Also, a small side note if you’re interested.
You can sign a binary file with your key so that anyone can verify that it was you who signed it. Assuming you have gpg installed, and the file might be a-file-to-sign.zip:
$ gpg --armor --detach-sig a-file-to-sign.zip
This will output a file called a-file-to-sign.zip.asc that can be distributed alongside your binary file.
Then we can verify the signature by:
$ gpg --verify a-file-to-sign.zip.asc