Global Patent Index - EP 2542995 A2

EP 2542995 A2 20130109 - METHOD FOR VERIFYING A MEMORY BLOCK OF A NONVOLATILE MEMORY

Title (en)

METHOD FOR VERIFYING A MEMORY BLOCK OF A NONVOLATILE MEMORY

Title (de)

VERFAHREN ZUM VERIFIZIEREN EINES SPEICHERBLOCKS EINES NICHT-FLÜCHTIGEN SPEICHERS

Title (fr)

PROCÉDÉ DE VÉRIFICATION D'UN BLOC MÉMOIRE D'UNE MÉMOIRE NON VOLATILE

Publication

EP 2542995 A2 20130109 (DE)

Application

EP 11702454 A 20110207

Priority

  • DE 102010002472 A 20100301
  • EP 2011051714 W 20110207

Abstract (en)

[origin: WO2011107319A2] The invention relates to a method for verifying a memory block of a nonvolatile memory, wherein, at a first point in time, a first authentication code for the memory block (131, 132, 33) is determined (209) by using a secret keyword and is stored (211) in an authentication code memory table (120), at a second point in time, for the purpose of verification, a second authentication code for the memory block (131, 132, 133) is determined (307) by using the secret keyword and is compared (307) to the first authentication code, and the memory block (131, 132, 133) is verified (309) if the first authentication code and the second authentication code agree.

IPC 8 full level

G06F 21/00 (2013.01); G06F 21/64 (2013.01); G06F 21/79 (2013.01)

CPC (source: EP KR US)

G06F 12/02 (2013.01 - KR); G06F 12/14 (2013.01 - KR); G06F 12/1425 (2013.01 - EP US); G06F 21/00 (2013.01 - KR); G06F 21/64 (2013.01 - EP US); G06F 21/79 (2013.01 - EP US); H04L 9/32 (2013.01 - EP US); G06F 2212/2022 (2013.01 - EP US)

Citation (search report)

See references of WO 2011107319A2

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

DE 102010002472 A1 20110901; CN 103109280 A 20130515; EP 2542995 A2 20130109; JP 2013533521 A 20130822; JP 5718373 B2 20150513; KR 20130015007 A 20130212; US 2013117578 A1 20130509; WO 2011107319 A2 20110909; WO 2011107319 A3 20150709

DOCDB simple family (application)

DE 102010002472 A 20100301; CN 201180011794 A 20110207; EP 11702454 A 20110207; EP 2011051714 W 20110207; JP 2012555346 A 20110207; KR 20127022800 A 20110207; US 201113581794 A 20110207