Global Patent Index - EP 1320803 A2

EP 1320803 A2 2003-06-25 - EMBEDDED SECURITY DEVICE WITHIN A NONVOLATILE MEMORY DEVICE

Title (en)

EMBEDDED SECURITY DEVICE WITHIN A NONVOLATILE MEMORY DEVICE

Title (de)

NICHTFLÜCHTIGE SPEICHERANORDNUNG MIT DARIN EINGEBETTETER SICHERHEITSVORRICHTUNG

Title (fr)

DISPOSITIF DE SECURITE INTEGRE DANS UN DISPOSITIF DE MEMOIRE NON VOLATILE

Publication

EP 1320803 A2 (EN)

Application

EP 01948313 A

Priority

  • US 0118756 W
  • US 60437700 A

Abstract (en)

[origin: WO0201368A2] An improved security device to control access to restricted resources on an authorized basis. A security engine, such as a processor with associated security functions, is coupled between a first modifiable non-volatile memory, such as flash memory, and a first external interface, all on the same integrated circuit. The first memory contains secure data, and is controlled solely by the security engine, which also controls the first external interface and thereby prevents read or write access to the first memory by any external device. The integrated circuit also contains a second modifiable non-volatile memory, such as flash memory, that is coupled to a second external interface for read and write access by an external device. The second memory contains non-secure data, and is controlled through the second external interface by an external device. By isolating secure processing and storage from unsecure storage on the same integrated circuit, the security functions/data are protected from dedicated attack that could intercept or control transmissions between the two, while the benefits of placing all the functions on a single integrated circuit are achieved.

IPC 1-7 (main, further and additional classification)

G06F 12/14

IPC 8 full level (invention and additional information)

G06F 21/62 (2013.01); G06F 21/71 (2013.01); G06F 21/79 (2013.01); H04L 29/06 (2006.01)

CPC (invention and additional information)

H04L 63/0853 (2013.01); G06F 21/6209 (2013.01); G06F 21/71 (2013.01); G06F 21/79 (2013.01)

Citation (search report)

See references of WO 0201368A3

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0201368 A2 20020103; WO 0201368 A3 20030327; AU 6978001 A 20020108; CN 1439129 A 20030827; EP 1320803 A2 20030625; TW 519651 B 20030201

INPADOC legal status


2007-02-21 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20060905

2003-06-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030124

2003-06-25 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2003-06-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Countries: AL LT LV MK RO SI