How does Satellite ensure integrity with yum repositories from CDN?

Issue

What process does Satellite use to verify the integrity of downloaded packages yum/rpm to the Satellite server?

Satellite 6

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Here are the common uses of Markdown.

Code blocks

~~~
Code surrounded in tildes is easier to read
~~~

Links/URLs

[Red Hat Customer Portal](https://access.redhat.com)