AWS Certificate Manager is a service that lets users provision, manage, and deploy public and private Secure Sockets Layer/Transport Layer Security (SSL/TLS) certificates for use with AWS services and internal connected resources.
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OpenSSL
Score 9.2 out of 10
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OpenSSL is a toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols. It is also a general-purpose cryptography library.
Ability to upload our clients' private ssl certificates to then be used across other AWS services. Great to integrate with Route53 and be able to generate internal SSL certificates to be used across other services.
I would recommend OpenSSL for just about any kind of cryptographic operations that you may need. I can't think of a particular situation where it would not be appropriate to use OpenSSL for a cryptographic function of some sort or another. If you are going to provide some sort of encryption service in a product, OpenSSL is probably the best way to get it off the ground and going. With other competitors, you may get it working, but I fear long term support and interoperability will be an issue.
AWS historically has had very confusing interfaces. But in recent times they have improved them. AWS Certificate Manager is a clear sample of this. The interface is clear and straightforward, with no useless or cryptic options. Really I can't think of a way the interface could be better with the actual options available.
Easy to implement within a few clicks, or even from command line, the alternatives doesn't integrate that easy with AWS Application Load Balancers or AWS CloudFront
LibreSSL is another option to OpenSSL, however, the sheer volume of other applications using OpenSSL and the wide support for it makes OpenSSL a compelling product.
roi is hard to measure for openssl. It's not that it doesn't provide a significant roi, but it is in the background of an application, not the foreground.
