EP1352311A1 - Procede d'acces a un systeme securise - Google Patents
Procede d'acces a un systeme securiseInfo
- Publication number
- EP1352311A1 EP1352311A1 EP02727005A EP02727005A EP1352311A1 EP 1352311 A1 EP1352311 A1 EP 1352311A1 EP 02727005 A EP02727005 A EP 02727005A EP 02727005 A EP02727005 A EP 02727005A EP 1352311 A1 EP1352311 A1 EP 1352311A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- password
- concepts
- concept
- entry
- screen
- 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- Withdrawn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
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/82—Protecting input, output or interconnection devices
- G06F21/83—Protecting input, output or interconnection devices input devices, e.g. keyboards, mice or controllers thereof
-
- 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
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/36—User authentication by graphic or iconic representation
Definitions
- the present invention relates to a method allowing a user to access a secure system such as a computer, a communication network, payment terminals, etc.
- This invention relates more particularly to the security of commercial transactions paid by means of bank cards and in particular electronic transactions carried out on the Internet.
- Many secure systems such as, for example, banking systems, require a user identification and authentication step to operate them. This step generally consists in providing the system with two distinct pieces of information: an identifier (for example the name of the user, a card number, etc.) and a password known only to the user.
- PIN being the acronym of Personnal Identification Number
- PIN being the acronym of Personnal Identification Number
- Payment cards are fitted with magnetic stripes and / or integrated circuits which encode certain information such as their number and PIN code. These magnetic tracks or electronic circuits allow these cards to be used as means of access and payment in many automatic machines. as well as in ATMs or ATMs or in store payment terminals.
- These magnetic strips or electronic circuits serve to ensure the security of transactions by making it possible to check that the card holder is indeed the card holder, who must in fact enter his PIN code on the keyboard of a reader terminal. cards.
- This device checks the concordance of the numbers provided by the holder with those he reads on the magnetic tracks or in the electronic circuit, in the latter case the card reader device uses a secret key algorithm implemented inside the circuit integrated card.
- the terminal is able to interrogate, via a telecommunications network, a payment card management server which confirms to it whether the card is valid and n is not opposed.
- This password must be entered using a keyboard.
- the present invention therefore aims to provide a new solution to the aforementioned problem which does not have the drawbacks of the already known solution attempts, this invention bringing into play a particularly simple and inexpensive method and device for implementation making it possible to offer passwords that are both easy to remember for users and difficult to crack for third parties.
- the access method to a secure system is of the type according to which a user communicates to the secure system identification information and a secret password by means of an appropriate input interface.
- the method of accessing a secure system is characterized in that the password is formed by at least one concept and in that the input of the password by the user includes a step of identifying a possible graphic representation of the concept on a screen of the interface.
- the user entering the password consists in selecting from among several graphic representations appearing on said screen, at least one graphic representation showing the concept forming the password.
- the passwords are formed by a concept or by a combination of concepts, the concept or concepts forming the password being chosen from a predetermined list. of concepts.
- the concepts selected from the list of concepts admit a plurality of graphic representations.
- the graphic representations displayed on said screen consist of drawings and / or images and / or photographs and / or pictograms and / or sentences and / or any other form of visual illustration such as film sequences.
- the user does not a priori know the graphic representations which are presented to him.
- the graphic representations change regularly over time.
- the password is formed from a plurality of ordered concepts.
- the graphic representations are displayed on the interface screen in the form of at least one board bringing together a plurality of thumbnails.
- each board is generated by randomly placing thumbnails showing or not showing the concept or concepts defining the password.
- each thumbnail displayed on a board is chosen randomly either from the set of thumbnails showing the concept or concepts defining the password or from the '' set of thumbnails not showing the concept or concepts defining the password.
- the thumbnails not showing the concept or concepts defining the password are chosen so as to repeatedly show a predetermined combination of concepts.
- the thumbnails are selected from the identification information communicated by the user.
- each thumbnail is generated from a library of thumbnails selected and indexed according to the concepts they show.
- each board has at least nine vignettes and in that each vignette shows at least nine concepts.
- the user entering the password consists in identifying in a board if at least one thumbnail presents all the concepts forming the word past.
- the user entering the password consists in identifying through a plurality of boards if at least one thumbnail presents all of the concepts forming the password.
- the password comprising a plurality of concepts
- the input of the password by the user consists in identifying in a board, a sticker for each concepts forming the password.
- the password comprising a plurality of ordered concepts
- the input of the password by the user consists in identifying in at least one board, a thumbnail for each of the concepts in the order of the concepts forming the password.
- the same sticker can be selected several times.
- the user himself chooses the or the concepts forming its password from different graphic representations presenting different concepts.
- the concept or concepts forming the password " ⁇ of a user are chosen from the level of knowledge of said user.
- a concept forming a password has representations which change cyclically over time.
- the selection of a graphic representation is carried out directly on the screen by means of a pointer or even by means of a keyboard. from code numbers assigned to each of the graphic representations.
- the identification of the graphic representation (s) incorporating the said concept or concepts forming the said password takes place via a table of transfer available to the user.
- FIG. 1 is a schematic view of an Internet access device implementing the method according to the invention
- FIG. 2 is a schematic view of a payment terminal that reads a bank card implementing the method according to the invention
- FIG. 3 schematically illustrates part of a terminal implementing the method according to the invention.
- the user is installed in front of a computer which is, for example, his personal computer 2.
- This computer 2 is connected to the Internet 8 and allows access to a merchant website 4 managed by a supplier.
- This site 4 offers for sale goods or services.
- the user has a payment card to pay.
- This payment card 1 was obtained from an accredited financial institution.
- the financial institution issued the user with an appropriate password in the form of a combination of one or more concepts. The operation of this password will be described in more detail with reference to FIG. 3.
- the user having decided to purchase for a given amount, a product or a service offered for sale on the merchant web server 4, such as that downloading a file (text, image, sound, etc.), it then triggers an order by appropriately designating the references and the price of the product it wishes to acquire as well as the method of payment chosen, namely through his card 1.
- the Web merchant site 4 then transmits through a secure link to a server 7, also called an authentication server, managed by the aforementioned financial organization or by a specialized company, the characteristics of the order so that the latter controls the payment .
- the authentication server 7 then sends the user an electronic invoice bearing the references of the product ordered and of the merchant site 4.
- the user pays this invoice by notably supplying the identification data required by the merchant site 4, and in particular the corresponding card ID and password 1.
- the server 7 successively shows different screens on the screen 3 of the computer 2. Each plate consists of a series of numbered thumbnails, these thumbnails can be drawings, photographs, pictograms or even sentences. The user must then recognize for each board, the thumbnail in which one of the concepts is represented or the combination of the concepts forming his password, for example by entering the number of the selected thumbnail or by clicking on the latter using a pointer 6.
- the authentication server 7 records the information supplied by the user and checks whether the selected thumbnails incorporate the concepts forming the password. If all transmitted information is correct, the server 7 validates the transaction. The web server 4 then delivers the product requested from the user.
- Any third party monitoring the communication between the computer 2 and the authentication server 7 is unable to detect the password since a single sticker is able to understand several dozen concepts.
- FIG. 2 describes the means necessary for implementing a second application of the method which is the subject of the present invention, which consists in enabling the identification of a user during an electronic transaction by means of a bank card made on a portable terminal 22.
- the terminal 22 comprises in known manner, at least one bank card reader 21, a data entry keyboard 24, a display screen 23, a power supply in the form in particular of a rechargeable accumulator, an electronic control circuit in the form of a printed circuit board incorporating a microcontroller and a transmitter / receiver module of which only the antenna 25 has been shown.
- This radio transmitter / receiver module enables communication with a remote authentication financial server
- radio-telecommunications network such as a GSM network.
- the user To manage a payment via this terminal, the user inserts his bank card into the reader, which allows the terminal to come and read the identifier of this card. This information is sent to the server 27 for verification, the latter insofar as the card is in force then triggers the password entry phase by sending a series of plates formed by several numbered thumbnails intended to be displayed on the screen 23. The user selects the thumbnails corresponding to his password by entering the corresponding numbers. The code formed by the successive numbers of the selected thumbnails is then communicated to the authentication server 27 which checks whether the selected thumbnails correspond to the password and if so, sends a validation message of the transaction to the terminal 22.
- the present invention proposes to replace conventional passwords formed of alphanumeric sequences which must be entered on a keyboard, by the selection of images associated with the combination of one or more more or less general terms or concepts.
- the basic principle of the invention therefore rests on the association between multiple and changing graphic representations and the combination of one or more invariant concepts constituting the password.
- Each concept used is preferably a term with a perfectly defined meaning, which admits no ambiguity (for example: animal, human being, bicycle, sun, moon, etc.).
- Each term is associated with easily identifiable graphic representations, whether in the form of drawings, photos, pictograms, sentences within which the word is found and more generally all other forms of visual illustrations such as film sequences, etc. .
- a concept is the general abstract representation of an object or a set of an object which is defined according to its understanding (the alphabet is formed from the set of letters) and according to its extension (the alphabet consists of letters a, b, c, d, ..., z).
- the human brain manipulates concepts quickly and easily and is able to quickly establish a link between a concept and graphical representations of the latter, despite the great diversity of these. Thus, it is relatively easy for a human brain to distinguish between the face of a woman and that of a man.
- the user's brain is used to extract the concepts from an image.
- This operation which is well adapted to the human brain, is today extremely difficult for a computer.
- the user having a password in the form of a combination of one or more concepts, entering this password on a terminal will consist in selecting one or more images or thumbnails 36 within boards 35 appearing on the screen 33 of the terminal serving as an interface with the secure system for entering user identification and authentication data.
- Entering the password consists of either pointing the chosen thumbnail using an appropriate pointer or entering the number 37 of this sticker on the keyboard 34 of the terminal.
- a first alternative embodiment of the method consists in displaying successively N boards, N being a natural integer at least equal to 1, N being for example equal to four.
- N being for example equal to four.
- Each of these N plates is formed of M thumbnails, M being a natural number, M possibly being equal for example to nine or ten. The user must select for each board displayed on the terminal screen, the thumbnail in which the combination of concepts forming the password is represented.
- the first variant therefore consists in selecting only the thumbnails which contain all the concepts forming the combination defining the password.
- a second variant consists in selecting a thumbnail by concept whatever the order of these concepts in the combination.
- P concepts P natural non-zero integer
- the authentication server will present P boards, ie in the example chosen two boards.
- the holder can select a sticker representing the concept "two", for example two apples on a plate, then in the second board select a sticker representing the concept "sport”, for example eight rugby players aligned for a touch.
- the authentication server can present PxQ boards (natural Q greater than or equal to two).
- PxQ boards natural Q greater than or equal to two.
- the user will have to choose for each of the P concepts of his password, Q thumbnails representing said concept and this in any order.
- the authentication server may have only one board. The user can then select the thumbnails representing each of the concept of his password, the same thumbnail being able to be selected several times, in any order. So if on this single board, there is number two the sticker representing two apples on a plate and number seven the sticker representing eight rugby players aligned for a key, the user can then successively press the numbered keys two and seven on the keyboard. 34 on the terminal or else on keys seven and two.
- a third variant consists in selecting a thumbnail by concept while respecting the order of these concepts in the combination. So let's always assume that the password is formed from the ordered combination of P concepts (P natural non-zero integer), for example the two concepts "sport” then "two". In this case, the authentication server will present P boards, ie in the example chosen two boards. In the first plate, the user will have to select a sticker representing the concept "sport", for example the photo of a judoka, then in the second plate select a sticker representing the concept "two", for example two hens in a field .
- P concepts P natural non-zero integer
- the authentication server can present PxQ boards (natural Q greater than or equal to two). In this case, the user must successively choose Q times, P thumbnails representing in order each of the P concepts.
- the authentication server may have only one board. The user can then select the thumbnails representing each of the concepts and this in the order of the combination, the same thumbnail being able to be selected several times. Thus, if on this single board appears in number two the sticker representing two apples on a plate and in number seven the sticker representing eight rugby players aligned for a touch, the user must then successively press the numbered seven and then two keys on the terminal's keyboard 34.
- the authentication server has a database which lists the various elementary concepts used to form passwords. Each elementary concept is for example coded in the form of a 32-bit number.
- the authentication server also has a library where thumbnails are stored, such as drawings, photographs, pictograms, sentences, etc.
- Each vignette incorporating a plurality of elementary concepts is found to be indexed with the different characteristic codes of each of the concepts which are represented there.
- each new sticker entered in the library is subject to a preliminary work of indexing according to the list of elementary concepts.
- each vignette represents a more or less abstract scene which may contain a large number of possible concepts. It should be noted that a simple clown face can support a large number of concepts: “being alive” (as opposed to inanimate things), “human being” (as opposed to animals), “masculine” (by opposition to feminine), “joy”, “games”, “circus” ....
- thumbnail bank used to operate does not need to be frozen but can be permanently renewed. Indeed, any image is able to support a concept. This permanent modification of the images is an additional element of security.
- the server When the server has received the user identifier, it is able to know the password of the latter, it therefore develops each of the boards to be seen by the user, by randomly choosing a thumbnail from the thumbnails containing the concepts or the combination of concepts and by completing this thumbnail with other thumbnails drawn randomly from those not representing the concepts of the password .
- the authentication server randomly places a sticker in the sheet incorporating a representation of the concepts forming the user's password in the middle of other thumbnails n 'not incorporating said concepts.
- These other thumbnails which can be drawn randomly from the thumbnail library of the server, can also, as a variant, be chosen so as to always present predetermined concepts distinct from those making up the password but recurrent since they are present at each identification. This method of introducing decoy concepts into the boards makes it futile to attempt an analysis by a human operator of the boards presented during each identification attempt.
- the server can itself produce its thumbnails from elementary representations of each of the basic concepts.
- an elementary representation may contain several distinct concepts.
- the server then composes from these elementary representations the scenes forming the thumbnails as a function of the combination of concepts that it wishes to reveal.
- each plate presented to the user incorporates a sticker representing one of the concepts or the combination of the concepts forming the password. It can alternatively be provided that on a board does not appear a sticker representing one of the concepts or the combination of the concepts forming the password. In this case, the user has a specific key on the terminal keyboard to indicate this result.
- the concepts are invariant in particular as to the nature if not as to the form of their representations.
- provision can be made to change the nature of these representations, for example cyclically as a function of the calendar.
- thumbnails comprise the concept or the combination of concepts which are the subject of the password, it will then suffice to select any of these images to identify themselves.
- the latter may not indicate the number of the selected thumbnails but a number encrypted from a conversion or transcoding table, which will have been discount and keep on him (for example with his payment card).
- a conversion or transcoding table consists of the following table: Number of the selected thumbnail Number corresponding to enter 1 2 2 “7
- Such a table can be regularly renewed, for example during a specific connection to the authentication server, through sticker numbers corresponding to predetermined concepts.
- the server then sends him one hundred thumbnails, five of which correspond to predetermined thumbnails, each of which has a serial number ranging from 00 to 99.
- the user locate the five thumbnails and note their numbers.
- the result is a sequence of ten digits, for example: 35,96,04,21,78 which form the new column of the corresponding numbers to be entered from the transcoding table, thus one is coded three, two is coded five, three is new code, etc.
- this way of operating the renewal of the transcoding table is given only by way of nonlimiting example.
- the operation can also be done iteratively in several round trips with the server.
- using a conversion table is not the only possible way to scramble the numbers of the thumbnails.
- the password associated respectively with the card 1 and 21 is stored in the authentication servers 7 and 27, this is not however compulsory.
- This password can also be stored directly in the payment card, for example in the encrypted form of a series of 32-bit numbers.
- this series of encrypted numbers is read and transmitted to the authentication server. This from an appropriate key is to even to decode this data and to reconstitute the combination of concepts object of the password.
- the server is then able to generate from its image library appropriate boards to display on the screen of the corresponding terminal.
- the level of generalization of the concepts used in the definition of the password and more generally the choice of these concepts can be adapted according to the sociological profile or the level of knowledge or the tastes of each user, and this as well as the choice of representations or type of representations that will be presented to it. So for teenage users, you can select thumbnails or comic book characters.
- the password can be arbitrarily determined by the body managing the secure system to which it gives access (the financial body in the case of a bank card) or else left to the choice of the user.
- the user upon joining the secure system has access to concept selection software using the thumbnail library of the authentication server.
- the user is offered by this software a certain number of images and selects those which he likes.
- the software displays the different concepts present in these images and the user chooses among them the combination of one or more concepts which then becomes his password.
- the software can then test the ability of the user to enter his password by offering him different images and asking him to select those of these images which contain each of the chosen concepts or even the combination of these concepts.
- thumbnails used by the server authentication can be changed periodically. They can be used to support advertisements by reproducing, for example, advertising posters.
- the board or boards coming displayed on the screen of the input interface can contain additional information stylized or not, for example superimposed on the thumbnails.
- This information characterizes the secure system to which the user wishes to access, for example, the amount and the currency during a payment. If this information does not correspond to what the user expects, the latter can stop the procedure for accessing the secure system.
- the presence of this information during the user authentication operation reinforces the security of the authentication and acceptance process and reduces the risk of repudiation, that is to say the possible contestation of the user. access to the secure system for a given amount.
- the present invention makes it possible to solve the problem of diversification, that is to say the use of variable representations, of a constant and secret password formed by the combination of concepts, using only one important characteristic of the human brain which is conceptualization.
- the present invention therefore allows identification of a user who is perfectly secure even if it is directly spied on by an observer. It is therefore perfectly suited to be implemented in an unprotected environment of the type ATM on a street or for purchases on an Internet merchant site.
- the implementation of the invention does not require substantially any modification of the existing infrastructure insofar as the secure systems are generally connected to RF communications networks allowing access to an authentication server.
- the invention may also be applicable to payment by means of a television having a pointing device or a keyboard and a memory card reader / connector.
- the invention is extremely easy to be implemented by users regardless of their level of education.
- the implementation of the invention is otherwise pleasant or even fun.
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computer Security & Cryptography (AREA)
- Software Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- User Interface Of Digital Computer (AREA)
- Storage Device Security (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0100200A FR2819323B1 (fr) | 2001-01-05 | 2001-01-05 | Procede d'acces a un systeme securise |
| FR0100200 | 2001-01-05 | ||
| PCT/IB2002/000007 WO2002054199A1 (fr) | 2001-01-05 | 2002-01-04 | Procede d'acces a un systeme securise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1352311A1 true EP1352311A1 (fr) | 2003-10-15 |
Family
ID=8858605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02727005A Withdrawn EP1352311A1 (fr) | 2001-01-05 | 2002-01-04 | Procede d'acces a un systeme securise |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1352311A1 (fr) |
| FR (1) | FR2819323B1 (fr) |
| WO (1) | WO2002054199A1 (fr) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1408391A1 (fr) | 2002-10-11 | 2004-04-14 | Telefonaktiebolaget LM Ericsson (publ) | Méthode associant une information d'authentification d'un appareil sécurisé à l'identifiant d'un appareil non-sécurisé |
| WO2004081767A1 (fr) * | 2003-03-11 | 2004-09-23 | Koninklijke Philips Electronics N.V. | Procede et systeme permettant de composer des messages a distance |
| US8239937B2 (en) | 2004-12-16 | 2012-08-07 | Pinoptic Limited | User validation using images |
| EP2020114A4 (fr) | 2006-05-24 | 2014-01-22 | Vidoop L L C | Système d'authentification d'image et de sécurité |
| US8732477B2 (en) | 2006-05-24 | 2014-05-20 | Confident Technologies, Inc. | Graphical image authentication and security system |
| US9189603B2 (en) | 2006-05-24 | 2015-11-17 | Confident Technologies, Inc. | Kill switch security method and system |
| US20070277224A1 (en) | 2006-05-24 | 2007-11-29 | Osborn Steven L | Methods and Systems for Graphical Image Authentication |
| US8621578B1 (en) | 2008-12-10 | 2013-12-31 | Confident Technologies, Inc. | Methods and systems for protecting website forms from automated access |
| EP2849082B1 (fr) * | 2012-05-04 | 2017-12-27 | Rowem Inc | Appareil de définition de mot de passe iconique et procédé de définition de mot de passe iconique au moyen d'un mot-clé d'icône |
| CZ309308B6 (cs) * | 2013-07-12 | 2022-08-17 | Aducid S.R.O. | Způsob zadávání tajné informace do elektronických digitálních zařízení |
| US11693944B2 (en) * | 2013-09-04 | 2023-07-04 | AEMEA Inc. | Visual image authentication |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5465084A (en) * | 1990-03-27 | 1995-11-07 | Cottrell; Stephen R. | Method to provide security for a computer and a device therefor |
| GB9424791D0 (en) * | 1994-12-08 | 1995-02-08 | Philips Electronics Uk Ltd | Security code input |
| JP3764961B2 (ja) * | 1995-11-30 | 2006-04-12 | カシオ計算機株式会社 | シークレットデータ記憶装置及びシークレットデータの読み出し方法 |
| DE19620346A1 (de) * | 1996-05-21 | 1997-11-27 | Bosch Gmbh Robert | Grafische Paßworteingabe |
-
2001
- 2001-01-05 FR FR0100200A patent/FR2819323B1/fr not_active Expired - Fee Related
-
2002
- 2002-01-04 EP EP02727005A patent/EP1352311A1/fr not_active Withdrawn
- 2002-01-04 WO PCT/IB2002/000007 patent/WO2002054199A1/fr not_active Ceased
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO02054199A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2819323B1 (fr) | 2003-04-25 |
| WO2002054199A1 (fr) | 2002-07-11 |
| FR2819323A1 (fr) | 2002-07-12 |
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