Sample Request: for encrypting an entry using an environment variable and writing to DB

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**Securely Encrypting a value and writing it to the database ideally using a Env- Variable?**

**Steps to set up and reproduce**
1. Take a plain text entry
2. Encrypt it using best practice ideally using a Environment variable key
3. Write it to the DB

4. Perform the decryption and console.log the output.

This is useful for storing Api Tokens/ personally identifiable data assuming there isn't a more "firebasey" way of doing this already.