VERIFYING DIGITAL SIGNATURES USING A POSTAL SECURITY DEVICE
摘要
A system for verifying printed indicia. The system comprises an indicia generating apparatus adapted to create digitally signed indicia on an item having an associated value and an indicia verifying apparatus adapted to read the indicia on the item and verify that the item is valid. The item can be used as payment for a good or service.
申请公布号
WO03039051(A2)
申请公布日期
2003.05.08
申请号
WO2001US28483
申请日期
2001.09.11
申请人
ASCOM HASLER MAILING SYSTEMS, INC.
发明人
BYSTRAK, EUGENE, ROBERT;DUTTA, RANA;MATTERN, JAMES, MICHAEL