EU DIRECTIVE ON SIGNATURES

[Ian Brown]

> Yes, but amazon.com would be most concerned that the entity that
> purported to state that the number you quoted was good for the amount in
> question was indeed that well known organisation VISA, and a certificate
> to that effect (perhaps from a CA) should resolve that.

Sorry, I misread this bit.

A company would know that public key x belonged to Visa because Visa's
certs will be built into every piece of e-commerce software in the world ;)

In general though, if a company takes payment through an electronic system,
the operator of the system will provide the necessary certificates when the
company opens their merchant account with the system.

Ian.