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add Litecoin address and compressed address support

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This commit is contained in:
Scott Alfter
2013-05-16 10:29:03 -07:00
parent cd1a728243
commit 7ee7d9b0aa
5 changed files with 81 additions and 11 deletions
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16
pattern.c
View File

@@ -528,9 +528,14 @@ vg_output_match_console(vg_context_t *vcp, EC_KEY *pkey, const char *pattern)
}
assert(EC_KEY_check_key(pkey));
vg_encode_address(ppnt,
EC_KEY_get0_group(pkey),
vcp->vc_pubkeytype, addr_buf);
if (vcp->vc_compressed)
vg_encode_address_compressed(ppnt,
EC_KEY_get0_group(pkey),
vcp->vc_pubkeytype, addr_buf);
else
vg_encode_address(ppnt,
EC_KEY_get0_group(pkey),
vcp->vc_pubkeytype, addr_buf);
if (isscript)
vg_encode_script_address(ppnt,
EC_KEY_get0_group(pkey),
@@ -550,7 +555,10 @@ vg_output_match_console(vg_context_t *vcp, EC_KEY *pkey, const char *pattern)
}
}
if (!vcp->vc_key_protect_pass) {
vg_encode_privkey(pkey, vcp->vc_privtype, privkey_buf);
if (vcp->vc_compressed)
vg_encode_privkey_compressed(pkey, vcp->vc_privtype, privkey_buf);
else
vg_encode_privkey(pkey, vcp->vc_privtype, privkey_buf);
}
if (!vcp->vc_result_file || (vcp->vc_verbose > 0)) {

1
pattern.h
View File

@@ -88,6 +88,7 @@ enum vg_format {
/* Application-level context, incl. parameters and global pattern store */
struct _vg_context_s {
int vc_compressed;
int vc_addrtype;
int vc_privtype;
unsigned long vc_npatterns;

44
util.c
View File

@@ -259,6 +259,30 @@ vg_encode_address(const EC_POINT *ppoint, const EC_GROUP *pgroup,
vg_b58_encode_check(binres, sizeof(binres), result);
}
void
vg_encode_address_compressed(const EC_POINT *ppoint, const EC_GROUP *pgroup,
int addrtype, char *result)
{
unsigned char eckey_buf[128], *pend;
unsigned char binres[21] = {0,};
unsigned char hash1[32];
pend = eckey_buf;
EC_POINT_point2oct(pgroup,
ppoint,
POINT_CONVERSION_COMPRESSED,
eckey_buf,
sizeof(eckey_buf),
NULL);
pend = eckey_buf + 0x21;
binres[0] = addrtype;
SHA256(eckey_buf, pend - eckey_buf, hash1);
RIPEMD160(hash1, sizeof(hash1), &binres[1]);
vg_b58_encode_check(binres, sizeof(binres), result);
}
void
vg_encode_script_address(const EC_POINT *ppoint, const EC_GROUP *pgroup,
int addrtype, char *result)
@@ -306,6 +330,26 @@ vg_encode_privkey(const EC_KEY *pkey, int addrtype, char *result)
vg_b58_encode_check(eckey_buf, 33, result);
}
void
vg_encode_privkey_compressed(const EC_KEY *pkey, int addrtype, char *result)
{
unsigned char eckey_buf[128];
const BIGNUM *bn;
int nbytes;
bn = EC_KEY_get0_private_key(pkey);
eckey_buf[0] = addrtype;
nbytes = BN_num_bytes(bn);
assert(nbytes <= 32);
if (nbytes < 32)
memset(eckey_buf + 1, 0, 32 - nbytes);
BN_bn2bin(bn, &eckey_buf[33 - nbytes]);
eckey_buf[nbytes+1] = 1;
vg_b58_encode_check(eckey_buf, 34, result);
}
int
vg_set_privkey(const BIGNUM *bnpriv, EC_KEY *pkey)
{

3
util.h
View File

@@ -38,10 +38,13 @@ extern int vg_b58_decode_check(const char *input, void *buf, size_t len);
extern void vg_encode_address(const EC_POINT *ppoint, const EC_GROUP *pgroup,
int addrtype, char *result);
extern void vg_encode_address_compressed(const EC_POINT *ppoint, const EC_GROUP *pgroup,
int addrtype, char *result);
extern void vg_encode_script_address(const EC_POINT *ppoint,
const EC_GROUP *pgroup,
int addrtype, char *result);
extern void vg_encode_privkey(const EC_KEY *pkey, int addrtype, char *result);
extern void vg_encode_privkey_compressed(const EC_KEY *pkey, int addrtype, char *result);
extern int vg_set_privkey(const BIGNUM *bnpriv, EC_KEY *pkey);
extern int vg_decode_privkey(const char *b58encoded,
EC_KEY *pkey, int *addrtype);

28
vanitygen.c
View File

@@ -114,7 +114,7 @@ vg_thread_loop(void *arg)
} else {
eckey_buf = hash_buf;
hash_len = 65;
hash_len = (vcp->vc_compressed)?33:65;
}
while (!vcp->vc_halt) {
@@ -194,11 +194,11 @@ vg_thread_loop(void *arg)
for (i = 0; i < nbatch; i++, vxcp->vxc_delta++) {
/* Hash the public key */
len = EC_POINT_point2oct(pgroup, ppnt[i],
POINT_CONVERSION_UNCOMPRESSED,
(vcp->vc_compressed)?POINT_CONVERSION_COMPRESSED:POINT_CONVERSION_UNCOMPRESSED,
eckey_buf,
65,
(vcp->vc_compressed)?33:65,
vxcp->vxc_bnctx);
assert(len == 65);
assert(len == 65 || len == 33);
SHA256(hash_buf, hash_len, hash1);
RIPEMD160(hash1, sizeof(hash1), &vxcp->vxc_binres[1]);
@@ -311,10 +311,11 @@ usage(const char *name)
"-i Case-insensitive prefix search\n"
"-k Keep pattern and continue search after finding a match\n"
"-1 Stop after first match\n"
"-L Generate litecoin address\n"
"-N Generate namecoin address\n"
"-T Generate bitcoin testnet address\n"
"-X <version> Generate address with the given version\n"
"-F <format> Generate address with the given format (pubkey or script)\n"
"-F <format> Generate address with the given format (pubkey, compressed, script)\n"
"-P <pubkey> Specify base public key for piecewise key generation\n"
"-e Encrypt private keys, prompt for password\n"
"-E <password> Encrypt private keys with <password> (UNSAFE)\n"
@@ -358,11 +359,15 @@ main(int argc, char **argv)
int pattfpi[MAX_FILE];
int npattfp = 0;
int pattstdin = 0;
int compressed = 0;
int i;
while ((opt = getopt(argc, argv, "vqnrik1eE:P:NTX:F:t:h?f:o:s:")) != -1) {
while ((opt = getopt(argc, argv, "Lvqnrik1eE:P:NTX:F:t:h?f:o:s:")) != -1) {
switch (opt) {
case 'c':
compressed = 1;
break;
case 'v':
verbose = 2;
break;
@@ -389,6 +394,11 @@ main(int argc, char **argv)
privtype = 180;
scriptaddrtype = -1;
break;
case 'L':
addrtype = 48;
privtype = 176;
scriptaddrtype = -1;
break;
case 'T':
addrtype = 111;
privtype = 239;
@@ -402,7 +412,10 @@ main(int argc, char **argv)
case 'F':
if (!strcmp(optarg, "script"))
format = VCF_SCRIPT;
else
else
if (!strcmp(optarg, "compressed"))
compressed = 1;
else
if (strcmp(optarg, "pubkey")) {
fprintf(stderr,
"Invalid format '%s'\n", optarg);
@@ -544,6 +557,7 @@ main(int argc, char **argv)
caseinsensitive);
}
vcp->vc_compressed = compressed;
vcp->vc_verbose = verbose;
vcp->vc_result_file = result_file;
vcp->vc_remove_on_match = remove_on_match;