EP2304641A1 - Procédé et dispositif d'identification d'une personne au moyen de son comportement lorsqu'elle tape sur un clavier en fonction de la répartition dans l'espace des touches d'un clavier - Google Patents

Procédé et dispositif d'identification d'une personne au moyen de son comportement lorsqu'elle tape sur un clavier en fonction de la répartition dans l'espace des touches d'un clavier

Info

Publication number
EP2304641A1
EP2304641A1 EP09765458A EP09765458A EP2304641A1 EP 2304641 A1 EP2304641 A1 EP 2304641A1 EP 09765458 A EP09765458 A EP 09765458A EP 09765458 A EP09765458 A EP 09765458A EP 2304641 A1 EP2304641 A1 EP 2304641A1
Authority
EP
European Patent Office
Prior art keywords
keys
key
data
keyboard
person
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Withdrawn
Application number
EP09765458A
Other languages
German (de)
English (en)
Inventor
Thomas Wölfl
Thomas Grundner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Psylock GmbH
Original Assignee
Psylock GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Psylock GmbH filed Critical Psylock GmbH
Publication of EP2304641A1 publication Critical patent/EP2304641A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints

Definitions

  • the present invention relates to a method and a device for identifying a person in which a keyboard is provided with a plurality of keys to which the person to be identified makes an input in which a plurality of keys are operated, so that due to the characteristic of the key operation identification of the Person takes.
  • the invention is based on the recognition that an improvement of the identification possibility and thus increase the identification security and reliability is given by the local position of the keys to be operated is included in the evaluation. As a result, further characteristics of the typing behavior of a user, which are due to the spatial distribution of the keys on a keyboard, can be utilized for the identification or influences when using different keyboards can be avoided.
  • the invention can be used in combination with all known methods and devices for identifying a user on the basis of his typing behavior, the prior art methods and devices usually having detection devices which record tipproh data upon actuation of the keyboard, which information about the actuated buttons and / or or the time of the operation and / or the duration and the nature of the operation.
  • the type of operation can be on the one hand, the information about whether it is the pressing and / or releasing the button and / or with what pressure the button or a touch-sensitive typing field or the like is actuated.
  • the method may provide information about the distance of the keys from each other, the distance of groups of keys to each other, for example keypads such as the numeric keypad on a PC keyboard Distance of the keys or groups of keys to each other, for example along coordinate axes, as well as the coordinates of keys are provided in a coordinate system. Further information about the local position or distribution of the keys can be found in the information about the Order along certain lines, columns, rows, the arrangement in certain fields and in turn the position within the rows, columns or fields and / or neighborhood information to the individual keys include. Overall, a wide variety of information about the local position of the actuated buttons can be provided and used.
  • the error frequency or frequency for example, displayed by using the delete key or the tip rate, which provides information about how many words are written in a certain time, can also be used, wherein
  • the tip rate can be determined by the number of typed spaces.
  • the attack frequency ie the number of key presses per unit time, as well as other information regarding the frequency of use of certain function keys, the selection of certain keys that are provided on the keyboard repeatedly, such as the use of the left or right shift key , are used.
  • the consideration of the local position of the actuated keys can now take place in such a way that the local position of the keys, ie corresponding coordinates or distance values or the like, are set in relation to determined raw tip data and / or features so as to generate location-related features.
  • a transition speed can be generated as a location-related feature.
  • this can also lead to directional speeds as location-related features.
  • distance characteristics and time characteristics can be used to determine speed characteristics as location-related features that can contribute to improved identification.
  • the features for multiple key presses i. H. both the location-related features and the non-location-related features may be further processed, for example, to feature data items representing, for example, averages or totals or the like for particular determined data.
  • an average value can be formed as a function data feature for the holding duration of the keys for all keys.
  • corresponding function data characteristics such as average holding durations, can also be taken over into the feature fields or vectors.
  • a detection device for acquiring raw tip data and a storage unit for storing reference data and a comparison unit for comparing the reference data with data from the typing sequence entered in the access request
  • the device has information about there must be a local distribution of keys on the keyboard or there must be an opportunity to gain access to this information. This can be done, for example, by must be entered into the device control, which keyboard is used.
  • the device can determine itself by means of an automatic identification of the connected keyboard corresponding information, for example, from a central memory location, for example via remote data communication, the position data of the keys are queried to a keyboard type.
  • the detection device additionally or alternatively to the keyboard associated sensors can be realized in particular by a data processing program which detects the electrical signals of the keyboard or a typed field with appropriate operation.
  • the identification device and in particular the evaluation unit and / or comparison unit is formed by a programmatically designed data processing device or integrated into this.
  • Figure 1 is a schematic representation of a device according to the invention with a keyboard for entering the typing sequence for identification;
  • Figure 2 is a plan view of a keyboard for use with the present invention;
  • Figure 3 is a plan view of another embodiment of a keyboard for use with the present invention.
  • Figure 4 is a diagram illustrating the timing of a keyboard operation using the example of the keys for the letters x, y and z.
  • PREFERRED EMBODIMENTS 1 shows a schematic representation of a keyboard 1, which is operatively connected to a data processing device, such as a personal computer PC 2, wherein the data processing device 2, a display device 3, such as a monitor or screen can be arranged.
  • a data processing device such as a personal computer PC 2
  • a display device 3 such as a monitor or screen
  • the keyboard 1 comprises a plurality of keys or keypads 4, which can be operated by pressing with a finger.
  • the keyboard 1 shown in FIG. 1 may, for example, be a restricted number block which is only used for access control for a room or the like.
  • the keyboards for use in the present invention may be of a different type.
  • FIG. 2 shows a keyboard commonly used with a personal computer PC.
  • the keyboard 10 has a control and data line 11 for connection to a corresponding data processing device (not shown).
  • the keyboard 10 also has a plurality of keys or keypads 14 arranged in two key blocks 12 and 13.
  • a common PC keyboard may be the so-called numeric keypad (keypad 13) and a keypad with keys that include the letters of the alphabet, function keys, etc. (keypad 12).
  • the keys 14 are arranged in the keyboard of the embodiment of FIG. 2 in columns 15 and rows 16 arranged perpendicular to one another, so that they extend along the axes of a Cartesian coordinate system x-y.
  • each key or each typing field 14 can be assigned an x-y coordinate, wherein due to the spatial extent of the key or typing field 14, the center or center point of a corresponding key 14 can be selected as the reference point.
  • the keys may also be arranged in staggered rows or columns or in oblique rows or columns or in any desired shape.
  • the key for the letter x indicates the xy coordinates (3, 4). while the key for the letter y has the xy coordinates (6, 3) and the key 14 for the letter z has the xy coordinates (7, 1).
  • all keys 14 of keypad 12 and keypad 13 can be assigned unique spatial locations.
  • the distance or the distance d 3 between the keys for the letters x and y can be determined from the xy coordinates.
  • d ⁇ the distance of the keys for the letters x and y in the x-direction
  • d 2 the distance of the keys for the letters x and y in the y-direction
  • a relation of the keys 14 can also be determined separately for the x and y directions, that is, for example, distances in the x and y directions, or in other arbitrary directions.
  • keys such as keypads 12 and 13 of the keyboard of FIG. 2
  • relationships of groups of keys such as keypads 12 and 13 of the keyboard of FIG. 2 may also be determined.
  • the distance d 4 of the key fields can be used.
  • the keypads or groups of keys may be arbitrarily selected and are not limited to physically separate keypads such as the numeric keypad and the remaining keys of the keypad of FIG. Rather, keypads within an array of adjacent keys or keypads 14 may also be defined.
  • any other arbitrarily shaped keyboard can also be used for the invention, in which case also the local distribution of the keys, for example using a Cartesian coordinate system, can be clearly identified.
  • a Cartesian coordinate system instead of a Cartesian coordinate system, another coordinate system, such as a polar coordinate system, may be used.
  • the keyboard 100 which in turn comprises a data and control line 111 to a data processing device, not shown, similar to the embodiment of Figure 2, a keypad 112 and a keypad 113, which are spatially separated by a Distance are separated.
  • Keypads 112 and 113 include a plurality of keys or tine pads 114 which, however, are not arranged in straight and mutually perpendicular rows and columns, as in Figure 2, but in angularly spaced columns 115 and rows 116 which are curved. Accordingly, it is appropriate to use a polar coordinate system ( ⁇ , r) according to the radius of gyration to define the exact local distribution of the keys 114.
  • the individual positions of the keys can be described exactly and determine appropriate distances between the individual keys, the direct distance of the keys to each other and the directional distance along a specific axis or direction can be determined defined.
  • the position of the individual keys can be defined by assigning them to certain rows and columns and specifying the position in the corresponding row or column by means of position numbers, for example.
  • a distance d 4 between the keypads 12 and 13 can also be determined and used to evaluate the typing behavior.
  • FIG. 4 shows in a flow chart along a time axis t the sequence of a typing sequence with the typing sequence xyzxy in which the corresponding keys for the letters x, y and z are pressed in the corresponding sequence.
  • an actuation of the keys or tip pads 4, 14, 114 is carried out at the times a to j.
  • the key for the letter x is pressed, while at time c, the key x is released.
  • the key y is pressed and released at time e.
  • the key z is depressed at time d and released at time f, while the key x is pressed again at time g and released at time h.
  • the key y is pressed a second time at time i and released again at time j.
  • the pressure p can be determined, with which the keys 4, 14, 114 are acted upon by the user. This is likewise illustrated in FIG. 4, whereby here it is indicated purely schematically that there is a constant pressure between pressing and releasing. However, the pressure can also have a certain time course, which can also be used as a characteristic for the typing behavior. As the diagram of Figure 4 shows, the key x is subjected to a lower pressure than the key y or the key z, in turn, the key y is operated with a lower pressure than the key z.
  • the detection device of a device which can be realized, for example, in a data processing device 2 by a corresponding data processing program in such a way that values determined by sensors on the keyboard are detected, information as to which buttons are actuated at what time is determined and stored , This information represents the raw tip data. From the raw tip data, corresponding features, such as transition durations t 2, t 3 or holding duration t 1? be determined, which in turn can be further processed for all key presses or for specific keys to average values (function data characteristics). Similarly, many different features, such as transition durations, transition speeds or holding durations, or like features, such as holding durations for various specific keys, can be summarized into feature fields or vectors.
  • the data determined in this way can be used to identify a person who makes a key input, wherein the corresponding data, which are determined during access control, are compared with reference data which are deposited for a specific user.
  • the comparison can be made in a variety of ways by a direct pattern comparison or by statistical or other mathematical methods. It is essential that in the present invention, the position of the actuated keys is included, so that an improvement in the characterization of the typing behavior is possible. This results from the fact that the typing behavior is influenced by the local arrangement of the various keys, it being understood that, with consecutive keys that are close to each other, the transition durations are much shorter than with widely spaced keys.
  • the key sequence shows that with a key sequence xyz the subsequent keys are pressed much faster so that overhauls occur; H. the key y is already pressed before the key x is released and the key z is already pressed before the key y is released, while in the key sequence zx, in which there is a large distance between the successive keys, no overhaul takes place and the transition period accordingly is long.
  • corresponding speeds can also be determined, for example for the transition period t 2 from the transition of the key x to the key y by dividing the distance d 3 by the transition duration t 2 .
  • Directional velocities can also be determined, such as transition velocities in the x-direction or in the y-direction. For this purpose, the distances in the x-direction d] or in the y-direction d 2 must be divided by the corresponding transition duration t 2 .
  • This transition speed can also be referred to as the Manhattan Speed as the keyboard is compared to the block layout in Manhattan and the shift from one key to another can be considered moving from one block in Manhattan to another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Collating Specific Patterns (AREA)

Abstract

La présente invention concerne un procédé et un dispositif permettant d'identifier une personne au moyen de son comportement lorsqu'elle tape sur un clavier. Selon l'invention, la position dans l'espace des touches actionnées (14) est prise en compte lors de l'évaluation de l'actionnement des touches.
EP09765458A 2008-06-19 2009-06-19 Procédé et dispositif d'identification d'une personne au moyen de son comportement lorsqu'elle tape sur un clavier en fonction de la répartition dans l'espace des touches d'un clavier Withdrawn EP2304641A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008002544A DE102008002544A1 (de) 2008-06-19 2008-06-19 Verfahren und Vorrichtung zur Identifizierung einer Person mittels ihres Tippverhaltens unter Berücksichtigung der örtlichen Verteilung der Tasten einer Tastatur
PCT/DE2009/075028 WO2009152822A1 (fr) 2008-06-19 2009-06-19 Procédé et dispositif d'identification d'une personne au moyen de son comportement lorsqu'elle tape sur un clavier en fonction de la répartition dans l'espace des touches d'un clavier

Publications (1)

Publication Number Publication Date
EP2304641A1 true EP2304641A1 (fr) 2011-04-06

Family

ID=41119590

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09765458A Withdrawn EP2304641A1 (fr) 2008-06-19 2009-06-19 Procédé et dispositif d'identification d'une personne au moyen de son comportement lorsqu'elle tape sur un clavier en fonction de la répartition dans l'espace des touches d'un clavier

Country Status (7)

Country Link
US (1) US20110185416A1 (fr)
EP (1) EP2304641A1 (fr)
JP (1) JP2011524580A (fr)
CN (1) CN102067149A (fr)
DE (1) DE102008002544A1 (fr)
EA (1) EA201071325A1 (fr)
WO (1) WO2009152822A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102009044455A1 (de) 2009-11-06 2011-05-12 Psylock Gmbh Verfahren und Vorrichtung zur Vermeidung von Manipulationen bei Authentifizierungs- und/oder Identifizierungssystemen mittels Tippverhaltens
WO2011054718A1 (fr) 2009-11-06 2011-05-12 Psylock Gmbh Procédé et dispositif permettant d'éviter des manoeuvres frauduleuses dans des systèmes d'authentification et/ou d'identification à l'aide du comportement de frappe au clavier
US9256715B2 (en) * 2012-03-09 2016-02-09 Dell Products L.P. Authentication using physical interaction characteristics
US9690389B2 (en) * 2013-09-19 2017-06-27 Dell Products L.P. Force sensing keyboard with automatic adjustment of actuation force base on user typing style
CN106846008B (zh) * 2016-12-27 2021-06-29 北京五八信息技术有限公司 营业执照验证方法及装置
US11042627B2 (en) * 2018-06-29 2021-06-22 Paypal, Inc. System and method for implementing keyboard linked authentication challenges
CN110263337B (zh) * 2019-06-17 2023-06-20 北京百度网讯科技有限公司 输入行为识别方法、装置、设备和介质
KR102458700B1 (ko) * 2022-05-10 2022-10-25 (주)에어패스 키보드 자판 제어를 이용한 콘텐츠 동작시스템
DE102022127225A1 (de) 2022-10-17 2024-04-18 Inventus Engineering Gmbh Vorrichtung und Verfahren zum Steuern von Tasteneinheiten

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Also Published As

Publication number Publication date
CN102067149A (zh) 2011-05-18
US20110185416A1 (en) 2011-07-28
DE102008002544A1 (de) 2009-12-24
EA201071325A1 (ru) 2011-06-30
JP2011524580A (ja) 2011-09-01
WO2009152822A1 (fr) 2009-12-23

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