Method for verifying digital franking notes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 25, 2009
Grant Date -
Aug 24, 2006
app pub date -
Jan 21, 2004
filing date -
Feb 12, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Digital franking notes generated in customer systems and comprise cryptographic information that is used for verifying the postage indicia in local payment assurance systems. A data key used for generating the postage indicia is generated in a value transfer center and transmitted via a central payment assurance system to the local payment assurance systems, which import the key in order to verify franking notes generated using the key. The local payment assurance systems notify the value transfer center of successful key imports. After a successful import, the value transfer center issues a data key to the customer systems and postage indicia are verified by decrypting the contained cryptographic information in the local payment assurance systems.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully