namespace bts
{
pts_address::pts_address()
{
memset( addr.data, 0, sizeof(addr.data) );
}
pts_address::pts_address( const std::string& base58str )
{
std::vector<char> v = fc::from_base58( fc::string(base58str) );
if( v.size() )
memcpy( addr.data, v.data(), std::min<size_t>( v.size(), sizeof(addr) ) );
if( !is_valid() )
{
FC_THROW_EXCEPTION( exception, "invalid pts_address ${a}", ("a", base58str) );
}
}
pts_address::pts_address( const fc::ecc::public_key& pub )
{
auto dat = pub.serialize_ecc_point();
auto sha2 = fc::sha256::hash(dat.data, sizeof(dat) );
auto rep = fc::ripemd160::hash((char*)&sha2,sizeof(sha2));
addr.data[0] = 56;
memcpy( addr.data+1, (char*)&rep, sizeof(rep) );
auto check = fc::sha256::hash( addr.data, sizeof(rep)+1 );
check = fc::sha256::hash(check); // double
memcpy( addr.data+1+sizeof(rep), (char*)&check, 4 );
}
/**
* Checks the address to verify it has a
* valid checksum and prefix.
*/
bool pts_address::is_valid()const
{
if( addr.data[0] != 56 ) return false;
auto check = fc::sha256::hash( addr.data, sizeof(fc::ripemd160)+1 );
check = fc::sha256::hash(check); // double
return memcmp( addr.data+1+sizeof(fc::ripemd160), (char*)&check, 4 ) == 0;
}
pts_address::operator std::string()const
{
return fc::to_base58( addr.data, sizeof(addr) );
}
}
bitshares/src/pts_address.cpp