Topic: Vanitygen: Vanity bitcoin address generator/miner [v0.22] - page 50. (Read 1153678 times)

./vanitygen -i 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 1g 1h 1i 1j 1k 1l 1m 1n 1o 1p 1q 1r 1s 1t 1u 1v 1w 1x 1y 1z -o tempfile.txt -q -k

C:\Users\Acer>C:\Users\Acer\Downloads\vanitygen-0.22-win\oclvanitygen.exe -o boat.txt 1Boat
Difficulty: 4476342
Error loading kernel file 'calc_addrs.cl': No such file or directory
Available OpenCL platforms:
0: [NVIDIA Corporation] NVIDIA CUDA
  0: [NVIDIA Corporation] GeForce GT 540M

* Address search thread main loop
 */

void *
vg_thread_loop(void *arg)
{
unsigned char hash_buf[128];
unsigned char *eckey_buf;
unsigned char hash1[32];

int i, c, len, output_interval;
int hash_len;

const BN_ULONG rekey_max = 10000000;
BN_ULONG npoints, rekey_at, nbatch;

vg_context_t *vcp = (vg_context_t *) arg;
EC_KEY *pkey = NULL;
const EC_GROUP *pgroup;
const EC_POINT *pgen;
const int ptarraysize = 256;
EC_POINT *ppnt[ptarraysize];
EC_POINT *pbatchinc;

vg_test_func_t test_func = vcp->vc_test;
vg_exec_context_t ctx;
vg_exec_context_t *vxcp;

struct timeval tvstart;


memset(&ctx, 0, sizeof(ctx));
vxcp = &ctx;

vg_exec_context_init(vcp, &ctx);

pkey = vxcp->vxc_key;
pgroup = EC_KEY_get0_group(pkey);
pgen = EC_GROUP_get0_generator(pgroup);

for (i = 0; i < ptarraysize; i++) {
ppnt[i] = EC_POINT_new(pgroup);
if (!ppnt[i]) {
fprintf(stderr, "ERROR: out of memory?\n");
exit(1);
}
}
pbatchinc = EC_POINT_new(pgroup);
if (!pbatchinc) {
fprintf(stderr, "ERROR: out of memory?\n");
exit(1);
}

BN_set_word(&vxcp->vxc_bntmp, ptarraysize);
EC_POINT_mul(pgroup, pbatchinc, &vxcp->vxc_bntmp, NULL, NULL,
     vxcp->vxc_bnctx);
EC_POINT_make_affine(pgroup, pbatchinc, vxcp->vxc_bnctx);

npoints = 0;
rekey_at = 0;
nbatch = 0;
vxcp->vxc_key = pkey;
vxcp->vxc_binres[0] = vcp->vc_addrtype;
c = 0;
output_interval = 1000;
gettimeofday(&tvstart, NULL);

if (vcp->vc_format == VCF_SCRIPT) {
hash_buf[ 0] = 0x51;  // OP_1
hash_buf[ 1] = 0x41;  // pubkey length
// gap for pubkey
hash_buf[67] = 0x51;  // OP_1
hash_buf[68] = 0xae;  // OP_CHECKMULTISIG
eckey_buf = hash_buf + 2;
hash_len = 69;

} else {
eckey_buf = hash_buf;
hash_len = 65;
}

while (!vcp->vc_halt) {
if (++npoints >= rekey_at) {
vg_exec_context_upgrade_lock(vxcp);
/* Generate a new random private key */
EC_KEY_generate_key(pkey);
npoints = 0;

/* Determine rekey interval */
EC_GROUP_get_order(pgroup, &vxcp->vxc_bntmp,
   vxcp->vxc_bnctx);
BN_sub(&vxcp->vxc_bntmp2,
       &vxcp->vxc_bntmp,
       EC_KEY_get0_private_key(pkey));
rekey_at = BN_get_word(&vxcp->vxc_bntmp2);
if ((rekey_at == BN_MASK2) || (rekey_at > rekey_max))
rekey_at = rekey_max;
assert(rekey_at > 0);

EC_POINT_copy(ppnt[0], EC_KEY_get0_public_key(pkey));
vg_exec_context_downgrade_lock(vxcp);

npoints++;
vxcp->vxc_delta = 0;

if (vcp->vc_pubkey_base)
EC_POINT_add(pgroup,
     ppnt[0],
     ppnt[0],
     vcp->vc_pubkey_base,
     vxcp->vxc_bnctx);

for (nbatch = 1;
     (nbatch < ptarraysize) && (npoints < rekey_at);
     nbatch++, npoints++) {
EC_POINT_add(pgroup,
     ppnt[nbatch],
     ppnt[nbatch-1],
     pgen, vxcp->vxc_bnctx);
}