EP 1320803 A2 20030625 - 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
Application
Priority
- US 0118756 W 20010607
- US 60437700 A 20000627
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
IPC 8 full level
G06F 21/00 (2006.01); G06F 21/62 (2013.01); G06F 21/71 (2013.01); G06F 21/79 (2013.01); H04L 29/06 (2006.01)
CPC (source: EP)
G06F 21/6209 (2013.01); G06F 21/71 (2013.01); G06F 21/79 (2013.01); H04L 63/0853 (2013.01)
Citation (search report)
See references of WO 0201368A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0201368 A2 20020103; WO 0201368 A3 20030327; AU 6978001 A 20020108; CN 1439129 A 20030827; EP 1320803 A2 20030625; TW 519651 B 20030201
DOCDB simple family (application)
US 0118756 W 20010607; AU 6978001 A 20010607; CN 01811832 A 20010607; EP 01948313 A 20010607; TW 90112104 A 20010521