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oclvanitygen.c
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oclvanitygen.c
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/*
* Vanitygen, vanity bitcoin address generator
* Copyright (C) 2011 <samr7@cs.washington.edu>
*
* Vanitygen is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* Vanitygen 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Vanitygen. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <assert.h>
#include <openssl/ec.h>
#include <openssl/bn.h>
#include <openssl/rand.h>
#include "oclengine.h"
#include "pattern.h"
#include "util.h"
int GRSFlag = 0;
const char *version = VANITYGEN_VERSION;
const int debug = 0;
void
usage(const char *name)
{
fprintf(stderr,
"oclVanitygen %s (" OPENSSL_VERSION_TEXT ")\n"
"Usage: %s [-vqrik1NTS] [-d <device>] [-f <filename>|-] [<pattern>...]\n"
"Generates a bitcoin receiving address matching <pattern>, and outputs the\n"
"address and associated private key. The private key may be stored in a safe\n"
"location or imported into a bitcoin client to spend any balance received on\n"
"the address.\n"
"By default, <pattern> is interpreted as an exact prefix.\n"
"By default, if no device is specified, and the system has exactly one OpenCL\n"
"device, it will be selected automatically, otherwise if the system has\n"
"multiple OpenCL devices and no device is specified, an error will be\n"
"reported. To use multiple devices simultaneously, specify the -D option for\n"
"each device.\n"
"\n"
"Options:\n"
"-v Verbose output\n"
"-q Quiet output\n"
"-r Use regular expression match instead of prefix\n"
" (Feasibility of expression is not checked)\n"
"-i Case-insensitive prefix search\n"
"-k Keep pattern and continue search after finding a match\n"
"-1 Stop after first match\n"
"-C <altcoin> Generate an address for specific altcoin, use \"-C LIST\" to view\n"
" a list of all available altcoins, argument is case sensetive!\n"
"-X <version> Generate address with the given version\n"
"-Y <version> Specify private key version (-X provides public key)\n"
"-F <format> Generate address with the given format (pubkey, compressed)\n"
"-P <pubkey> Use split-key method with <pubkey> as base public key\n"
"-e Encrypt private keys, prompt for password\n"
"-E <password> Encrypt private keys with <password> (UNSAFE)\n"
"-p <platform> Select OpenCL platform\n"
"-d <device> Select OpenCL device\n"
"-D <devstr> Use OpenCL device, identified by device string\n"
" Form: <platform>:<devicenumber>[,<options>]\n"
" Example: 0:0,grid=1024x1024\n"
"-S Safe mode, disable OpenCL loop unrolling optimizations\n"
"-w <worksize> Set work items per thread in a work unit\n"
"-t <threads> Set target thread count per multiprocessor\n"
"-g <x>x<y> Set grid size\n"
"-b <invsize> Set modular inverse ops per thread\n"
"-V Enable kernel/OpenCL/hardware verification (SLOW)\n"
"-f <file> File containing list of patterns, one per line\n"
" (Use \"-\" as the file name for stdin)\n"
"-o <file> Write pattern matches to <file>\n"
"-s <file> Seed random number generator from <file>\n",
version, name);
}
#define MAX_DEVS 32
#define MAX_FILE 4
int
main(int argc, char **argv)
{
int addrtype = 0;
int privtype = 128;
int regex = 0;
int caseinsensitive = 0;
int opt;
char pwbuf[128];
int platformidx = -1, deviceidx = -1;
int prompt_password = 0;
char *seedfile = NULL;
char **patterns, *pend;
int verbose = 1;
int npatterns = 0;
int nthreads = 0;
int worksize = 0;
int nrows = 0, ncols = 0;
int invsize = 0;
int remove_on_match = 1;
int only_one = 0;
int verify_mode = 0;
int safe_mode = 0;
vg_context_t *vcp = NULL;
vg_ocl_context_t *vocp = NULL;
EC_POINT *pubkey_base = NULL;
const char *result_file = NULL;
const char *key_password = NULL;
char *devstrs[MAX_DEVS];
int ndevstrs = 0;
int opened = 0;
FILE *pattfp[MAX_FILE], *fp;
int pattfpi[MAX_FILE];
int npattfp = 0;
int pattstdin = 0;
int compressed = 0;
int i;
while ((opt = getopt(argc, argv,
"vqrik1C:X:Y:F:eE:p:P:d:w:t:g:b:VSh?f:o:s:D:")) != -1) {
switch (opt) {
case 'r':
regex = 1;
break;
case 'v':
verbose = 2;
break;
case 'q':
verbose = 0;
break;
case 'i':
caseinsensitive = 1;
break;
case 'k':
remove_on_match = 0;
break;
case '1':
only_one = 1;
break;
/*BEGIN ALTCOIN GENERATOR*/
case 'C':
/* Start AltCoin Generator */
if (strcmp(optarg, "LIST")== 0) {
fprintf(stderr,
"Usage example \"./oclvanitygen -C LTC Lfoo\"\n"
"List of Available Alt-Coins for Address Generation\n"
"---------------------------------------------------\n"
"Argument(UPPERCASE) : Coin : Address Prefix\n"
"---------------\n"
"42 : 42coin : 4\n"
"AC : Asiacoin : A\n"
"AIB : Advanced Internet Block by IOBOND : A\n"
"ANC : Anoncoin : A\n"
"ARS : Arkstone : A\n"
"AUR : Auroracoin : A\n"
"BLK : Blackcoin : B\n"
"BQC : BBQcoin : b\n"
"BTC : Bitcoin : 1\n"
"TEST : Bitcoin Testnet : m or n\n"
"BTCD : Bitcoin Dark : R\n"
"CCC : Chococoin : 7\n"
"CCN : Cannacoin : C\n"
"CDN : Canadaecoin : C\n"
"CLAM : Clamcoin : x\n"
"CNC : Chinacoin : C\n"
"CON : PayCon : P\n"
"DASH : Dash : X\n"
"DGB : Digibyte : D\n"
"DGC : Digitalcoin : D\n"
"DOGED : Doge Dark Coin : D\n"
"DOGE : Dogecoin : D\n"
"DOPE : Dopecoin : 4\n"
"DVC : Devcoin : 1\n"
"EFL : Electronic-Gulden-Foundation : L\n"
"FAIR : Faircoin2 : f\n"
"FLOZ : FLOZ : F\n"
"FTC : Feathercoin : 6 or 7\n"
"GAP : Gapcoin : G\n"
"GCR : Global Currency Reserve : G\n"
"GRC : GridcoinResearch : R or S\n"
"GUN : Guncoin : G or H\n"
"HAM : HamRadiocoin : 1\n"
"HODL : HOdlcoin : H\n"
"IXC : Ixcoin : x\n"
"JBS : Jumbucks : J\n"
"LBRY : LBRY : b\n"
"LEAF : Leafcoin : f\n"
"LTC : Litecoin : L\n"
"MMC : Memorycoin : M\n"
"MONA : Monacoin : M\n"
"MUE : Monetary Unit : 7\n"
"MYRIAD : Myriadcoin : M\n"
"MZC : Mazacoin : M\n"
"NEOS : Neoscoin : S\n"
"NLG : Gulden : G\n"
"NMC : Namecoin : M or N\n"
"NVC : Novacoin : 4\n"
"NYAN : Nyancoin : K\n"
"OK : OK Cash : P\n"
"OMC : Omnicoin : o\n"
"PIGGY : Piggycoin : p\n"
"PKB : Parkbyte : P\n"
"PND : Pandacoin : P\n"
"POT : Potcoin : P\n"
"PPC : Peercoin : P\n"
"PTC : Pesetacoin : K\n"
"PTS : Protoshares : P\n"
"RBY : Rubycoin : R\n"
"RDD : Reddcoin : R\n"
"RIC : Riecoin : R\n"
"SCA : Scamcoin : S\n"
"SDC : Shadowcoin : S\n"
"SKC : Skeincoin : S\n"
"SPR : Spreadcoin : S\n"
"START : Startcoin : s\n"
"SXC : Sexcoin : R or S\n"
"TPC : Templecoin : T\n"
"UIS : Unitus : U\n"
"UNO : Unobtanium : u\n"
"VIA : Viacoin : V\n"
"VPN : Vpncoin : V\n"
"VTC : Vertcoin : V\n"
"WDC : Worldcoin Global : W\n"
"WKC : Wankcoin : 1\n"
"WUBS : Dubstepcoin : D\n"
"XC : XCurrency : X\n"
"XPM : Primecoin : A\n"
"YAC : Yacoin : Y\n"
"ZOOM : Zoom coin : i\n"
"ZRC : Ziftrcoin : Z\n"
);
return 1;
}
else
if (strcmp(optarg, "GUN")== 0) {
fprintf(stderr,
"Generating GUN Address\n");
addrtype = 39;
privtype = 167;
break;
}
else
if (strcmp(optarg, "HAM")== 0) {
fprintf(stderr,
"Generating HAM Address\n");
addrtype = 0;
privtype = 128;
break;
}
else
if (strcmp(optarg, "DVC")== 0) {
fprintf(stderr,
"Generating DVC Address\n");
addrtype = 0;
privtype = 128;
break;
}
else
if (strcmp(optarg, "42")== 0) {
fprintf(stderr,
"Generating 42 Address\n");
addrtype = 8;
privtype = 136;
break;
}
else
if (strcmp(optarg, "WKC")== 0) {
fprintf(stderr,
"Generating WKC Address\n");
addrtype = 0;
privtype = 128;
break;
}
else
if (strcmp(optarg, "SPR")== 0) {
fprintf(stderr,
"Generating SPR Address\n");
addrtype = 63;
privtype = 191;
break;
}
else
if (strcmp(optarg, "SCA")== 0) {
fprintf(stderr,
"Generating SCA Address\n");
addrtype = 63;
privtype = 191;
break;
}
else
if (strcmp(optarg, "GAP")== 0) {
fprintf(stderr,
"Generating GAP Address\n");
addrtype = 38;
privtype = 166;
break;
}
else
if (strcmp(optarg, "CCC")== 0) {
fprintf(stderr,
"Generating CCC Address\n");
addrtype = 15;
privtype = 224;
break;
}
else
if (strcmp(optarg, "PIGGY")== 0) {
fprintf(stderr,
"Generating PIGGY Address\n");
addrtype = 118;
privtype = 246;
break;
}
else
if (strcmp(optarg, "WDC")== 0) {
fprintf(stderr,
"Generating WDC Address\n");
addrtype = 73;
privtype = 201;
break;
}
else
if (strcmp(optarg, "XC")== 0) {
fprintf(stderr,
"Generating XC Address\n");
addrtype = 75;
privtype = 203;
break;
}
else
if (strcmp(optarg, "WUBS")== 0) {
fprintf(stderr,
"Generating WUBS Address\n");
addrtype = 29;
privtype = 157;
break;
}
else
if (strcmp(optarg, "SXC")== 0) {
fprintf(stderr,
"Generating SXC Address\n");
addrtype = 62;
privtype = 190;
break;
}
else
if (strcmp(optarg, "SKC")== 0) {
fprintf(stderr,
"Generating SKC Address\n");
addrtype = 63;
privtype = 191;
break;
}
else
if (strcmp(optarg, "PTS")== 0) {
fprintf(stderr,
"Generating PTS Address\n");
addrtype = 56;
privtype = 184;
break;
}
else
if (strcmp(optarg, "NLG")== 0) {
fprintf(stderr,
"Generating NLG Address\n");
addrtype = 38;
privtype = 166;
break;
}
else
if (strcmp(optarg, "MMC")== 0) {
fprintf(stderr,
"Generating MMC Address\n");
addrtype = 50;
privtype = 178;
break;
}
else
if (strcmp(optarg, "LEAF")== 0) {
fprintf(stderr,
"Generating LEAF Address\n");
addrtype = 95;
privtype = 223;
break;
}
else
if (strcmp(optarg, "HODL")== 0) {
fprintf(stderr,
"Generating HODL Address\n");
addrtype = 40;
privtype = 168;
break;
}
else
if (strcmp(optarg, "FLOZ")== 0) {
fprintf(stderr,
"Generating FLOZ Address\n");
addrtype = 35;
privtype = 163;
break;
}
else
if (strcmp(optarg, "FAIR")== 0) {
fprintf(stderr,
"Generating FAIR Address\n");
addrtype = 95;
privtype = 223;
break;
}
else
if (strcmp(optarg, "CON")== 0) {
fprintf(stderr,
"Generating CON Address\n");
addrtype = 55;
privtype = 183;
break;
}
else
if (strcmp(optarg, "AUR")== 0) {
fprintf(stderr,
"Generating AUR Address\n");
addrtype = 23;
privtype = 151;
break;
}
else
if (strcmp(optarg, "GRC")== 0) {
fprintf(stderr,
"Generating GRC Address\n");
addrtype = 62;
privtype = 190;
break;
}
else
if (strcmp(optarg, "RIC")== 0) {
fprintf(stderr,
"Generating RIC Address\n");
addrtype = 60;
privtype = 128;
break;
}
else
if (strcmp(optarg, "UNO")== 0) {
fprintf(stderr,
"Generating UNO Address\n");
addrtype = 130;
privtype = 224;
break;
}
else
if (strcmp(optarg, "UIS")== 0) {
fprintf(stderr,
"Generating UIS Address\n");
addrtype = 68;
privtype = 132;
break;
}
else
if (strcmp(optarg, "MYRIAD")== 0) {
fprintf(stderr,
"Generating MYRIAD Address\n");
addrtype = 50;
privtype = 178;
break;
}
else
if (strcmp(optarg, "BQC")== 0) {
fprintf(stderr,
"Generating BQC Address\n");
addrtype = 85;
privtype = 213;
break;
}
else
if (strcmp(optarg, "YAC")== 0) {
fprintf(stderr,
"Generating YAC Address\n");
addrtype = 77;
privtype = 205;
break;
}
else
if (strcmp(optarg, "PTC")== 0) {
fprintf(stderr,
"Generating PTC Address\n");
addrtype = 47;
privtype = 175;
break;
}
else
if (strcmp(optarg, "RDD")== 0) {
fprintf(stderr,
"Generating RDD Address\n");
addrtype = 61;
privtype = 189;
break;
}
else
if (strcmp(optarg, "NYAN")== 0) {
fprintf(stderr,
"Generating NYAN Address\n");
addrtype = 45;
privtype = 173;
break;
}
else
if (strcmp(optarg, "IXC")== 0) {
fprintf(stderr,
"Generating IXC Address\n");
addrtype = 138;
privtype = 266;
break;
}
else
if (strcmp(optarg, "CNC")== 0) {
fprintf(stderr,
"Generating CNC Address\n");
addrtype = 28;
privtype = 156;
break;
}
else
if (strcmp(optarg, "ARS")== 0) {
fprintf(stderr,
"Generating ARS Address\n");
addrtype = 23;
privtype = 151;
break;
}
else
if (strcmp(optarg, "ANC")== 0) {
fprintf(stderr,
"Generating ANC Address\n");
addrtype = 23;
privtype = 151;
break;
}
else
if (strcmp(optarg, "OMC")== 0) {
fprintf(stderr,
"Generating OMC Address\n");
addrtype = 115;
privtype = 243;
break;
}
else
if (strcmp(optarg, "POT")== 0) {
fprintf(stderr,
"Generating POT Address\n");
addrtype = 55;
privtype = 183;
break;
}
else
if (strcmp(optarg, "EFL")== 0) {
fprintf(stderr,
"Generating EFL Address\n");
addrtype = 48;
privtype = 176;
break;
}
else
if (strcmp(optarg, "DOGED")== 0) {
fprintf(stderr,
"Generating DOGED Address\n");
addrtype = 30;
privtype = 158;
break;
}
else
if (strcmp(optarg, "OK")== 0) {
fprintf(stderr,
"Generating OK Address\n");
addrtype = 55;
privtype = 183;
break;
}
else
if (strcmp(optarg, "AIB")== 0) {
fprintf(stderr,
"Generating AIB Address\n");
addrtype = 23;
privtype = 151;
break;
}
else
if (strcmp(optarg, "TPC")== 0) {
fprintf(stderr,
"Generating TPC Address\n");
addrtype = 65;
privtype = 193;
break;
}
else
if (strcmp(optarg, "DOPE")== 0) {
fprintf(stderr,
"Generating DOPE Address\n");
addrtype = 8;
privtype = 136;
break;
}
else
if (strcmp(optarg, "BTCD")== 0) {
fprintf(stderr,
"Generating BTCD Address\n");
addrtype = 60;
privtype = 188;
break;
}
else
if (strcmp(optarg, "AC")== 0) {
fprintf(stderr,
"Generating AC Address\n");
addrtype = 23;
privtype = 151;
break;
}
else
if (strcmp(optarg, "NVC")== 0) {
fprintf(stderr,
"Generating NVC Address\n");
addrtype = 8;
privtype = 136;
break;
}
else
if (strcmp(optarg, "GCR")== 0) {
fprintf(stderr,
"Generating GCR Address\n");
addrtype = 38;
privtype = 154;
break;
}
else
if (strcmp(optarg, "START")== 0) {
fprintf(stderr,
"Generating START Address\n");
addrtype = 125;
privtype = 253;
break;
}
else
if (strcmp(optarg, "PND")== 0) {
fprintf(stderr,
"Generating PND Address\n");
addrtype = 55;
privtype = 183;
break;
}
else
if (strcmp(optarg, "PKB")== 0) {
fprintf(stderr,
"Generating PKB Address\n");
addrtype = 55;
privtype = 183;
break;
}
else
if (strcmp(optarg, "SDC")== 0) {
fprintf(stderr,
"Generating SDC Address\n");
addrtype = 63;
privtype = 191;
break;
}
else
if (strcmp(optarg, "CDN")== 0) {
fprintf(stderr,
"Generating CDN Address\n");
addrtype = 28;
privtype = 156;
break;
}
else
if (strcmp(optarg, "VPN")== 0) {
fprintf(stderr,
"Generating VPN Address\n");
addrtype = 71;
privtype = 199;
break;
}
else
if (strcmp(optarg, "ZOOM")== 0) {
fprintf(stderr,
"Generating ZOOM Address\n");
addrtype = 103;
privtype = 231;
break;
}
else
if (strcmp(optarg, "MUE")== 0) {
fprintf(stderr,
"Generating MUE Address\n");
addrtype = 15;
privtype = 143;
break;
}
else
if (strcmp(optarg, "VTC")== 0) {
fprintf(stderr,
"Generating VTC Address\n");
addrtype = 71;
privtype = 199;
break;
}
else
if (strcmp(optarg, "ZRC")== 0) {
fprintf(stderr,
"Generating ZRC Address\n");
addrtype = 80;
privtype = 208;
break;
}
else
if (strcmp(optarg, "JBS")== 0) {
fprintf(stderr,
"Generating JBS Address\n");
addrtype = 43;
privtype = 171;
break;
}
else
if (strcmp(optarg, "NEOS")== 0) {
fprintf(stderr,
"Generating NEOS Address\n");
addrtype = 63;
privtype = 239;
break;
}
else
if (strcmp(optarg, "XPM")== 0) {
fprintf(stderr,
"Generating XPM Address\n");
addrtype = 23;
privtype = 151;
break;
}
else
if (strcmp(optarg, "CLAM")== 0) {
fprintf(stderr,
"Generating CLAM Address\n");
addrtype = 137;
privtype = 133;
break;
}
else
if (strcmp(optarg, "MONA")== 0) {
fprintf(stderr,
"Generating MONA Address\n");
addrtype = 50;
privtype = 176;
break;
}
else
if (strcmp(optarg, "DGB")== 0) {
fprintf(stderr,
"Generating DGB Address\n");
addrtype = 30;
privtype = 128;
break;
}
else
if (strcmp(optarg, "CCN")== 0) {
fprintf(stderr,
"Generating CCN Address\n");
addrtype = 28;
privtype = 156;
break;
}
else
if (strcmp(optarg, "DGC")== 0) {
fprintf(stderr,
"Generating DGC Address\n");
addrtype = 30;
privtype = 158;
break;
}
else
if (strcmp(optarg, "RBY")== 0) {
fprintf(stderr,
"Generating RBY Address\n");
addrtype = 61;
privtype = 189;
break;
}
else
if (strcmp(optarg, "VIA")== 0) {
fprintf(stderr,
"Generating VIA Address\n");
addrtype = 71;
privtype = 199;
break;
}
else
if (strcmp(optarg, "MZC")== 0) {
fprintf(stderr,
"Generating MZC Address\n");
addrtype = 50;
privtype = 224;
break;
}
else
if (strcmp(optarg, "BLK")== 0) {
fprintf(stderr,
"Generating BLK Address\n");
addrtype = 25;
privtype = 153;
break;
}
else
if (strcmp(optarg, "FTC")== 0) {
fprintf(stderr,
"Generating FTC Address\n");
addrtype = 14;
privtype = 142;
break;
}
else
if (strcmp(optarg, "PPC")== 0) {
fprintf(stderr,
"Generating PPC Address\n");
addrtype = 55;
privtype = 183;
break;
}
else
if (strcmp(optarg, "DASH")== 0) {
fprintf(stderr,
"Generating DASH Address\n");
addrtype = 76;
privtype = 204;
break;
}
else
if (strcmp(optarg, "BTC")== 0) {
fprintf(stderr,
"Generating BTC Address\n");
addrtype = 0;
privtype = 128;
break;
}
else
if (strcmp(optarg, "TEST")== 0) {
fprintf(stderr,
"Generating BTC Testnet Address\n");
addrtype = 111;
privtype = 239;
break;
}
else
if (strcmp(optarg, "DOGE")== 0) {
fprintf(stderr,
"Generating DOGE Address\n");
addrtype = 30;
privtype = 158;
break;
}
else
if (strcmp(optarg, "LBRY")== 0) {
fprintf(stderr,
"Generating LBRY Address\n");
addrtype = 85;
privtype = 28;
break;
}
else
if (strcmp(optarg, "LTC")== 0) {
fprintf(stderr,
"Generating LTC Address\n");
addrtype = 48;
privtype = 176;
break;
}
else
if (strcmp(optarg, "NMC")== 0) {
fprintf(stderr,
"Generating NMC Address\n");
addrtype = 52;
privtype = 180;
break;
}
break;
/*END ALTCOIN GENERATOR*/
case 'X':
addrtype = atoi(optarg);
privtype = 128 + addrtype;
break;
case 'Y':
/* Overrides privtype of 'X' but leaves all else intact */
privtype = atoi(optarg);
break;
case 'F':
if (!strcmp(optarg, "compressed"))
compressed = 1;
else
if (strcmp(optarg, "pubkey")) {
fprintf(stderr,
"Invalid format '%s'\n", optarg);
return 1;
}
break;
case 'e':
prompt_password = 1;
break;
case 'E':
key_password = optarg;
break;
case 'p':
platformidx = atoi(optarg);
break;
case 'd':
deviceidx = atoi(optarg);
break;
case 'w':
worksize = atoi(optarg);
if (worksize == 0) {
fprintf(stderr,
"Invalid work size '%s'\n", optarg);
return 1;
}
break;
case 't':
nthreads = atoi(optarg);
if (nthreads == 0) {
fprintf(stderr,
"Invalid thread count '%s'\n", optarg);
return 1;
}
break;
case 'g':
nrows = 0;
ncols = strtol(optarg, &pend, 0);
if (pend && *pend == 'x') {
nrows = strtol(pend+1, NULL, 0);
}
if (!nrows || !ncols) {
fprintf(stderr,
"Invalid grid size '%s'\n", optarg);
return 1;
}
break;
case 'b':
invsize = atoi(optarg);
if (!invsize) {
fprintf(stderr,
"Invalid modular inverse size '%s'\n",
optarg);
return 1;
}
if (invsize & (invsize - 1)) {
fprintf(stderr,
"Modular inverse size must be "
"a power of 2\n");
return 1;
}
break;
case 'V':
verify_mode = 1;
break;
case 'S':
safe_mode = 1;
break;
case 'D':
if (ndevstrs >= MAX_DEVS) {
fprintf(stderr,
"Too many OpenCL devices (limit %d)\n",
MAX_DEVS);
return 1;
}
devstrs[ndevstrs++] = optarg;
break;
case 'P': {
if (pubkey_base != NULL) {
fprintf(stderr,
"Multiple base pubkeys specified\n");
return 1;
}
EC_KEY *pkey = vg_exec_context_new_key();
pubkey_base = EC_POINT_hex2point(
EC_KEY_get0_group(pkey),
optarg, NULL, NULL);
EC_KEY_free(pkey);
if (pubkey_base == NULL) {