EP 1 499 940 B1 We would like to know something about you. How can we find out? o No, | don't. want to tell anything o | have a user name/password with you o | have a federated identity and o... my Own wallet o... my wallet holder is | ©... look me up, my name is | | Submit | You can see who we are and our privacy policy. 20 30 f . f Person Client application, Location Entity Requesting Entity here browser . |  " | Ill Connect to location entity Connect to contact Wd. . ; IVa , . address VI ve Request | CD) Half-finished ' Civa.ii> Vd iii response as form — WwW Finished response as form . IVd.v  " Ve Response Fig. 5 Fig. 6 17