bool b58check_enc(char *b58c, size_t *b58c_sz, uint8_t ver, const void *data, size_t datasz)
{
uint8_t buf[1 + datasz + 0x20];
uint8_t *hash = &buf[1 + datasz];
buf[0] = ver;
memcpy(&buf[1], data, datasz);
if (!my_dblsha256(hash, buf, datasz + 1))
{
*b58c_sz = 0;
return false;
}
return b58enc(b58c, b58c_sz, buf, 1 + datasz + 4);
}
int base58_encode_check(const uint8_t *data, int datalen, char *str, int strsize)
{
if (datalen > 128) {
return 0;
}
uint8_t buf[datalen + 32];
uint8_t *hash = buf + datalen;
memcpy(buf, data, datalen);
sha256_Raw(data, datalen, hash);
sha256_Raw(hash, 32, hash);
size_t res = strsize;
bool success = b58enc(str, &res, buf, datalen + 4);
MEMSET_BZERO(buf, sizeof(buf));
return success ? res : 0;
}
int base58_encode_check(const uint8_t *data, int datalen, char *str, int strsize)
{
int ret;
if (datalen > 128) {
return 0;
}
uint8_t buf[datalen + 32];
uint8_t *hash = buf + datalen;
memcpy(buf, data, datalen);
sha256_Raw(data, datalen, hash);
sha256_Raw(hash, 32, hash);
size_t res = strsize;
if (b58enc(str, &res, buf, datalen + 4) != true) {
ret = 0;
} else {
ret = res;
}
utils_zero(buf, sizeof(buf));
return ret;
}
ustring PubAddr::buildAddressFromKeys(ustring Skey, ustring Ekey, int stream, int version)
{
CryptoPP::SHA512 hash;
byte digest[CryptoPP::SHA512::DIGESTSIZE];
byte digest1[CryptoPP::SHA512::DIGESTSIZE];
ustring buffer;
if (Skey.size() == 64)
{
ustring tmp = Skey;
Skey.clear();
Skey += 0x04;
Skey += tmp;
}
if (Ekey.size() == 64)
{
ustring tmp = Ekey;
Ekey.clear();
Ekey += 0x04;
Ekey += tmp;
}
buffer += Skey;
buffer += Ekey;
hash.CalculateDigest(digest, (byte*)buffer.c_str(), buffer.length());
CryptoPP::RIPEMD160 hash2;
byte digest2[CryptoPP::RIPEMD160::DIGESTSIZE];
hash2.CalculateDigest(digest2, digest, sizeof digest);
ustring ripe;
int i = 0;
while (digest2[i] == 0x00)
i++;
while (i < sizeof digest2)
{
ripe += digest2[i];
i++;
}
ustring tmp;
tmp.appendVarInt_B(version);
tmp.appendVarInt_B(stream);
tmp += ripe;
//generate checksum
hash.CalculateDigest(digest, (byte*)tmp.c_str(), tmp.length());
hash.CalculateDigest(digest1, digest, sizeof digest);
tmp += digest1[0];
tmp += digest1[1];
tmp += digest1[2];
tmp += digest1[3];
//convert to base58
char * ret = new char[256];
size_t size = 256;
if (!b58enc(ret, &size, tmp.c_str(), tmp.size()))
{
delete[] ret;
throw runtime_error("cannot encode base58");
}
ustring addr;
addr.fromString(string("BM-"));
addr.append((unsigned char*)ret, size-1);
delete[] ret;
return addr;
}
