Symmetric encryption might be sufficient. However, follow good advice from [here](https://paragonie.com/blog/2015/05/using-encryption-and-authentication-correctly). In summary, use authenticated encryption, and use something like HMAC for auth (rather than just hash). Found that link from [here](https://gist.github.com/paragonie-scott/e9319254c8ecbad4f227).
Symmetric encryption might be sufficient.
However, follow good advice from here. In summary, use authenticated encryption, and use something like HMAC for auth (rather than just hash).
Found that link from here.