Whether the work is "principally cryptographic" or not means fantastically little for it's business value, what matters is that the fraction of the value Werner is capturing is almost unmeasurably small. What Werner needs isn't donations, it's a vehicle for capturing some of the value he's creating.
The idea I suggested (a consultancy retainer) is a way of converting his name into cash. At 10 hours a month, his function would mostly be limited to the company being able to say that he works for them, maybe have him join some high-level meetings, more than actually doing programming for clients.
You're in the general security business, you seem to be pretty good at business in general: don't you know someone who could turn hiring Werner and two devs to work on GPG into cash?
The idea I suggested (a consultancy retainer) is a way of converting his name into cash. At 10 hours a month, his function would mostly be limited to the company being able to say that he works for them, maybe have him join some high-level meetings, more than actually doing programming for clients.
You're in the general security business, you seem to be pretty good at business in general: don't you know someone who could turn hiring Werner and two devs to work on GPG into cash?