Re: Questions when interviewing new people

On Thu, Apr 15, 2004 at 09:08:47AM -0300, Mads Rasmussen wrote:
> 
> In their book, "writing secure code, 2nd ed", Michael Howard & David 
> LeBlanc talks about an exercise when interviewing new people.
> The purpose is not to test the persons security skills but to ascertain 
> how the person thinks about security issues.
> 
> They give an example:
> 

[deleted]

> 
> Do anyone use similar skills to interview new staff?

I've been using a similar question for the last 5 or 6 years.

I treat it as two parts-- a general security design part where the
candidate tells me about the threats to the system, and a specific design
part where they tell me specifically how they'd solve it (alice sends
bob xyz encrypted in algorithm pdq, etc).

> I find this idea 
> really nice. You force the person to think as a hacker in order to 
> answer the questions, will his/hers answers satisfy your expectations?

I'm not asking them to think like a hacker, I'm asking them to think like
the designer of a secure system that uses cryptography.

The good thing about my question is that there is more than one
reasonable solution.  The different solutions have their advantages
and disadvantages, so I can get candidates to talk about that too.


> Another interesting idea would be to draw up some code on a white board 
> and ask the candidate to identify the buffer overflow.

_that's_ asking them to think like a hacker.  Also very useful of course.
 

Eric