Method decrypt_data

src/Core/WalletHDsqlite.cpp:250–261

}

BinaryArray WalletHDsqlite::decrypt_data(const chacha_key &wallet_key, const uint8_t *value_data, size_t value_size) {
	Hash iv;
	invariant(value_size >= 4 + sizeof(Hash), "");
	memcpy(iv.data, value_data, sizeof(Hash));
	BinaryArray result(value_size - sizeof(Hash));
	BinaryArray key_data = wallet_key.as_binary_array() | iv.as_binary_array();
	chacha_key key{cn_fast_hash(key_data)};
	chacha(20, value_data + sizeof(Hash), result.size(), key, chacha_iv{}, result.data());
	auto real_size = uint_le_from_bytes<size_t>(result.data(), 4);
	invariant(real_size <= result.size() - 4, "");
	return BinaryArray{result.data() + 4, result.data() + 4 + real_size};
}

void WalletHDsqlite::put_salt(const BinaryArray &salt) {
	sqlite::Stmt stmt_update;