Function DeserializeHDKeypaths

src/psbt.h:183–203

// Deserialize HD keypaths into a map
template<typename Stream>
void DeserializeHDKeypaths(Stream& s, const std::vector<unsigned char>& key, std::map<CPubKey, KeyOriginInfo>& hd_keypaths)
{
    // Make sure that the key is the size of pubkey + 1
    if (key.size() != CPubKey::SIZE + 1 && key.size() != CPubKey::COMPRESSED_SIZE + 1) {
        throw std::ios_base::failure("Size of key was not the expected size for the type BIP32 keypath");
    }
    // Read in the pubkey from key
    CPubKey pubkey(key.begin() + 1, key.end());
    if (!pubkey.IsFullyValid()) {
       throw std::ios_base::failure("Invalid pubkey");
    }
    if (hd_keypaths.count(pubkey) > 0) {
        throw std::ios_base::failure("Duplicate Key, pubkey derivation path already provided");
    }

    KeyOriginInfo keypath;
    DeserializeHDKeypath(s, keypath);

    // Add to map
    hd_keypaths.emplace(pubkey, std::move(keypath));
}

// Serialize an individual HD keypath to a stream
template<typename Stream>