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Vanity.cpp
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/*
* This file is part of the VanitySearch distribution (https://github.com/JeanLucPons/VanitySearch).
* Copyright (c) 2019 Jean Luc PONS.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Vanity.h"
#include "Base58.h"
#include "Bech32.h"
#include "hash/sha256.h"
#include "hash/sha512.h"
#include "IntGroup.h"
#include "Wildcard.h"
#include "Timer.h"
#include "hash/ripemd160.h"
#include <string.h>
#include <math.h>
#include <algorithm>
#ifndef WIN64
#include <pthread.h>
#endif
using namespace std;
Point Gn[CPU_GRP_SIZE / 2];
Point _2Gn;
// ----------------------------------------------------------------------------
VanitySearch::VanitySearch(vector<std::string>& inputPrefixes, string seed, int searchMode,
bool useGpu, bool stop, string outputFile, bool useSSE, uint32_t maxFound,
uint64_t rekey, bool caseSensitive,const Point& startPubKey, bool paranoiacSeed, const Int& startKey)
:inputPrefixes(inputPrefixes) {
this->searchMode = searchMode;
this->useGpu = useGpu;
this->stopWhenFound = stop;
this->outputFile = outputFile;
this->useSSE = useSSE;
this->nbGPUThread = 0;
this->maxFound = maxFound;
this->rekey = rekey;
this->startKey = startKey;
this->startPubKey = startPubKey;
this->hasPattern = false;
this->caseSensitive = caseSensitive;
this->startPubKeySpecified = !startPubKey.isZero();
if (searchMode == SEARCH_PUBLICKEYS)
{
this->searchType = P2PKH;
}
else
{
this->searchType = -1;
}
lastRekey = 0;
prefixes.clear();
// Create a 65536 items lookup table
PREFIX_TABLE_ITEM t;
t.found = true;
t.items = NULL;
for (int i = 0; i < 65536; i++)
prefixes.push_back(t);
// Check is inputPrefixes contains wildcard character
for (int i = 0; i < (int)inputPrefixes.size() && !hasPattern; i++) {
hasPattern = ((inputPrefixes[i].find('*') != std::string::npos) ||
(inputPrefixes[i].find('?') != std::string::npos));
}
if (!hasPattern) {
// No wildcard used, standard search
// Insert prefixes
bool loadingProgress = (inputPrefixes.size() > 1000);
if (loadingProgress)
printf("[Building lookup16 0.0%%]\r");
nbPrefix = 0;
onlyFull = true;
for (int i = 0; i < (int)inputPrefixes.size(); i++) {
PREFIX_ITEM it;
std::vector<PREFIX_ITEM> itPrefixes;
if (!caseSensitive) {
// For caseunsensitive search, loop through all possible combination
// and fill up lookup table
vector<string> subList;
enumCaseUnsentivePrefix(inputPrefixes[i], subList);
bool* found = new bool;
*found = false;
for (int j = 0; j < (int)subList.size(); j++) {
if (initPrefix(subList[j], &it)) {
it.found = found;
it.prefix = strdup(it.prefix); // We need to allocate here, subList will be destroyed
itPrefixes.push_back(it);
}
}
if (itPrefixes.size() > 0) {
// Compute difficulty for case unsensitive search
// Not obvious to perform the right calculation here using standard double
// Improvement are welcome
// Get the min difficulty and divide by the number of item having the same difficulty
// Should give good result when difficulty is large enough
double dMin = itPrefixes[0].difficulty;
int nbMin = 1;
for (int j = 1; j < (int)itPrefixes.size(); j++) {
if (itPrefixes[j].difficulty == dMin) {
nbMin++;
}
else if (itPrefixes[j].difficulty < dMin) {
dMin = itPrefixes[j].difficulty;
nbMin = 1;
}
}
dMin /= (double)nbMin;
// Updates
for (int j = 0; j < (int)itPrefixes.size(); j++)
itPrefixes[j].difficulty = dMin;
}
}
else {
if (initPrefix(inputPrefixes[i], &it)) {
bool* found = new bool;
*found = false;
it.found = found;
itPrefixes.push_back(it);
}
}
if (itPrefixes.size() > 0) {
// Add the item to all correspoding prefixes in the lookup table
for (int j = 0; j < (int)itPrefixes.size(); j++) {
prefix_t p = itPrefixes[j].sPrefix;
if (prefixes[p].items == NULL) {
prefixes[p].items = new vector<PREFIX_ITEM>();
prefixes[p].found = false;
usedPrefix.push_back(p);
}
(*prefixes[p].items).push_back(itPrefixes[j]);
}
onlyFull &= it.isFull;
nbPrefix++;
}
if (loadingProgress && i % 1000 == 0)
printf("[Building lookup16 %5.1f%%]\r", (((double)i) / (double)(inputPrefixes.size() - 1)) * 100.0);
}
if (loadingProgress)
printf("\n");
//dumpPrefixes();
if (!caseSensitive && searchType == BECH32) {
printf("Error, case unsensitive search with BECH32 not allowed.\n");
exit(1);
}
if (nbPrefix == 0) {
printf("VanitySearch: nothing to search !\n");
exit(1);
}
// Second level lookup
uint32_t unique_sPrefix = 0;
uint32_t minI = 0xFFFFFFFF;
uint32_t maxI = 0;
for (int i = 0; i < (int)prefixes.size(); i++) {
if (prefixes[i].items) {
LPREFIX lit;
lit.sPrefix = i;
if (prefixes[i].items) {
for (int j = 0; j < (int)prefixes[i].items->size(); j++) {
lit.lPrefixes.push_back((*prefixes[i].items)[j].lPrefix);
}
}
sort(lit.lPrefixes.begin(), lit.lPrefixes.end());
usedPrefixL.push_back(lit);
if ((uint32_t)lit.lPrefixes.size() > maxI) maxI = (uint32_t)lit.lPrefixes.size();
if ((uint32_t)lit.lPrefixes.size() < minI) minI = (uint32_t)lit.lPrefixes.size();
unique_sPrefix++;
}
if (loadingProgress)
printf("[Building lookup32 %.1f%%]\r", ((double)i * 100.0) / (double)prefixes.size());
}
if (loadingProgress)
printf("\n");
_difficulty = getDiffuclty();
string seachInfo = string(searchModes[searchMode]) + (startPubKeySpecified ? ", with public key" : "");
if (nbPrefix == 1) {
if (!caseSensitive) {
// Case unsensitive search
printf("Difficulty: %.0f\n", _difficulty);
printf("Search: %s [%s, Case unsensitive] (Lookup size %d)\n", inputPrefixes[0].c_str(), seachInfo.c_str(), unique_sPrefix);
}
else {
printf("Difficulty: %.0f\n", _difficulty);
printf("Search: %s [%s]\n", inputPrefixes[0].c_str(), seachInfo.c_str());
}
}
else {
if (onlyFull) {
printf("Search: %d addresses (Lookup size %d,[%d,%d]) [%s]\n", nbPrefix, unique_sPrefix, minI, maxI, seachInfo.c_str());
}
else {
printf("Search: %d prefixes (Lookup size %d) [%s]\n", nbPrefix, unique_sPrefix, seachInfo.c_str());
}
}
}
else {
// Wild card search
switch (inputPrefixes[0].data()[0]) {
case '1':
searchType = P2PKH;
break;
case '3':
searchType = P2SH;
break;
case 'b':
case 'B':
searchType = BECH32;
break;
default:
printf("Invalid start character 1,3 or b, expected");
exit(1);
}
string searchInfo = string(searchModes[searchMode]) + (startPubKeySpecified ? ", with public key" : "");
if (inputPrefixes.size() == 1) {
printf("Search: %s [%s]\n", inputPrefixes[0].c_str(), searchInfo.c_str());
}
else {
printf("Search: %d patterns [%s]\n", (int)inputPrefixes.size(), searchInfo.c_str());
}
patternFound = (bool*)malloc(inputPrefixes.size() * sizeof(bool));
memset(patternFound, 0, inputPrefixes.size() * sizeof(bool));
}
// Compute Generator table G[n] = (n+1)*G
Point g = Secp256K1::G;
Gn[0] = g;
g = Secp256K1::DoubleDirect(g);
Gn[1] = g;
for (int i = 2; i < CPU_GRP_SIZE / 2; i++) {
g = Secp256K1::AddDirect(g, Secp256K1::G);
Gn[i] = g;
}
// _2Gn = CPU_GRP_SIZE*G
_2Gn = Secp256K1::DoubleDirect(Gn[CPU_GRP_SIZE / 2 - 1]);
// Constant for endomorphism
// if a is a nth primitive root of unity, a^-1 is also a nth primitive root.
// beta^3 = 1 mod p implies also beta^2 = beta^-1 mop (by multiplying both side by beta^-1)
// (beta^3 = 1 mod p), beta2 = beta^-1 = beta^2
// (lambda^3 = 1 mod n), lamba2 = lamba^-1 = lamba^2
beta.SetBase16("7ae96a2b657c07106e64479eac3434e99cf0497512f58995c1396c28719501ee");
lambda.SetBase16("5363ad4cc05c30e0a5261c028812645a122e22ea20816678df02967c1b23bd72");
beta2.SetBase16("851695d49a83f8ef919bb86153cbcb16630fb68aed0a766a3ec693d68e6afa40");
lambda2.SetBase16("ac9c52b33fa3cf1f5ad9e3fd77ed9ba4a880b9fc8ec739c2e0cfc810b51283ce");
if (this->startKey.IsZero())
{
// Seed
if (seed.length() == 0) {
// Default seed
seed = Timer::getSeed(32);
}
if (paranoiacSeed) {
seed += Timer::getSeed(32);
}
// Protect seed against "seed search attack" using pbkdf2_hmac_sha512
string salt = "VanitySearch";
unsigned char hseed[64];
pbkdf2_hmac_sha512(hseed, 64, (const uint8_t*)seed.c_str(), seed.length(),
(const uint8_t*)salt.c_str(), salt.length(),
2048);
sha256(hseed, 64, (unsigned char*)this->startKey.bits64);
}
char* ctimeBuff;
time_t now = time(NULL);
ctimeBuff = ctime(&now);
printf("Start %s", ctimeBuff);
if (rekey > 0) {
printf("Base Key: Randomly changed every %.0f Mkeys\n", (double)rekey);
}
else {
printf("Base Key: %s\n", this->startKey.GetBase16().c_str());
}
}
// ----------------------------------------------------------------------------
bool VanitySearch::isSingularPrefix(std::string pref) {
// check is the given prefix contains only 1
bool only1 = true;
int i = 0;
while (only1 && i < (int)pref.length()) {
only1 = pref.data()[i] == '1';
i++;
}
return only1;
}
// ----------------------------------------------------------------------------
bool VanitySearch::initPrefix(std::string& prefix, PREFIX_ITEM* it) {
std::vector<unsigned char> result;
string dummy1 = prefix;
int nbDigit = 0;
bool wrong = false;
if (prefix.length() < 2) {
printf("Ignoring prefix \"%s\" (too short)\n", prefix.c_str());
return false;
}
int aType = -1;
if (searchMode == SEARCH_PUBLICKEYS) {
std::transform(prefix.begin(), prefix.end(), prefix.begin(), ::toupper);
if (prefix.size() > 128)
{
printf("Ignoring prefix \"%s\" 128 characters max\n", prefix.c_str());
return false;
}
if (prefix.size() % 2 != 0)
{
printf("Ignoring prefix \"%s\" length of prefix should be even (full bytes)\n", prefix.c_str());
return false;
}
Point pt;
pt.Clear();
if (prefix.size() <= 64)
{
pt.x.SetBase16((char*)prefix.c_str());
pt.x.ShiftL((64 - prefix.size()) * 4);
}
else
{
pt.x.SetBase16((char*)prefix.substr(0, 64).c_str());
pt.y.SetBase16((char*)prefix.substr(64).c_str());
pt.y.ShiftL((64 - (prefix.size() - 64)) * 4);
}
it->sPrefix = *(prefix_t*)&pt.x.bits16[NB16BLOCK - 5];
it->difficulty = pow(2, 5 * (prefix.length() - 4));
it->isFull = false;
it->lPrefix = *(prefixl_t*)&pt.x.bits32[NB32BLOCK - 3];
it->prefix = (char*)prefix.c_str();
it->prefixLength = (int)prefix.length();
it->pubkeylen = prefix.size() / 2;
it->pubkey = pt;
return true;
}
else {
switch (prefix.data()[0]) {
case '1':
aType = P2PKH;
break;
case '3':
aType = P2SH;
break;
case 'b':
case 'B':
std::transform(prefix.begin(), prefix.end(), prefix.begin(), ::tolower);
if (strncmp(prefix.c_str(), "bc1q", 4) == 0)
aType = BECH32;
break;
}
if (aType == -1) {
printf("Ignoring prefix \"%s\" (must start with 1 or 3 or bc1q)\n", prefix.c_str());
return false;
}
if (searchType == -1) searchType = aType;
if (aType != searchType) {
printf("Ignoring prefix \"%s\" (P2PKH, P2SH or BECH32 allowed at once)\n", prefix.c_str());
return false;
}
if (aType == BECH32) {
// BECH32
uint8_t witprog[40];
size_t witprog_len;
int witver;
const char* hrp = "bc";
int ret = segwit_addr_decode(&witver, witprog, &witprog_len, hrp, prefix.c_str());
// Try to attack a full address ?
if (ret && witprog_len == 20) {
// mamma mia !
it->difficulty = pow(2, 160);
it->isFull = true;
memcpy(it->hash160, witprog, 20);
it->sPrefix = *(prefix_t*)(it->hash160);
it->lPrefix = *(prefixl_t*)(it->hash160);
it->prefix = (char*)prefix.c_str();
it->prefixLength = (int)prefix.length();
return true;
}
if (prefix.length() < 5) {
printf("Ignoring prefix \"%s\" (too short, length<5 )\n", prefix.c_str());
return false;
}
if (prefix.length() >= 36) {
printf("Ignoring prefix \"%s\" (too long, length>36 )\n", prefix.c_str());
return false;
}
uint8_t data[64];
memset(data, 0, 64);
size_t data_length;
if (!bech32_decode_nocheck(data, &data_length, prefix.c_str() + 4)) {
printf("Ignoring prefix \"%s\" (Only \"023456789acdefghjklmnpqrstuvwxyz\" allowed)\n", prefix.c_str());
return false;
}
// Difficulty
it->sPrefix = *(prefix_t*)data;
it->difficulty = pow(2, 5 * (prefix.length() - 4));
it->isFull = false;
it->lPrefix = 0;
it->prefix = (char*)prefix.c_str();
it->prefixLength = (int)prefix.length();
return true;
}
else {
// P2PKH/P2SH
wrong = !DecodeBase58(prefix, result);
if (wrong) {
if (caseSensitive)
printf("Ignoring prefix \"%s\" (0, I, O and l not allowed)\n", prefix.c_str());
return false;
}
// Try to attack a full address ?
if (result.size() > 21) {
// mamma mia !
//if (!secp.CheckPudAddress(prefix)) {
// printf("Warning, \"%s\" (address checksum may never match)\n", prefix.c_str());
//}
it->difficulty = pow(2, 160);
it->isFull = true;
memcpy(it->hash160, result.data() + 1, 20);
it->sPrefix = *(prefix_t*)(it->hash160);
it->lPrefix = *(prefixl_t*)(it->hash160);
it->prefix = (char*)prefix.c_str();
it->prefixLength = (int)prefix.length();
return true;
}
// Prefix containing only '1'
if (isSingularPrefix(prefix)) {
if (prefix.length() > 21) {
printf("Ignoring prefix \"%s\" (Too much 1)\n", prefix.c_str());
return false;
}
// Difficulty
it->difficulty = pow(256, prefix.length() - 1);
it->isFull = false;
it->sPrefix = 0;
it->lPrefix = 0;
it->prefix = (char*)prefix.c_str();
it->prefixLength = (int)prefix.length();
return true;
}
// Search for highest hash160 16bit prefix (most probable)
while (result.size() < 25) {
DecodeBase58(dummy1, result);
if (result.size() < 25) {
dummy1.append("1");
nbDigit++;
}
}
if (searchType == P2SH) {
if (result.data()[0] != 5) {
if (caseSensitive)
printf("Ignoring prefix \"%s\" (Unreachable, 31h1 to 3R2c only)\n", prefix.c_str());
return false;
}
}
if (result.size() != 25) {
printf("Ignoring prefix \"%s\" (Invalid size)\n", prefix.c_str());
return false;
}
//printf("VanitySearch: Found prefix %s\n",GetHex(result).c_str() );
it->sPrefix = *(prefix_t*)(result.data() + 1);
dummy1.append("1");
DecodeBase58(dummy1, result);
if (result.size() == 25) {
//printf("VanitySearch: Found prefix %s\n", GetHex(result).c_str());
it->sPrefix = *(prefix_t*)(result.data() + 1);
nbDigit++;
}
// Difficulty
it->difficulty = pow(2, 192) / pow(58, nbDigit);
it->isFull = false;
it->lPrefix = 0;
it->prefix = (char*)prefix.c_str();
it->prefixLength = (int)prefix.length();
return true;
}
}
}
// ----------------------------------------------------------------------------
void VanitySearch::dumpPrefixes() {
for (int i = 0; i < 0xFFFF; i++) {
if (prefixes[i].items) {
printf("%04X\n", i);
for (int j = 0; j < (int)prefixes[i].items->size(); j++) {
printf(" %d\n", (*prefixes[i].items)[j].sPrefix);
printf(" %g\n", (*prefixes[i].items)[j].difficulty);
printf(" %s\n", (*prefixes[i].items)[j].prefix);
}
}
}
}
// ----------------------------------------------------------------------------
void VanitySearch::enumCaseUnsentivePrefix(std::string s, std::vector<std::string>& list) {
char letter[64];
int letterpos[64];
int nbLetter = 0;
int length = (int)s.length();
for (int i = 1; i < length; i++) {
char c = s.data()[i];
if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
letter[nbLetter] = tolower(c);
letterpos[nbLetter] = i;
nbLetter++;
}
}
int total = 1 << nbLetter;
for (int i = 0; i < total; i++) {
char tmp[64];
strcpy(tmp, s.c_str());
for (int j = 0; j < nbLetter; j++) {
int mask = 1 << j;
if (mask & i) tmp[letterpos[j]] = toupper(letter[j]);
else tmp[letterpos[j]] = letter[j];
}
list.push_back(string(tmp));
}
}
// ----------------------------------------------------------------------------
double VanitySearch::getDiffuclty() {
double min = pow(2, 160);
if (onlyFull)
return min;
for (int i = 0; i < (int)usedPrefix.size(); i++) {
int p = usedPrefix[i];
if (prefixes[p].items) {
for (int j = 0; j < (int)prefixes[p].items->size(); j++) {
if (!*((*prefixes[p].items)[j].found)) {
if ((*prefixes[p].items)[j].difficulty < min)
min = (*prefixes[p].items)[j].difficulty;
}
}
}
}
return min;
}
double log1(double x) {
// Use taylor series to approximate log(1-x)
return -x - (x * x) / 2.0 - (x * x * x) / 3.0 - (x * x * x * x) / 4.0;
}
string VanitySearch::GetExpectedTime(double keyRate, double keyCount) {
char tmp[128];
string ret;
if (hasPattern)
return "";
double P = 1.0 / _difficulty;
// pow(1-P,keyCount) is the probality of failure after keyCount tries
double cP = 1.0 - pow(1 - P, keyCount);
sprintf(tmp, "[Prob %.1f%%]", cP * 100.0);
ret = string(tmp);
double desiredP = 0.5;
while (desiredP < cP)
desiredP += 0.1;
if (desiredP >= 0.99) desiredP = 0.99;
double k = log(1.0 - desiredP) / log(1.0 - P);
if (isinf(k)) {
// Try taylor
k = log(1.0 - desiredP) / log1(P);
}
double dTime = (k - keyCount) / keyRate; // Time to perform k tries
if (dTime < 0) dTime = 0;
double nbDay = dTime / 86400.0;
if (nbDay >= 1) {
double nbYear = nbDay / 365.0;
if (nbYear > 1) {
if (nbYear < 5)
sprintf(tmp, "[%.f%% in %.1fy]", desiredP * 100.0, nbYear);
else
sprintf(tmp, "[%.f%% in %gy]", desiredP * 100.0, nbYear);
}
else {
sprintf(tmp, "[%.f%% in %.1fd]", desiredP * 100.0, nbDay);
}
}
else {
int iTime = (int)dTime;
int nbHour = (int)((iTime % 86400) / 3600);
int nbMin = (int)(((iTime % 86400) % 3600) / 60);
int nbSec = (int)(iTime % 60);
sprintf(tmp, "[%.f%% in %02d:%02d:%02d]", desiredP * 100.0, nbHour, nbMin, nbSec);
}
return ret + string(tmp);
}
// ----------------------------------------------------------------------------
void VanitySearch::output(string addr, string pAddr, string pPubKey, string pAddrHex) {
#ifdef WIN64
WaitForSingleObject(ghMutex, INFINITE);
#else
pthread_mutex_lock(&ghMutex);
#endif
FILE* f = stdout;
bool needToClose = false;
if (outputFile.length() > 0) {
f = fopen(outputFile.c_str(), "a");
if (f == NULL) {
printf("Cannot open %s for writing\n", outputFile.c_str());
f = stdout;
}
else {
needToClose = true;
}
}
if (!needToClose)
printf("\n");
fprintf(f, "PubAddress: %s\n", addr.c_str());
if (searchMode == SEARCH_PUBLICKEYS)
{
fprintf(f, "PubKey: %s\n", pPubKey.c_str());
}
if (startPubKeySpecified) {
fprintf(f, "PartialPriv: %s\n", pAddr.c_str());
}
else {
switch (searchType) {
case P2PKH:
fprintf(f, "Priv (WIF): p2pkh:%s\n", pAddr.c_str());
break;
case P2SH:
fprintf(f, "Priv (WIF): p2wpkh-p2sh:%s\n", pAddr.c_str());
break;
case BECH32:
fprintf(f, "Priv (WIF): p2wpkh:%s\n", pAddr.c_str());
break;
}
fprintf(f, "Priv (HEX): 0x%s\n", pAddrHex.c_str());
}
if (needToClose)
fclose(f);
#ifdef WIN64
ReleaseMutex(ghMutex);
#else
pthread_mutex_unlock(&ghMutex);
#endif
}
// ----------------------------------------------------------------------------
void VanitySearch::updateFound() {
// Check if all prefixes has been found
// Needed only if stopWhenFound is asked
if (stopWhenFound) {
if (hasPattern) {
bool allFound = true;
for (int i = 0; i < (int)inputPrefixes.size(); i++) {
allFound &= patternFound[i];
}
endOfSearch = allFound;
}
else {
bool allFound = true;
for (int i = 0; i < (int)usedPrefix.size(); i++) {
bool iFound = true;
prefix_t p = usedPrefix[i];
if (!prefixes[p].found) {
if (prefixes[p].items) {
for (int j = 0; j < (int)prefixes[p].items->size(); j++) {
iFound &= *((*prefixes[p].items)[j].found);
}
}
prefixes[usedPrefix[i]].found = iFound;
}
allFound &= iFound;
}
endOfSearch = allFound;
// Update difficulty to the next most probable item
_difficulty = getDiffuclty();
}
}
}
// ----------------------------------------------------------------------------
bool VanitySearch::checkPrivKey(string addr, const Int& key, int32_t incr, int endomorphism, bool mode) {
Int k(key);
Point sp = startPubKey;
if (incr < 0) {
k.Add((uint64_t)(-incr));
k.Neg();
k.Add(Secp256K1::order);
if (startPubKeySpecified) sp.y.ModNeg();
}
else {
k.Add((uint64_t)incr);
}
// Endomorphisms
switch (endomorphism) {
case 1:
k.ModMulK1order(lambda);
if (startPubKeySpecified) sp.x.ModMulK1(beta);
break;
case 2:
k.ModMulK1order(lambda2);
if (startPubKeySpecified) sp.x.ModMulK1(beta2);
break;
}
// Check addresses
Point p = Secp256K1::ComputePublicKey(k);
if (startPubKeySpecified) p = Secp256K1::AddDirect(p, sp);
string chkAddr = Secp256K1::GetAddress(searchType, mode, p);
if (chkAddr != addr) {
//Key may be the opposite one (negative zero or compressed key)
k.Neg();
k.Add(Secp256K1::order);
p = Secp256K1::ComputePublicKey(k);
if (startPubKeySpecified) {
sp.y.ModNeg();
p = Secp256K1::AddDirect(p, sp);
}
string chkAddr = Secp256K1::GetAddress(searchType, mode, p);
if (chkAddr != addr) {
printf("\nWarning, wrong private key generated !\n");
printf(" Addr :%s\n", addr.c_str());
printf(" Check:%s\n", chkAddr.c_str());
printf(" Endo:%d incr:%d comp:%d\n", endomorphism, incr, mode);
return false;
}
}
output(addr, Secp256K1::GetPrivAddress(mode, k), p.toString(), k.GetBase16());
return true;
}
void VanitySearch::checkAddrSSE(uint8_t* h1, uint8_t* h2, uint8_t* h3, uint8_t* h4,
int32_t incr1, int32_t incr2, int32_t incr3, int32_t incr4,
Int& key, int endomorphism, bool mode) {
vector<string> addr = Secp256K1::GetAddress(searchType, mode, h1, h2, h3, h4);
for (int i = 0; i < (int)inputPrefixes.size(); i++) {
if (Wildcard::match(addr[0].c_str(), inputPrefixes[i].c_str(), caseSensitive)) {
// Found it !
//*((*pi)[i].found) = true;
if (checkPrivKey(addr[0], key, incr1, endomorphism, mode)) {
nbFoundKey++;
patternFound[i] = true;
updateFound();
}
}
if (Wildcard::match(addr[1].c_str(), inputPrefixes[i].c_str(), caseSensitive)) {
// Found it !
//*((*pi)[i].found) = true;
if (checkPrivKey(addr[1], key, incr2, endomorphism, mode)) {
nbFoundKey++;
patternFound[i] = true;
updateFound();
}
}
if (Wildcard::match(addr[2].c_str(), inputPrefixes[i].c_str(), caseSensitive)) {
// Found it !
//*((*pi)[i].found) = true;
if (checkPrivKey(addr[2], key, incr3, endomorphism, mode)) {
nbFoundKey++;
patternFound[i] = true;
updateFound();
}
}
if (Wildcard::match(addr[3].c_str(), inputPrefixes[i].c_str(), caseSensitive)) {
// Found it !
//*((*pi)[i].found) = true;
if (checkPrivKey(addr[3], key, incr4, endomorphism, mode)) {
nbFoundKey++;
patternFound[i] = true;
updateFound();
}
}
}
}
bool pubKeyCompare(const Point& pt1, const Point& pt2, int len)
{
int idx = 0;
while (idx < len)
{
if (pt1.x.bits08[31 - idx] != pt2.x.bits08[31 - idx])
{
return false;
}
++idx;
}
len -= 32;
while (idx < len)
{
if (pt1.y.bits08[31 - idx] != pt2.y.bits08[31 - idx])
{
return false;
}
++idx;
}
return true;
}
void VanitySearch::checkPubKey(int pi, const Int& key, int32_t incr, int endomorphism, const Point& pt) {
for (int i = 0; i < prefixes[pi].items->size(); ++i)
{
PREFIX_ITEM* preitm = &(*prefixes[pi].items)[i];
if(pubKeyCompare(pt, preitm->pubkey, preitm->pubkeylen))
{
if (checkPrivKey(Secp256K1::GetAddress(P2PKH, false, pt), key, incr, endomorphism, false))
{
nbFoundKey++;
updateFound();
}