I'm exploring using HMAC style secret-key authentication with timestamp expiry, but am struggling to get my head around how you validate the timestamp portion. On the client side you would do: ...
I mean, say you were writing professional grade software that would involve sensitive client information. (Take this in the context of me being an amateur programmer.) Would you use hlib and hmac? ...
I am designing a simple webservice and want to use HMAC for authentication to the service. For the purpose of this question we have: a web service at example.com a secret key shared between a user ...