Making a unique extension id and key for Chrome extension?

Question

I have a Chrome extension I made, but based it on some example found online. Its not in a crx file. The extension ID is the one used in the example. I would like to change it

Answer 1

You can create you own key and extension ID for the manifest:

openssl genrsa 2048 | openssl pkcs8 -topk8 -nocrypt -out key.pem

Key:

openssl rsa -in key.pem -pubout -outform DER | openssl base64 -A

Extension ID:

openssl rsa -in key.pem -pubout -outform DER | shasum -a 256 | head -c32 | tr 0-9a-f a-p