| US 7,617,528 B2 | ||
| Smartcard with protected memory access | ||
| Barry Sim Hochfield, Glasgow (United Kingdom); and Anthony Breslin, East Kilbride (United Kingdom) | ||
| Assigned to ECEBS Limited, South Yorkshire (United Kingdom) | ||
| Appl. No. 10/543,124 PCT Filed Jan. 26, 2004, PCT No. PCT/GB2004/000303 § 371(c)(1), (2), (4) Date Mar. 13, 2006, PCT Pub. No. WO2004/066196, PCT Pub. Date Aug. 05, 2004. |
||
| Claims priority of application No. 0301726.6 (GB), filed on Jan. 24, 2003. | ||
| Prior Publication US 2006/0156396 A1, Jul. 13, 2006 | ||
| Int. Cl. G06F 21/00 (2006.01); H04L 9/00 (2006.01) | ||
| U.S. Cl. 726—20 [713/185] | 19 Claims |
| 1. A smartcard comprising:
a substrate having a smartcard chip thereon; and
a secondary memory device on said substrate and operatively connected to the smartcard chip,
wherein said secondary memory device is configured to store a plurality of pages of data, each page having associated with
it a unique sequence number, the sequence number being stored separately from the page so that when the page is to be read,
the sequence number retrieved with the page can be compared with the stored sequence number to authenticate the page.
|