i2pd-tools/vanitygen.cpp

#include "vanity.hpp"
#define CPU_ONLY

static void CalculateW (const uint8_t block[64], uint32_t W[64])
{
/*
implementation of orignal
*/
	for (int i = 0; i < 16; i++)
		W[i] = be32toh (((uint32_t *)(block))[i]);
	for (int i = 16; i < 64; i++)
		W[i] = s1(W[i - 2]) + W[i - 7] + s0(W[i - 15]) + W[i - 16];
}
 
static void TransformBlock (uint32_t state[8], const uint32_t W[64])
{
/*
implementation of orignal
*/
	uint32_t S[8];
	memcpy(S, state, 32);

	uint32_t t0, t1;
	RNDr(S, W, 0, 0x428a2f98); RNDr(S, W, 1, 0x71374491); RNDr(S, W, 2, 0xb5c0fbcf); RNDr(S, W, 3, 0xe9b5dba5);
	RNDr(S, W, 4, 0x3956c25b); RNDr(S, W, 5, 0x59f111f1); RNDr(S, W, 6, 0x923f82a4); RNDr(S, W, 7, 0xab1c5ed5);
	RNDr(S, W, 8, 0xd807aa98); RNDr(S, W, 9, 0x12835b01); RNDr(S, W, 10, 0x243185be); RNDr(S, W, 11, 0x550c7dc3);
	RNDr(S, W, 12, 0x72be5d74); RNDr(S, W, 13, 0x80deb1fe); RNDr(S, W, 14, 0x9bdc06a7); RNDr(S, W, 15, 0xc19bf174);
	RNDr(S, W, 16, 0xe49b69c1); RNDr(S, W, 17, 0xefbe4786); RNDr(S, W, 18, 0x0fc19dc6); RNDr(S, W, 19, 0x240ca1cc);
	RNDr(S, W, 20, 0x2de92c6f); RNDr(S, W, 21, 0x4a7484aa); RNDr(S, W, 22, 0x5cb0a9dc); RNDr(S, W, 23, 0x76f988da);
	RNDr(S, W, 24, 0x983e5152); RNDr(S, W, 25, 0xa831c66d); RNDr(S, W, 26, 0xb00327c8); RNDr(S, W, 27, 0xbf597fc7);
	RNDr(S, W, 28, 0xc6e00bf3); RNDr(S, W, 29, 0xd5a79147); RNDr(S, W, 30, 0x06ca6351); RNDr(S, W, 31, 0x14292967);
	RNDr(S, W, 32, 0x27b70a85); RNDr(S, W, 33, 0x2e1b2138); RNDr(S, W, 34, 0x4d2c6dfc); RNDr(S, W, 35, 0x53380d13);
	RNDr(S, W, 36, 0x650a7354); RNDr(S, W, 37, 0x766a0abb); RNDr(S, W, 38, 0x81c2c92e); RNDr(S, W, 39, 0x92722c85);
	RNDr(S, W, 40, 0xa2bfe8a1); RNDr(S, W, 41, 0xa81a664b); RNDr(S, W, 42, 0xc24b8b70); RNDr(S, W, 43, 0xc76c51a3);
	RNDr(S, W, 44, 0xd192e819); RNDr(S, W, 45, 0xd6990624); RNDr(S, W, 46, 0xf40e3585); RNDr(S, W, 47, 0x106aa070);
	RNDr(S, W, 48, 0x19a4c116); RNDr(S, W, 49, 0x1e376c08); RNDr(S, W, 50, 0x2748774c); RNDr(S, W, 51, 0x34b0bcb5);
	RNDr(S, W, 52, 0x391c0cb3); RNDr(S, W, 53, 0x4ed8aa4a); RNDr(S, W, 54, 0x5b9cca4f); RNDr(S, W, 55, 0x682e6ff3);
	RNDr(S, W, 56, 0x748f82ee); RNDr(S, W, 57, 0x78a5636f); RNDr(S, W, 58, 0x84c87814); RNDr(S, W, 59, 0x8cc70208);
	RNDr(S, W, 60, 0x90befffa); RNDr(S, W, 61, 0xa4506ceb); RNDr(S, W, 62, 0xbef9a3f7); RNDr(S, W, 63, 0xc67178f2);
	
	for (int i = 0; i < 8; i++)	state[i] += S[i];		
}

void HashNextBlock (uint32_t state[8], const uint8_t * block)
{
/*
implementation of orignal
*/
	uint32_t W[64];
	CalculateW (block, W);
	TransformBlock (state, W);
}




static bool check_prefix(const char * buf){
unsigned short size_str=0;
while(*buf)
{
 if(
 *buf < 48 
 || 
 (*buf > 57 && *buf < 65) 
 ||
 (*buf > 64 && *buf < 94) 
 || *buf > 125
 || size_str > 52
 )return false;
size_str++;
*buf++;
}
return true;
}


static size_t ByteStreamToBase32 (const uint8_t * inBuf, size_t len, char * outBuf, size_t outLen)
{
	size_t ret = 0, pos = 1;
	int bits = 8, tmp = inBuf[0];
	while (ret < outLen && (bits > 0 || pos < len))
	{ 	
		if (bits < 5)
		{
			if (pos < len)
			{
				tmp <<= 8;
	      		tmp |= inBuf[pos] & 0xFF;
				pos++;
	      		bits += 8;
			}
			else // last byte
			{
				tmp <<= (5 - bits);
			  	bits = 5;
			}
		}	
	
		bits -= 5;
		int ind = (tmp >> bits) & 0x1F;
		outBuf[ret] = (ind < 26) ? (ind + 'a') : ((ind - 26) + '2');
		ret++;
	}
	outBuf[ret]='\0';
	return ret;
}

static inline bool NotThat(const char * a, const char *b){
while(*b)
 if(*a++!=*b++) return true;
return false;
}


#ifdef CPU_ONLY
static inline bool thread_find(uint8_t * buf,const char * prefix,int id_thread,unsigned long long throughput){
/*
Thanks to orignal ^-^
For idea and example ^-^
Orignal is sensei of crypto ;)
*/
	std::cout << "Thread " << id_thread << " binded" << std::endl;
/*
	union
	{
		uint8_t b[391];
		uint32_t ll;
	} local;	
	union
	{
		uint8_t b[32];
		uint32_t ll[8];
	} hash; 
*/
	uint8_t * b = (uint8_t*)aligned_alloc(4,sizeof(uint8_t)*391);
	uint32_t * hash = (uint32_t*)aligned_alloc(4,sizeof(uint32_t)*8);

	memcpy (b, buf, 391);

	auto len = strlen (prefix);
	// precalculate first 5 blocks (320 bytes)
	uint32_t state[8] = 
		{ 0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A, 
		  0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19 };
	HashNextBlock (state, b);
	HashNextBlock (state, b + 64);
	HashNextBlock (state, b + 128);
	HashNextBlock (state, b + 192);
	HashNextBlock (state, b + 256);	

	// pre-calculate last W
	uint32_t lastW[64];
	CalculateW (lastBlock, lastW); 

	uint32_t * nonce = (uint32_t *)(b+320);
	(*nonce) += id_thread*throughput; 
/*

*/
	char addr[53];
	uint32_t state1[8];

while(throughput-- and !found){


	memcpy (state1, state, 32);
	// calculate hash of block with nonce	
	HashNextBlock (state1, b + 320);
	// apply last block	
	TransformBlock (state1, lastW);		
	// get final hash
	for (int j = 0; j < 8; j++)
		hash[j] = htobe32 (state1[j]);

/*

*/
	ByteStreamToBase32 ((uint8_t*)hash, 32, addr, len);
	if(	!NotThat(addr,prefix)	){
		ByteStreamToBase32 ((uint8_t*)hash, 32, addr, 52);
		std::cout << "Address found " << addr << " in " << id_thread << std::endl;
		found=true;
		FoundNonce=*nonce;
		//free(hash);
		//free(b);
		return true;
	}

	(*nonce)++;
	hashescounter++;
	if (found){
	//free(hash);
	//free(b);
	break;	
	}

	}//while
}

#endif


int main (int argc, char * argv[])
{
	if ( argc < 3 )
	{
		std::cout << "Usage: " << argv[0] << " filename generatestring <threads(default of system)> <signature type>" << std::endl;
		return 0;
	}
	if(!check_prefix(argv[2])){
		std::cout << "Not correct prefix" << std::endl;
		return 0;
	}
	i2p::crypto::InitCrypto (false);
	type = i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519;
	if ( argc > 3 ){
		unsigned int tmp = atoi(argv[3]);
		if(tmp > 255) {
			std::cout << "Really more than 255 threads?:D Nope, sorry" << std::endl;
			return 0;
		}
		count_cpu=atoi(argv[3]);
	}if ( argc > 4 ) {
		type = NameToSigType(std::string(argv[4]));
	}

///////////////
//For while
if(type != i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519){
	std::cout << "For a while only ED25519-SHA512" << std::endl;
	return 0;
}
///////////////

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
			auto keys = i2p::data::PrivateKeys::CreateRandomKeys (type);
			switch(type){
			case i2p::data::SIGNING_KEY_TYPE_DSA_SHA1:
			case i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA512_P521:	
			case i2p::data::SIGNING_KEY_TYPE_RSA_SHA256_2048:
			case i2p::data::SIGNING_KEY_TYPE_RSA_SHA384_3072:		
			case i2p::data::SIGNING_KEY_TYPE_RSA_SHA512_4096:
			case i2p::data::SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512:
			case i2p::data::SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512_TEST:
			std::cout << "Sorry, i don't can generate adress for this signature type" << std::endl;
			return 0;			
			break;							
			}
//TODO: for other types.
			switch(type){
			case i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256:

			break;
			case i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA384_P384:

			break;
			case i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA512_P521:
				
			break;
			case i2p::data::SIGNING_KEY_TYPE_RSA_SHA256_2048:

			break;
			case i2p::data::SIGNING_KEY_TYPE_RSA_SHA384_3072:

			break;
			case i2p::data::SIGNING_KEY_TYPE_RSA_SHA512_4096:

			break;
			case i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519:
			MutateByte=320;
			break;
			case i2p::data::SIGNING_KEY_TYPE_GOSTR3410_CRYPTO_PRO_A_GOSTR3411_256:
			case i2p::data::SIGNING_KEY_TYPE_GOSTR3410_CRYPTO_PRO_A_GOSTR3411_256_TEST:

			break;
			}


  KeyBuf = new uint8_t[keys.GetFullLen()];
  keys.ToBuffer (KeyBuf, keys.GetFullLen ());

  if(!count_cpu)
   count_cpu = sysconf(_SC_NPROCESSORS_ONLN);

   std::cout << "Start vanity generator in " << count_cpu << " threads" << std::endl;


unsigned short attempts = 0;
while(!found)

{//while
{//stack(for destructors(vector/thread))

  std::vector<std::thread> threads(count_cpu);
  unsigned long long thoughtput = 0x4F4B5A37;

  for ( unsigned int j = count_cpu;j--;){
   threads[j] = std::thread(thread_find,KeyBuf,argv[2],j,thoughtput);
   thoughtput+=1000;
  }//for

  for(unsigned int j = 0; j < count_cpu;j++)
   threads[j].join();
  
  if(FoundNonce == 0){
	RAND_bytes( KeyBuf+MutateByte , 90 );
	std::cout << "Attempts #" << ++attempts << std::endl;
   }

}//stack
}//while

  memcpy (KeyBuf + MutateByte, &FoundNonce, 4);
  std::cout << "Hashes: " << hashescounter << std::endl;
  
	std::ofstream f (argv[1], std::ofstream::binary | std::ofstream::out);
	if (f)
	{
		f.write ((char *)KeyBuf, keys.GetFullLen ());
   		delete [] KeyBuf;
	}
	else
		std::cout << "Can't create file " << argv[1] << std::endl;

	i2p::crypto::TerminateCrypto ();

	return 0;
}