EP1546840A2 - Verfahren und vorrichtung zum digitalen signieren von daten - Google Patents
Verfahren und vorrichtung zum digitalen signieren von datenInfo
- Publication number
- EP1546840A2 EP1546840A2 EP03753456A EP03753456A EP1546840A2 EP 1546840 A2 EP1546840 A2 EP 1546840A2 EP 03753456 A EP03753456 A EP 03753456A EP 03753456 A EP03753456 A EP 03753456A EP 1546840 A2 EP1546840 A2 EP 1546840A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- data
- display unit
- user
- signing
- display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
Definitions
- the invention relates to a method for digitally signing data, in which data to be signed are transferred from a data reservoir to a signing device, displayed there in a display unit and signed by a user due to the operation of a confirmation device.
- the invention further relates to a device for digitally signing data with a communication interface, for communication with a data reservoir, with a type display unit for displaying the data to be signed and a confirmation device which can be operated by a user.
- a device for generating cryptographic signatures which has a bidirectional data interface for exchanging data with a computer, an operating element for releasing a signature calculation operation, a data display unit for displaying the data to be signed and an integrated processor immediate execution of the signature calculation operation.
- the user has direct control over which data is provided with the digital signature. In particular, only those data are signed that are displayed to the user on the data display unit. It is therefore not possible for a virus program to show the unsuspecting user the data actually to be signed on the screen of a computer, while manipulated or completely exchanged data are signed with the aid of a signature program.
- a disadvantage of the known device is that the space on the data display unit is generally not sufficient to display large amounts of data.
- a method for signing a message is known from DE 19747603 C2.
- the message is transmitted from a sending device, for example a computer, to a receiving device, for example a message server, and then forwarded by the receiving device to a mobile radio telephone, where the message can be displayed to the user. If the user wants to sign the message, he can trigger a signing process. The signed message is then transmitted back from the mobile radio telephone to the receiving device.
- Another disadvantage of this method is that the display unit of the mobile radio telephone is generally not sufficient to display large amounts of data.
- the object of the invention is to specify a device and a method with the aid of which large amounts of data can be displayed to a user in a simple manner before signing.
- the method for digitally signing data is in particular carried out in such a way that an image section displayed by the display unit is shifted by the user operating a navigation device. Even if the display unit of the signing device is sufficient only for a partial representation of the data to be signed, the displayed image section can be moved by the user so that all data to be signed can be viewed by the user. NEN. It is essential here that the data represented by the display unit are present in the display device, so that manipulation of the data is no longer possible. When using the method, the user is able to view the data to be signed overall in a safe environment and then to trigger a signing process.
- a signing device set up to carry out the process includes a navigation device through which the user can move the image section shown in the display unit.
- navigation keys are formed on the marking device. By using the navigation keys, the user can move the image section shown in the display unit.
- sensor rows are on the sig. nier réelle formed and the user can move the image section displayed by the display unit by running a finger along the sensor lines.
- the marking device is provided with a biometric sensor and the user shifts the image section shown in the display unit by scanning the biometric sensor with a finger, the image section following the movement of the finger.
- a further advantageous embodiment of the invention provides that those areas whose sections have already been shown in the display of the marking device in the display of the terminal by highlighting, for example by highlighting the corresponding area be identified. In this way, the user can easily check whether he has already seen all the areas before starting the signing process.
- a particularly advantageous embodiment results if a chip card is used as the signing device. This is because the size of the chip cards, which are standardized in terms of their size, cannot be increased arbitrarily, so that a display unit formed on the chip card is limited in its extent. On the other hand, chip cards can easily be filled in by the user and can therefore be used for a variety of signing purposes.
- Figure 1 is a plan view of a chip card that is set up to sign data
- Figure 2 is a plan view of a chip card, which is equipped at its edges with sensor lines;
- Figure 3 is a plan view of a chip card with a biometric sensor.
- FIG. 1 shows a chip card 1 which is set up to sign data.
- the chip card 1 has a module 2, which comprises a processor, a data memory necessary for performing signing operations and a communication interface to a terminal for the chip card 1.
- the chip card 1 has a display 3 in which the data to be signed is shown.
- the one shown in display 3 Image section can be selected using navigation keys 4.
- bar diagrams 5 are provided which show the user the size of the image section shown in the display 3 in relation to the overall image.
- the user can run through the overall picture and check whether the data shown in the display 3 correspond overall to the data that he has entered, for example, in a PC connected to the terminal to place an order. If this is the case, the user can press a confirmation button 6, which triggers a signing process in the chip card 1.
- the signing process is carried out by the processor embodied in module 2, the processor using data memories likewise embodied in module 2. If necessary, signing data can be stored in the data memory, which are necessary for executing the signing operation.
- the signature data can e.g. key data required for signing. After the signing operation has ended, the signed data is transmitted back to the terminal via the communication interface formed in module 2.
- the communication interface to the terminal can also be used to transmit the position data of the currently selected section to the terminal, so that the display currently assigned to the terminal on the display assigned to the terminal 3 Cutout is marked.
- Excerpts that have already been viewed can be identified on the display, for example, by a colored background. The user thus has an overview of the sections already viewed or still to be viewed. If the user does not want to sign the data shown in the display 3, he can delete the data by pressing a delete key 7.
- the size of the display 3 is selected such that the display 3 is not covered even when the chip card 1 is inserted into the associated terminal.
- the size of the display 3 is therefore generally not sufficient to display large amounts of data.
- the navigation buttons 4, however, give the user the option of shifting the image section represented by the display 3 and successively displaying the entire amount of data to be signed that is transferred to the chip card. Using the bar graphs 5, the user can check whether he has actually seen the entire amount of data.
- FIG. 2 A further exemplary embodiment of chip card 1 is shown in FIG.
- the exemplary embodiment of the chip card 1 shown in FIG. 2 has sensor lines 10 on the side faces 9, which are used for navigation in the display 3. By the user running a finger 11 along the sensor lines 10, the image section in the display 3 can be shifted. The user therefore does not need to select the correct navigation button 4 as in the chip card 1 shown in FIG. 1, but can intuitively move the image content along the sensor lines 10 by a corresponding finger movement 11.
- FIG. 3 shows a further exemplary embodiment of the chip card 1, which is equipped with a biometric sensor 11.
- the image content shown in the display 3 follows this movement.
- the signing operation and the deletion operation which in the exemplary embodiments illustrated in FIGS. 1 and 2 by actuating the confirmation key 6 and the delete key 7 are triggered in the exemplary embodiment according to FIG. 3 by placing a certain finger previously registered on the chip card 1 on the biometric sensor 12.
- the size of the display 3 is selected such that the display 3 can be read by the user even when the chip card 1 is inserted into an associated terminal.
- the display 3 can also be read outside the terminal.
- the display 3 can extend essentially over the entire area of the chip card 1. This applies in particular if the display 3 is arranged on the side opposite the module 2, since the module 2 must not be covered if interference-free communication between the terminal and the chip card 1 is to be guaranteed.
- navigation keys or sensor lines can be provided, by means of which the image section represented by the display can be shifted.
- the signing process can only be triggered when the user has viewed the entire amount of data to be signed.
- a monitoring function is implemented in the chip card, which ensures that the user sees the entire amount of data to be signed.
- the monitoring function confirms the confirmation button 6 locked until the user has viewed the entire amount of data using the navigation keys 4.
- the navigation device comprises a single button, for example with the designation "Next". By operating this navigation button, the user is shown the entire amount of data in sections.
- the display 3 not only for displaying the data to be signed, but also for entering data, e.g. can be used for form fields of forms or of single-use passwords.
- query results e.g. the balances of an account query within the HBCI standard are displayed.
- the use of the chip card as a so-called smart card with Internet technology can also be considered.
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Software Systems (AREA)
- General Health & Medical Sciences (AREA)
- Computer Hardware Design (AREA)
- Computer Security & Cryptography (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Bioethics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Navigation (AREA)
- User Interface Of Digital Computer (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10245348 | 2002-09-27 | ||
| DE2002145348 DE10245348A1 (de) | 2002-09-27 | 2002-09-27 | Verfahren und Vorrichtung zum digitalen Signieren von Daten |
| PCT/EP2003/010669 WO2004031921A2 (de) | 2002-09-27 | 2003-09-25 | Verfahren und vorrichtung zum digitalen signieren von daten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1546840A2 true EP1546840A2 (de) | 2005-06-29 |
Family
ID=31984207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03753456A Withdrawn EP1546840A2 (de) | 2002-09-27 | 2003-09-25 | Verfahren und vorrichtung zum digitalen signieren von daten |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1546840A2 (de) |
| AU (1) | AU2003271640A1 (de) |
| DE (1) | DE10245348A1 (de) |
| WO (1) | WO2004031921A2 (de) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10006450A1 (de) * | 2000-02-14 | 2001-09-06 | Tegralis Gmbh | Informationssystem |
-
2002
- 2002-09-27 DE DE2002145348 patent/DE10245348A1/de not_active Withdrawn
-
2003
- 2003-09-25 WO PCT/EP2003/010669 patent/WO2004031921A2/de not_active Ceased
- 2003-09-25 AU AU2003271640A patent/AU2003271640A1/en not_active Abandoned
- 2003-09-25 EP EP03753456A patent/EP1546840A2/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004031921A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10245348A1 (de) | 2004-04-08 |
| WO2004031921A2 (de) | 2004-04-15 |
| WO2004031921A3 (de) | 2005-03-10 |
| AU2003271640A8 (en) | 2004-04-23 |
| AU2003271640A1 (en) | 2004-04-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK |
|
| 17P | Request for examination filed |
Effective date: 20050912 |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: WIREN, ARVID Inventor name: TARANTINO, THOMAS Inventor name: LAMLA, MICHAEL Inventor name: DREXLER, HERMANN Inventor name: BRAUN, WOLFGANG |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20140201 |