
template<size_t K, size_t H>
void calcHexHash(const char(&key)[K], const char(&hex)[H], void* output) {
initCache(key);
@ -1082,6 +1090,22 @@ int main() {
assert(rx_get_rounding_mode() == RoundToNearest);
});
if (RANDOMX_HAVE_COMPILER) {
randomx_destroy_vm(vm);
vm = nullptr;
#ifdef RANDOMX_FORCE_SECURE
vm = randomx_create_vm(RANDOMX_FLAG_DEFAULT | RANDOMX_FLAG_SECURE, cache, nullptr);
#else
vm = randomx_create_vm(RANDOMX_FLAG_DEFAULT, cache, nullptr);
#endif
}
runTest("Commitment test", stringsEqual(RANDOMX_ARGON_SALT, "RandomX\x03"), []() {
char hash[RANDOMX_HASH_SIZE];
calcStringCommitment("test key 000", "This is a test", &hash);
assert(equalsHex(hash, "d53ccf348b75291b7be76f0a7ac8208bbced734b912f6fca60539ab6f86be919"));
});
randomx_destroy_vm(vm);
vm = nullptr;