C/C++ interface for Google Cloud KMS API

Question

I find it extraordinary that there isn't a PKCS#11 interface let alone the fact there is support for C#, Go, Java, Node.JS, PHP, Python and Ruby but no direct API support for C/C++. Did I miss something? Is it just a REST interface where you have to use one of Microsoft REST API library, Pistache or one of the other libraries out there?

Answer 1

In general, Google Cloud publishes languages and client libraries in 7 languages:

• C# (.NET)
• Go
• Java
• Node.js
• PHP
• Python
• Ruby

And then you can always access the API directly via REST or gRPC.

If you'd like to learn more about PKCS#11 in Cloud KMS, please reach out to the team using any of the methods on this page.

Answer 2

There is now a C++ KMS library.

The code is here: https://github.com/googleapis/google-cloud-cpp/tree/main/google/cloud/kms

The reference docs are here: https://cloud.google.com/cpp/docs/reference/kms/latest

(No, this did not exist at the time you asked for it).