...based on entered data. And of course such calculator is protected by PIN. Some banks are offering smart card authorizationtokens. But There is hidden risk too. I never heard about this attack. But consider MITM between keyboard and crypto...
http://www.schneier.com/blog/archives/2009/09/hacking_two-fac.html
...administrative domain. OSP grants such access by returning authorizationtokens, which must then be passed to the destination...signaling protocols must be capable of carrying these authorizationtokens in an interoperable way. This memo defines just...
http://xml.coverpages.org/openSetProt.html