# Haichao

## Haichao Zhu

### Best way to store mnemonic on user browser localstorage

*Apr 21, 2020*

There will soon be a “MetaMask”-like browser extension (AlgoSigner) that allows to securely store keys and sign transactions. If you need to store keys / mnemonic securely before the availability of AlgoSigner, in a production environment, one solution is to have them encrypted under a password tha…

---

### Covid-19 Data Project and py script for survey transaction download!

*Apr 7, 2020*

Hey all,  
Just made a [public repo](https://github.com/zalkikar/AlgoRand_Covid) dedicated to understanding IReport-Covid survey data from the Algorand Blockchain in Python, along with a [py script](https://github.com/zalkikar/AlgoRand_Covid/blob/master/py_algorand.py) to bulk download survey transactions and demo notebooks to decode the embedded notes. If anyone wants to help make a frontend website to display surve…