EP 1240569 A2 20020918 - 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
Application
Priority
- DE 19961838 A 19991221
- EP 0013122 W 20001221
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
IPC 8 full level
G06F 1/00 (2006.01); G06F 21/00 (2006.01); G06F 21/60 (2013.01); G06F 21/71 (2013.01); G06F 21/85 (2013.01)
CPC (source: EP US)
G06F 21/606 (2013.01 - EP US); G06F 21/71 (2013.01 - EP US); G06F 21/85 (2013.01 - EP US); G06F 2221/2153 (2013.01 - EP US)
Citation (search report)
See references of WO 0146785A2
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 0146785 A2 20010628; WO 0146785 A3 20011206; DE 19961838 A1 20010705; EP 1240569 A2 20020918; US 2003140229 A1 20030724
DOCDB simple family (application)
EP 0013122 W 20001221; DE 19961838 A 19991221; EP 00987435 A 20001221; US 16813302 A 20021227