Authorization header for SMS API

Hello,

does anyone know if an authorization header in the below form can be created for SMS API requests?

Authorization: MAC id="your API key", ts="1325376000", nonce="random-string", mac="base64-encoded-hash" 

That scheme is based on this OAuth 2 specification http://tools.ietf.org/html/draft-ietf-oauth-v2-http-mac-01

I think you can pass any value.

But how would I get them within the traccar config?

I went through https://www.traccar.org/http-sms-api/ but unfortunately I can not find any config options that would provide variables like timestamp, nonce (random string).
Does anyone have an idea?

What if you hardcode those values? It doesn't work?

How can timestamp be hardcoded that needs to be the execution time and changes every time? also it expects a changing random number. Otherwise you are right and I would have tested that.