Summary
In this chapter, you looked at using and storing public and private trust certificates via the ACM service. You examined the difference between public and private certificates and how both can be used with the ACM service. You looked at how public certificates can help secure transmissions for public-facing websites and web apps being served from other AWS services, such as S3 buckets and ELBs.
You also looked at how a private CA could be managed from the ACM service, as well as use cases where using private certificates both does and does not make sense for you and your organization.
In the next chapter, we will discuss how to make your operating environment more secure by storing confidential information such as passwords and API tokens. This can be accomplished in several ways using AWS native services that will be discussed; you will also review some walk-through examples of how to use the services.
