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Use 4-round AES for program generation

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This commit is contained in:
tevador
2019-05-24 21:59:51 +02:00
parent 378d5def38
commit 16ea16c60c
3 changed files with 64 additions and 5 deletions
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src/aes_hash.cpp
+60 -4
View File
@@ -93,6 +93,11 @@ void hashAes1Rx4(const void *input, size_t inputSize, void *hash) {
template void hashAes1Rx4<false>(const void *input, size_t inputSize, void *hash);
template void hashAes1Rx4<true>(const void *input, size_t inputSize, void *hash);
#define AES_FILL_KEY0 0xdf20a2e3, 0xca329132, 0x454ff6d5, 0x84eeec2d
#define AES_FILL_KEY1 0x1deb5971, 0xfed0387f, 0xf10fc578, 0x017b63d0
#define AES_FILL_KEY2 0xdfc926b3, 0xa517ceb4, 0x2f2c70a1, 0x327d7a52
#define AES_FILL_KEY3 0x341cf31c, 0xa0ece0a9, 0x3d17da5e, 0x5c8d77d3
/*
Fill 'buffer' with pseudorandom data based on 512-bit 'state'.
The state is encrypted using a single AES round per 16 bytes of output
@@ -111,10 +116,10 @@ void fillAes1Rx4(void *state, size_t outputSize, void *buffer) {
rx_vec_i128 state0, state1, state2, state3;
rx_vec_i128 key0, key1, key2, key3;
key0 = rx_set_int_vec_i128(0xdf20a2e3, 0xca329132, 0x454ff6d5, 0x84eeec2d);
key1 = rx_set_int_vec_i128(0x1deb5971, 0xfed0387f, 0xf10fc578, 0x017b63d0);
key2 = rx_set_int_vec_i128(0xdfc926b3, 0xa517ceb4, 0x2f2c70a1, 0x327d7a52);
key3 = rx_set_int_vec_i128(0x341cf31c, 0xa0ece0a9, 0x3d17da5e, 0x5c8d77d3);
key0 = rx_set_int_vec_i128(AES_FILL_KEY0);
key1 = rx_set_int_vec_i128(AES_FILL_KEY1);
key2 = rx_set_int_vec_i128(AES_FILL_KEY2);
key3 = rx_set_int_vec_i128(AES_FILL_KEY3);
state0 = rx_load_vec_i128((rx_vec_i128*)state + 0);
state1 = rx_load_vec_i128((rx_vec_i128*)state + 1);
@@ -143,3 +148,54 @@ void fillAes1Rx4(void *state, size_t outputSize, void *buffer) {
template void fillAes1Rx4<true>(void *state, size_t outputSize, void *buffer);
template void fillAes1Rx4<false>(void *state, size_t outputSize, void *buffer);
template<bool softAes>
void fillAes4Rx4(void *state, size_t outputSize, void *buffer) {
const uint8_t* outptr = (uint8_t*)buffer;
const uint8_t* outputEnd = outptr + outputSize;
rx_vec_i128 state0, state1, state2, state3;
rx_vec_i128 key0, key1, key2, key3;
key0 = rx_set_int_vec_i128(AES_FILL_KEY0);
key1 = rx_set_int_vec_i128(AES_FILL_KEY1);
key2 = rx_set_int_vec_i128(AES_FILL_KEY2);
key3 = rx_set_int_vec_i128(AES_FILL_KEY3);
state0 = rx_load_vec_i128((rx_vec_i128*)state + 0);
state1 = rx_load_vec_i128((rx_vec_i128*)state + 1);
state2 = rx_load_vec_i128((rx_vec_i128*)state + 2);
state3 = rx_load_vec_i128((rx_vec_i128*)state + 3);
while (outptr < outputEnd) {
state0 = aesdec<softAes>(state0, key0);
state1 = aesenc<softAes>(state1, key0);
state2 = aesdec<softAes>(state2, key0);
state3 = aesenc<softAes>(state3, key0);
state0 = aesdec<softAes>(state0, key1);
state1 = aesenc<softAes>(state1, key1);
state2 = aesdec<softAes>(state2, key1);
state3 = aesenc<softAes>(state3, key1);
state0 = aesdec<softAes>(state0, key2);
state1 = aesenc<softAes>(state1, key2);
state2 = aesdec<softAes>(state2, key2);
state3 = aesenc<softAes>(state3, key2);
state0 = aesdec<softAes>(state0, key3);
state1 = aesenc<softAes>(state1, key3);
state2 = aesdec<softAes>(state2, key3);
state3 = aesenc<softAes>(state3, key3);
rx_store_vec_i128((rx_vec_i128*)outptr + 0, state0);
rx_store_vec_i128((rx_vec_i128*)outptr + 1, state1);
rx_store_vec_i128((rx_vec_i128*)outptr + 2, state2);
rx_store_vec_i128((rx_vec_i128*)outptr + 3, state3);
outptr += 64;
}
}
template void fillAes4Rx4<true>(void *state, size_t outputSize, void *buffer);
template void fillAes4Rx4<false>(void *state, size_t outputSize, void *buffer);
src/aes_hash.hpp
+3
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@@ -35,3 +35,6 @@ void hashAes1Rx4(const void *input, size_t inputSize, void *hash);
template<bool softAes>
void fillAes1Rx4(void *state, size_t outputSize, void *buffer);
template<bool softAes>
void fillAes4Rx4(void *state, size_t outputSize, void *buffer);
src/virtual_machine.cpp
+1 -1
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@@ -127,7 +127,7 @@ namespace randomx {
template<class Allocator, bool softAes>
void VmBase<Allocator, softAes>::generateProgram(void* seed) {
fillAes1Rx4<softAes>(seed, sizeof(program), &program);
fillAes4Rx4<softAes>(seed, sizeof(program), &program);
}
template class VmBase<AlignedAllocator<CacheLineSize>, false>;