METHOD FOR SECURING RFID CHARGE VALUE MEDIA VIA CRYPTOGRAPHIC SIGNING AND BLOCK LOCKING
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Sep 7, 2006
app pub date -
Jan 26, 2006
filing date -
Jan 26, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A process for securely tracking debit transactions on an RFID charge media by encoding RFID charge media with an initial charge value, securing the RFID charge media with a cryptographic signature using a private key and a unique ID, verifying the cryptographic signature using a public key paired to the private key, and writing and locking a debit transaction record block on the RFID charge media. The RFID charge media is encoded and secured by reading the RFID charge media with a unique ID, encoding and writing an initial data set containing the initial charge value and a unique ID copy, and securing the RFID charge media using the cryptographic signature. The cryptographic signature is verified using a public key on the unique ID copy. The initial charge value and all locked debit transaction record blocks are used to calculate a current charge value.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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