Global Patent Index - EP 1240569 A2

EP 1240569 A2 2002-09-18 - METHOD AND DEVICE FOR VERIFYING A FILE

Title (en)

METHOD AND DEVICE FOR VERIFYING A FILE

Title (de)

VERFAHREN UND VORRICHTUNG ZUR ÜBERPRÜFUNG EINER DATEI

Title (fr)

PROCEDE ET DISPOSITIF PERMETTANT DE VERIFIER UN FICHIER

Publication

EP 1240569 A2 (DE)

Application

EP 00987435 A

Priority

  • DE 19961838 A
  • EP 0013122 W

Abstract (en)

[origin: WO0146785A2] The invention relates to a method and a device for verifying the authenticity and integrity of a file which has been received, or is to be transmitted from a computer (14) and which is furnished with a digital signature. For the verification process, said method accesses signals which are available at an interface (18) of the computer that is linked to an output device (16) for outputting the file furnished with the digital signature. A device (20) for carrying out the method comprises a circuit and a programme which are used to perform the verification in the device (20), in a manner which is logically separate from the central calculation unit of the computer (14). The device (20) is coupled to an interface (18) of the computer (14) that is linked to an output device (16), in such a way that it detects the signals used for the verification, in order to output the file furnished with the digital signature.

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

G06F 1/00

IPC 8 full level (invention and additional information)

G06F 1/00 (2006.01); G06F 21/60 (2013.01); G06F 21/71 (2013.01); G06F 21/85 (2013.01)

CPC (invention and additional information)

G06F 21/606 (2013.01); G06F 21/71 (2013.01); G06F 21/85 (2013.01); G06F 2221/2153 (2013.01)

Citation (search report)

See references of WO 0146785A3

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 0146785 A2 20010628; WO 0146785 A3 20011206; DE 19961838 A1 20010705; EP 1240569 A2 20020918; US 2003140229 A1 20030724

INPADOC legal status


2006-12-20 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20060703

2006-12-06 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20061031

2002-09-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020619

2002-09-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

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