What would you like to be added

Add support for a DynamoDB storage backend. Although MySQL is available, it would require to run a RDS Instance for it. Extra costs, backup considerations, etc. Even with Aurora Serverless.

DynamoDB is just there, scales as needed with OnDemand pricing and has fine backup capabilities.

Why this is needed

We plan to run step-ca in AWS ECS on Farga

Please add provider support for the "botan encryption" command and implement the needed AES operations with PKCS#11.
I could not find any command line tool that I can use for that. OpenSSL's PKCS#11 engine does not support AES either.

To simplify the distribution of the step-cli on Windows, it would be great to publish a simple chocolatey package. In the end, one would be able to use "choco install step" to grab step.exe and have it automatically available in the system path. Right now I download the Windows prebuilt executable zip file and manually "install" it. By the way, the current .zip file has a very deep directory struc

Tasks:

• add docs to token strategy (godoc)
• add links to the readme (api-key, bearer, x-header)