By using the credential interface, applications can manage credentials by receiving credential descriptions and then collecting credentials from a user, from {HEAD ~ memory}, from {TAIL ~ a device}, or any other suitable location 
By using the credential interface , applications can manage credentials by receiving credential descriptions and then collecting credentials from a user , from { HEAD ~ memory } , from { TAIL ~ a device } , or any other suitable location
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH