251        if (data.size() == BIP32_EXTKEY_SIZE + prefix.size() && std::equal(prefix.begin(), prefix.end(), data.begin())) {
252            key.Decode(data.data() + prefix.size());
253        }
254    }
255    return key;
256}
257
258std::string EncodeExtPubKey(const CExtPubKey& key)
259{
260    std::vector<unsigned char> data = Params().Base58Prefix(CChainParams::EXT_PUBLIC_KEY);
261    size_t size = data.size();
262    data.resize(size + BIP32_EXTKEY_SIZE);
263    key.Encode(data.data() + size);
264    std::string ret = EncodeBase58Check(data);
265    return ret;
266}
267
268CExtKey DecodeExtKey(const std::string& str)
269{
270    CExtKey key;
271    std::vector<unsigned char> data;
272    if (DecodeBase58Check(str, data, 78)) {
273        const std::vector<unsigned char>& prefix = Params().Base58Prefix(CChainParams::EXT_SECRET_KEY);
274        if (data.size() == BIP32_EXTKEY_SIZE + prefix.size() && std::equal(prefix.begin(), prefix.end(), data.begin())) {
275            key.Decode(data.data() + prefix.size());
276        }
277    }
278    if (!data.empty()) {
279        memory_cleanse(data.data(), data.size());
280    }
281    return key;
282}
283
284std::string EncodeExtKey(const CExtKey& key)
285{
286    std::vector<unsigned char> data = Params().Base58Prefix(CChainParams::EXT_SECRET_KEY);
287    size_t size = data.size();
288    data.resize(size + BIP32_EXTKEY_SIZE);
289    key.Encode(data.data() + size);
290    std::string ret = EncodeBase58Check(data);
291    memory_cleanse(data.data(), data.size());
292    return ret;
293}
294
295std::string EncodeDestination(const CTxDestination& dest)
296{
297    return std::visit(DestinationEncoder(Params()), dest);
298}
299
300CTxDestination DecodeDestination(const std::string& str, std::string& error_msg, std::vector<int>* error_locations)
301{
302    return DecodeDestination(str, Params(), error_msg, error_locations);
303}
304
305CTxDestination DecodeDestination(const std::string& str)
306{
307    std::string error_msg;
308    return DecodeDestination(str, error_msg);
309}
310
311bool IsValidDestinationString(const std::string& str, const CChainParams& params)
312{
313    std::string error_msg;
314    return IsValidDestination(DecodeDestination(str, params, error_msg, nullptr));
315}
316
317bool IsValidDestinationString(const std::string& str)
318{
319    return IsValidDestinationString(str, Params());
320}
321