int main( int argc, char *argv[] )
{
mtrng_t mt;
srand(42);
//Wait for a random time
printf("Sleeping...\n");
sleep( (rand()%1000) + 40);
int seed = time(NULL);
SeedMT( &mt, seed );
printf("Seeded...\n");
printf("Sleeping...\n");
sleep( (rand()%1000) + 40);
printf("Woke up!...\n");
uint32_t first = ExtractNumber( &mt );
int i;
int currTime = time(NULL);
mtrng_t temp;
for( i = 0; i < 100000; i++ ){
SeedMT( &temp, currTime );
uint32_t num = ExtractNumber( &temp ) ;
if( num == first ) {
printf("FOUND:%d\n", currTime );
printf("Used Seed:%d\n", seed );
break;
}
currTime--;
}
return 0;
}
bool RakNetRandomSync::DeserializeConstruction(RakNet::BitStream *constructionBitstream)
{
uint32_t _seed;
uint32_t _skipValues;
constructionBitstream->Read(_seed);
bool success = constructionBitstream->Read(_skipValues);
if (success)
SeedMT(_seed, _skipValues);
return success;
}
void EncodePRNG( uint16_t seed, byte_t *data, int size )
{
mtrng_t mt;
SeedMT( &mt, seed );
int i;
for( i = 0; i < size; i++ ) {
byte_t num = ExtractNumber( &mt )%256;
data[i] = data[i] ^ num;
}
}
int main( int argc, char *argv[] )
{
srand(time(NULL));
int size = ( rand()%300 ) + 100;
uint16_t s16 = rand()%0x10000;
printf("Seed:%d\n",s16);
byte_t *buffer = malloc(size);
int i;
for( i = 0; i < size-14; i++ ) {
buffer[i] = rand();
}
for( ; i < size; i++ ) {
buffer[i] = 'A';
}
buffer[i] = '\0';
for( i = 0; i < size; i++ ) printf("%02x",buffer[i]);
printf("\n");
EncodePRNG( s16, buffer, size );
for( i = 0; i < size; i++ ) printf("%02x",buffer[i]);
printf("\n");
uint16_t nseed;
mtrng_t mt2;
for( i = 0; i < 0x10000; i++ ) {
SeedMT( &mt2, i);
int j;
int ding = 0;
for( j = 0; j < size; j++ ) {
if( j < (size-14) ) {
ExtractNumber( &mt2 );
} else {
if( ((ExtractNumber( &mt2 )%256) ^ buffer[j] ) == 'A' ) {
ding++;
}
}
}
if( ding == 14 ) {
printf("dingnumber:%d %d\n",ding,i);
nseed = i;
}
}
EncodePRNG( nseed, buffer, size );
for( i = 0; i < size; i++ ) printf("%02x",buffer[i]);
printf("\n");
return 0;
}
void RakNetRandomSync::SeedMT( uint32_t _seed, uint32_t skipValues )
{
SeedMT(_seed);
Skip(skipValues);
}