BuildToken creates a signed jwt using provided private key Ensure the key contains kid else the operation fails.

GetPublicKeySet convert private to public.

IsNullUUID returns true if passed string is a null uuid or is not a valid uuid defined by `github.com/google/uuid`.Parse and `github.com/google/uuid`.Nil respectively else return false.

IsValidUUID returns true if passed string in uuid format defined by `github.com/google/uuid`.Parse else return false.

NewString is type alias to `github.com/google/uuid`.NewString.