|Title of Invention||
"CONDITIONAL ACCESS DEVICE AND METHOD THEREOF"
|Abstract||This invention concerns a conditional access device intended to be used in liaison with host electronic equipment, constituted by a pointing peripheral device incorporating at least one micro-circuit card coupler, characterized in that it incorporates in addition, personal acquisition means particular to a user and that the said personal information s locally compared with memorized information os the microcircuit card (5) without-, the said personal intormation being transitted through the host equipment.|
|Full Text||The Field of the Invention
This invention relates to the field of conditional access devices created by a pointing device integrating one or several couplers for microcircuit cards.
The device is designed to carry out transactions secured by microcircuit cards, to identify the cardholder and/or to check different stages of transactions.
The applications mainly concern conditional access to the resources of host equipment ,conditional access to available resources on external equipment with which the host equipment is linked or connected, the management of software operating licenses stored in the host equipment or in the external equipment with which the host equipment is linked or connected or electronic payment,etc.
The meaning of 'microcircuit card1 is a support, generally a card, comprising one or several integrated circuits executing processing functions and/ or storage operations.Smart cards,or microprocessor cards, commonly known as 'chip cards', contactless cards or PCMCIA cards.are examples of these.
The meaning of "microcircuit card coupler" is any means of operating a signal exchange interface between hardware and a microcircuit card, according to standardized or specific communication protocols. Signal exchange can be carried out by an electrical connection or a wireless link such as an electromagnetic or light link.
By "host equipment " we mean a computer terminal, a workstation, a personal computer,a multimedia terminal, etc, and particularly but by no means exclusively, all the above- mentioned equipment comprising means of bidirectional connection, all be it temporary or permanent, to a local or public communications network.
The term "pointing device" means any manually operated device with which the user acts upon visual objects.lt is intended to be used with interactive host equipment having a screen and a user's graphical interface for visual objects. Examples include an optomechanical mouse pointer, an optical mouse needing a special mat, a ball or track ball, a digitizing stylus or a cursor, a touch pointer, a stick or joystick, or a remote control lever system for CD- I.
The State of the Art.
These peripheral devices work conjointly with the equipment they command and with which they are connected by the intermediary of a RS232, USB communication port or an equivalent system, or in other cases are linked by wireless transmission, for example by infrared or microwave links. In certain instances, especially when the host equipment is a portable computer, these devices are integrated into the equipment, even though the device represents a self-contained unit.
Generally, they are easily interchangeable devices because most host equipment manufacturers have adopted common standards. They are also relatively cheap in relation to the host equipment and can be replaced by a similar device independantly to the host equipment without difficulty.
It has been suggested in the state of the art to integrate a microcircuit card connector into certain peripheral pointing devices. Such was the case in the EP485275 European patent or the German patent DE4326735. The peripheral device described in the EP485275 European patent application represents the closest state of the art device. It comprises a microcircuit card connector directly linked to the common leads between the computer and the peripheral devices, allowing both signal exchange relative to the pointing functions and signal exchange for the operation of safety functions associated with the microcircuit card. The peripheral devices act in a transparent way between the microcircuit card and the computer with which it is connected. No processing occurs in the peripheral device, which only ensures the electrical link between the microcircuit card and the computer. Thus the whole of the personal identification code key-in process is done in the host equipment, which is inconvenient and constitutes a major disadvantage to the commercial development of public networks such as INTERNET.
The Objective Problem of the State of the Art.
Indeed,today's host equipment is almost always linked to at least one network, either inside an organization or to a public network like INTERNET. It is therefore possible, and even easy, for a third party to connect himself to the host equipment and examine the data processed by it. There are technical solutions to filter accessible data from third parties, but these solutions are in contradiction to most users' spirit of openess and their wish to raise the level of communication. They also require complex arbitration to
gain optimal performance which is generally beyond the scope of the average user.
Summary to the Invention
The object of the invention is to counter these drawbacks by proposing a conditional access device which considerably increases the safety level against abusive intrusions coming from third parties seeking to procure the code or access key associated to the microcircuit card through links between the host equipment and a public or internal network. An intrusion into-the computer's memory would never be allowed access to the user's certification data.
For this purpose the invention resides in the fact that the microcircuit card is operated locally, meaning in the peripheral pointing device, and not in the host equipment. This feature is essential. It ensures a separation between the user's identification, on one hand, and on the other hand, the computer and the communications network with which it is or could be connected.
The means of user identification are found in the peripheral pointing device to which only the user has access. It captures the personal data which is usually secret; for example his confidential code. This data is checked by a local microcalculator using the data- recorded on the card. The microcalculator is generally integrated into the microcircuit card,but may also be integrated into the peripheral device. This verification does not involve any transmission of secret data to the computer from either the device or according to the invention's process The comparison is expressed by approval or non- approval data of the user, which is the only data transmitted to the computer. This is essential to avoid the accessibility to confidential
data, such as a code, by a third party linked to the computer by the intermediary of a local or a telephone network
The invention's additional features
The invention is advantageously enhanced by the different features as follows :
- it comprises a sensor for the capture of a
biometrical identification signal, such as a fingerprint
image sensor and /or an eye image sensor and/or a vocal
recognition sensor ;
it comprises vocal control means for transactions ;
- the keyboard and/or the screen is/are on
the mouse's upper surface in such a way that a cover is
joined on to the mouse's casing so in a closed position,
it protects the keyboard and/or screen when the chip
card.coupler is not in use ;
- a chip card insertion slot is provided at
the level of a groove on the mouse's periphery, in the
space between the function keys and the main part of the
casing of the aforementioned mouse on which the
aforementioned keys are installed ;
- in the case in which the peripheral device
has a fingerprint image sensor, the device's casing has
a guide in which the operator's finger may be placed ;
his thumb, for example ;
the device comprises a clock under
permanent power supply which ensures the dating of operations, especially financial operations ;
the device has at least two chip card inputs ;
- it has management and execution means for
at least one security application associated with the
host equipment applicative software ;
it comprises the means of allowing
security operation transfer between storage facilities, management and execution of a security application and a microcircuit card comprising a distribution application of these security applications ;
- it comes with a clip- board and a stylus
and a double chip card coupler and has means to capture,
compress, and record written data and later unload it
onto-the host equipment :
it comprises a personal multimedia aid
and/or incorporates facilities to operate one or several desktop applications, such as a calculator, diary, or a clock etc. :
- the device comprises a permanent clock and
means of transmission to the peripheral equipment of
dated numerical data having a data sequence relative to
the authorization calculated for the micocircuit card's
stored data and the data keyed- in by the user in
addition to a data sequence given by the clock
The invention also concerns a security application management and execution process in the host equipment consisting in a comparison in the peripheral device linked to the host equipment, of personal data and data recorded in the microcircuit card without the personal data being transmitted to the host equipment, the peripheral device integrates personal data acquisition means and at least one microcircuit card connector.
In accordance with a favourable implementation mode, the process includes an extended communication protocol coming from the communiction protocol specific to the pointing means of the peripheral device. This protocol enables the use of only
one serial port between the applicative software and the pointing and security facilities amalgamated in the device according to the invention.
Thus in accordance with this favourable protocol form, the data and the commands are transmitted in the form of frames comprising a whole made up of fields each of which contain a coded sequence comprising a predetermined number of bits, each frame includes an identification field and at least one of the following fields :
- a pointing information field,
- an information field relative to secured
The information field relative to secured facilities must contain a control field which specifies the type of information followed by the optional fields giving the length of the security application message and a control field of the aforementioned message's integrity.
Advantageously,the process supplies pointing information to applicative software and at the same time ensures message transmission towards the same or another simultaneously active applicative software and its security application.
In preference, the device transmits messages emitted by secured means in frame form whose first field is the specific pointing frame modified according to the aforesaid complete message or the message divided into several frames of the same type.Thus the pointing frames and the extended frames can be alternated.
According to an embodiment the secured storage and execution means of the said security applications are amalgamated into a releasable miniature microcircuit. Therefore, the management and the availability of the said security applications storage
and execution means are made independent in relation to the device's maintenance.
Accordingly, the present invention relates to a conditional access device intended to be used in connection with an electronic host equipment, formed by a pointing peripheral including at least one microcircuit card coupler, characterized in that it further includes means for acquiring personal informative data specific to a user, representative of a confidential code of the user and in that said personal informative data are locally compared with informative data stored in the microcircuit card (5) in order to provide an authorisation informative datum of the user or not, transmitted to the host electronic equipment without having said personal informative data pass through the host electronic equipment.
The present invention also relates to a method for providing security to gain access to a host equipment using and implementing a conditional access device, characterized in that at least certain functions of said host equipment are only accessible after the user has entered a personal informative datum complying with a stored informative datum in a microcircuit card an checking of the compliance between the personal informative datum and the informative datum stored in the microcircuit card is performed in a peripheral including a microcircuit card reader connected to the host equipment without having the personal informative datum pass through the host equipment.
Presentation of the figures in appendix.
The invention will be better understood by reading the following detailed summary, giving as a non-restrictive example and illustrated by the figures in appendix
- figure 1 represents a bottom view, ( on
the ball side) of the conditional access device
according to a possible implementation of the invention
in its mouse version.;
figures 2a and 2b, in perspective view represent two embodiments of possible implementations for figure 1's mouse.
- figure 2c represents the view of a screen
to operate an embodiment of the implementation.
figure 3 is a schematic representation illustrating an advantageous configuration inside the mouse casing of figure 1.
- figure 4 is a top view of the ball mouse
model of the conditional access device according to
another possible embodiment of the implementation.
figure 5 is a perspective view
illustrating a possible implementation mode of figure 4 1s embodiment.
- figure 7 is a block diagram illustrating
the conditional access device with biometrical control.
- figure 8 is a top view of the conditional
access device with biometrical control.
- figure 9 is a schematic representation, in
perspective, without the microcomputer keyboard but with
a touch pointing device according to the invention.
- figure 10 is a flowchart illustrating a
possible interrogation sequence by applicative software
of a security application borne by a collector card inserted in the conditional access device according to a possible implementation mode of the invention.
figures 11 and 12 are flowcharts
illustrating the installation and the uninstallation of a security application on a collector card inserted in the conditional access device according to a possible implementation mode of the invention.
- figures 13 to 18 illustrate the structure of communication frames used with the conditional access device according to a possible implementation mode according to the invention
Detailed Summary of Different Examples of the Non- Restrictive Implementations of the Invention.
The device according to the invention will be described in the ball mouse model, the same approach applies to the other pointing devices. Figure 1 shows a device according to the invention derived from a optomechanical mouse whose ball (3) is maintained in its casing by a cover. (2) . A keyboard (6) is placed in a specified opening on the bottom of the main part of the mouse's casing. The depth of this opening is chosen in relation to the thickness of the keyboard as well as the thickness of the sliding spots (4) . Thus the whole device does not touch the supporting surface leading the ball (3).
The device represented in figure 1 comprises a microcircuit card coupler. In figure 1 a microcircuit card (5) for example in accordance with the ISO 7816 norm or even a contactless card is inserted into the device by the lateral slot so- designed. The device may comprise the means of inserting two types of
microcircuit cards, to identify the type of card and verify its correct insertion.
Thus the keyboard (6) may be placed on the
mouse's upper cover, protected or not by a jointed
mask.The device may carry a liquid crystal display (7)
to control transactions and operations and it is
connected to the host equipment by a link cord with a
plug on the ad- hoc port of the host equipment. The
device's power supply may be implemented by a self-
contained method or by the host equipment.The electrical
power supply may be set up using either an independant
peripheral based power supply or, as in most cases, by
the voltage available from port (RS232, USB, GEOPORT).
which is linked to the peripheral device or a second
port (keyboard, ) .
The device may also incorporate a permanently power- supplied clock which is necessary for the dating of financial transactions.lt may also comprise secured means authorized to set up an electronic wallet application. Thus it can receive and keep money or an electronic value. The aforesaid means may be implemented either with a secured version of a microcontroller and incorporating an electronic wallet application or in using a second microcircuit card coupler having an electronic wallet application. This second electronic wallet card is in preference a miniature contact card (5a) and is placed inside the device, (for example GSM format 15 x 25mm) . This facilitates its replacement in the case of validity expiration or failure. This built- in financial function corresponds to an electronic wallet.
An embodiment represented in figure 2c consists in replacing the personal data key- in keyboard by an equivalent computing solution.This equivalent solution is constituted by a program giving a host equipment screen (5O) display of a graphical
representation of the virtual keyboard(54), made up of virtual keys (51,52). The virtual keys (51) on this keyboard are positioned in a random way, different in each new activation of this program.The personal data key- in is carried out with the aid of the conditional access device's pointing functions according to the invention. Signal processing operation and index position validation(53) on the virtual keyboard is done exclusively on the peripheral device so as to prevent the data transmission of the validated position to the host equipment.
Several ergonomic configurations are possible on the mouse's casing (1).
As illustrated in figures 2a and 2b, two different configurations may be envisaged.
In the two cases, the slot (Ib) is placed on the side of the casing (1) at the opposite end to the mouse's function keys, these keys are referenced 8 on the figures 2a and 2a. The configuration illustrated in figure 2b presents an advantage because it simplifies the manufacturing tools. The slot (Ib) is situated in a groove (Ic) usually found on the mouse's peripheral in the extension of the space between the function keys (8) and the main part of the mouse's casing (1)
Figure 3 illustrates an advantageous configuration inside the casing (1) .Traditionally in a ball mouse's casing, there are two encoder axises(41, 42) and a thrust roller (43) in permanent contact with the ball (3) . These encoder axises (41, 42) track the ball's movements.The thrust roller's holding spring (43) in contact with the ball (3) is a spiral sprng which reduces the space required for the pressure mechanism inside and so liberates a volume of space for the chip card's insertion zone.
In another embodiment of the ball mouse model according to the invention, illustrated by figures
4 to 6, the keyboard (6) is placed on the mouse's top surface, meaning on the surface opposite to the bottom(lb). A jointed cover (9) protects the keyboard (6) when the chip card's coupler function is not used. The cover (9) is not represented in figure 4. It is shaped in a way that its top surface is extended exactly in the same shape as the casing in its closed position. Thus the peripheral device is like a traditional mouse
This cover is hinged to the casing (I) by an arm (10) which .pivots on the casing (1) . As the aforementioned arm (10) itself pivots in relation to the casing around an axis which is parallel to the pivoting axis of the cover (9) attached to the aforementioned arm (10).
A stop (lOa) is provided on the casing (1) to limit the clearance of the cover (9). Therefore there is a joint which enables the operator to completely clear the cover from the keyboard zone (6), so as to liberate its access . Yet the peripheral device still maintains its compact aspect.
In the case of a financial transaction application on an on- line network or a local network, the device's operator can key- in the following different operations as follows.
- Correction, erase last keyed- in number.
- Journal, reading of the list of the last
- Balance of the account, reading of the
remaing sum or balance
value in the electronic wallet card,
Select, currency selection for an intersector electronic
- Cancel, abort current transaction,
Local, stop communication with host equipment,
- Lock, chip card,
- EW/Card, electronic wallet selection (EW)
or inserted card
- Transfer, initiate transfer operation,
The device attached to the host equipment comprises suitable software means and if connected to an information network enables secured payments on line of goods and services by credit cards and electronic wallet cards but also secured money transfer between two distant financial bodies.
For example, two people situated in different places, each having a personal computer with a modem according to the invention may execute the following secured transactions :
- transfer an amount of money from the first
person's credit card to the electronic wallet card of
the other person ;
- select the currency which is the object of
- transfer money from an electronic wallet
card to another;
thus, both persons may use on- line
financial services for electronic wallets offered by their banks.
- transfer money from a current account to
an electronic wallet card and vice versa;
- change money into a different currency and
vice versa ;
Each time the cardholder's identity is demanded, his personal code and his identifying signature are keyed- in, the device thus creates a protective shield against computer fraud.
Furthermore the device comprising electronic wallet means allows the following operations :
- checking the remaining value or balance;
- reading the transaction journal;
- locking its electronic wallet.
A chip card (5) may comprise several financial applications, for example a credit card and at least one electronic wallet.Each basic device according to the invention has means of carrying transactions between the resident financial applications on the same chip card, because the security conditions are implicitely ensured by the card itself.
The device incorporating, either an internal electronic wallet (EW) or two identical couplers, one of which comprises an electronic wallet card having an intermediary role, may be used in the local working mode in card to card transactions, the cards being successively inserted in the available connector :
- debit a credit card and load an electronic
- transfer money from one electronic wallet
to another ;
- keep the money in the electronic wallet ;
- cancel the last trasaction.
It should be noted that the means setting in operation the cardholder's identification, (personal code key- in or signature) , plus the chip card coupler means and the pointing means (selection, validation, modification), define the basic configuration for each type of device described herein, in combining different means of serial communication with host equipment, keyboards, displays, power- supply, electronic wallets, we obtain device families according to the invention.
A peripheral device of the type just described adds chip card terminal functions used in
financial access control, identification, and toll applications to a personal computer or an interactive television.
It allows the payment of goods and services on line networks with credit cards or electronic wallets as well as home banking functions.In the electronic wallet (EW) version, the device may be used as a monetary reserve for payment on line networks or local networks .
The device enables the use of personal payments means (credit cards, electronic wallet), or anonymous means (electronic wallet, EW ) .In this way, the device handles electronic money as a direct replacement to phyisical and brings down the physical barriers between operators.
The device may also be used for business network administration; securing access and protecting software.
The device replaces the traditional mouse or any other serial pointing device and it comes with a software pilot, suited to each type of host equipment. Generally it is a remote control unit designed for Imultimedia terminals and is recognized as a pointing device (personal computers, interactive multimedia televisions.lt can also incorporate additional applications such as a financial calculator, clip board, diary, etc.
Designed in the form of a clip board with a stylus and a double chip card interface which may as an option, record written files compressed into the memory, the device can be favourably used by medical professions
Figure 7 represents a configuration setting in operation a biometrical control; a control using, for example, a fingerprint scanner or an eye image scanner comprising an image sensor (15) which is, for instance, a fingerprint scanner or an eye image scanner connected
to a peripheral microcontroller (13) seen in figure 7 . The microcontroller (13) is also linked to specific pointing means (11) , a display screen (7) as well as a keyboard (6). Thus it communicates with an external chip card (5) through the interface (14) , and with the internal chip card through interface (14) and on the other hand by a microcomputer (19) , with which the aforementioned peripheral device is associated.
In another embodiment, the microcontroller(12) is conveniently linked to a synthesis and vocal recognition processor (16), which is , for example,linked to a microphone MIC and a loudspeaker HP.,placed in the casing.(1). An operating embodiment consists in verifying the user's vocal signature during the reading of the data displayed on the peripheral screen or on the host equipment. This implementation mode enables vocal recognition and a comparison with the digital vocal signature recorded on the microcircuit card. (5) , coming from an extremely reduced number of words and using algorithms and simplified integrated circuits. It is a low cost method which only slightly reduces the safety of the comparison.
The processing means which constitute the unit (12) take the shape of the biometrical object read by the sensor (15) and / or the vocal recognition unit(16) enabling processing by a card(5). This receives and compares the biometrical object with the reference presented in the memory. In this embodiment the comparison between the reference and the biometrical object read by the sensor (15) or the unit (16) can be implemented by the microcontroller (12).
It should be noted that the microcontroller's processing means (12) , may be an optimized mathematical co- processor for signal processing and/ or crythographical calculations Thus all
or part of the unit (16) can be conveniently integrated into the same chip or module.
The biometrical object, such as an image read by a sensor (15) or the vocal recognition implemented by the unit (16) replaces the user's identification code which does not need to be keyed- in on the keyboard (6 ) .
Figure 8 represents a configuration whose sensor (15) is situated on the lateral edge of the casing (1) . The edge takes the form of a guide (17) intended to receive the user's finger ; his thumb for example. The EN1546 European norm project presents the working and the use of electronic wallet cards in detail . Also the EMV European norm describes in a detailed way the standard procedures of payment by microcircuit cards as well as the features of such cards.
The peripheral device may comprise a wireless communications medium to increase mobility in relation to the host equipment . Radio or infrared solutions can be used to counter" environmental constraints and those of target host systems
The peripheral device can be integrated into the microcomputer itself. An embodiment of this type is illustrated in figure 9. In this embodiment a microcomputer incorporates a tactile pointing device (20). A keyboard (6) which is independant in relation to the computer's C keyboard, is integrated into the S support on which the C keyboard and the tactile pointing device (20) are installed.
Advantageously ,the device's tactile surface (20) is used to implement the personal data key- in keyboard (6) because a representation of the aforementioned keyboard is superposed on the aforesaid tactile surface. This representation may be constantly visible In another embodiment, it may be visible only during the cardholder's identification operation by
retro- lighting implemented by an electroluminescent film, for instance.
Another of the device's embodiment's according to the invention, operates vocal synthesis means and a suitable dictionary. This dictionary may be downloaded and/ or modified by a secured procedure using an authorized server. This server may be the conditional access device's manufacturer's model, for instance. The device can with vocal recognition means, learn the minimum number of commands required to carry out transactions; such as accept, cancel, continue. For example to check the price displayed on the computer screen ,for instance $198. 25, the procedure consists in transmitting the data relative to the price to the peripheral device, which transforms this information by synthesis and vocal reproduction means to emit the sounds ,"one", "nine", "eight", "point", "two", "five", "dollars".
Then the device validates the price for the transaction, for example the command "accept" pronounced orally by the holder of the inserted microcircuit card. The vocal commands may be recorded.
We will now turn to figure 10 and following for other aspects of the invention .
The peripheral device comprises a security application, indicated by the initials 'SAM' in the following of the text. By the term 'security application' or SAM we mean object software comprising an executable code and all the specific resources necessary for its working, residing and executing in the secured microcircuit which is also supplied with a secured operating system. A typical example of SAM is the electronic wallet available on the microcircuit card. A security application incorporated in the peripheral device is provided for at least one piece of
applicative software in the host electronic equipment with which the aforesaid peripheral device communicates.
Both the applicative and its security application recognize the same secret information in the form of one or several of the keys; it sets into operation the same cryptographical algorithm, enabling the verification this key.
A security distribution application is thus provided to replace the applicative software's ordinary key against fraud. This security application is conveniently but not restrictively, carried by a chip card. ; subsequently indicated by the term ' SAMC collector card'. This card is for example, loaded from a second card named distribution card or SAMD, which is for instance, supplied with applicative software needing protection against fraud . In this context, figure 10 is a flowchart of a basic inquiry sequence of a SAM security application residing in the peripheral device's collector card by an applicative executing locally or accessing to host equipment communicating with the peripheral device. SAM's role is a protection key for this applicative.The first stage of the SAM test (stage 101) consists in generating a random code(RNDC) which is subsequently memorized. In a second stage (102), code (RNDC) is crypted according to the balanced key procedure which is well known in the art. This encrypted code, is recognized by the applicative and its SAM. The result of stage (102) is another code representing test (CLG) which is transmitted to SAM.In stage (103) the applicative checks if it can transmit test (CLG) to the device's pilot. In. stage (104) the test message (CLG) is transferred to the pilot which transmits it, according to an extended protocol in relation to the communication protocol specific to the pointing means of the aforementioned peripheral device to its destination SAM.
In stage (105) the applicative waits for a predefined lapse of time, for SAM's response. SAM uses an algorithm to decrypt test (CLG).
If SAM is authentic the decryting key is the same and refinds a clear initial random code.Its response (RPL) is transmitted to the device's pilot for reading in stage (106) by the applicative.The following stage (107) consists in comparing the initial code (RNDC) with the response (RPL) . If they are identical there is not a fraud. Such a SAM sequence test is incorporated in the protected applicative. If figure 10 sequence has only one response message in the case of success (108) , the error messages (109) are more numerous in practice and reflect the possible failure situations in all their stages.
The simplified sequence of a security application installation or SAM in the procedure according to the invention is presented in figure 11 .
A SAMD security application distribution card can be used for several installations of the same security application. The aforementioned card comprises, for each security application a license counter (LCNT) initialised to the number of installations allowed by the said application. The applicative's installation program requires in stage 110 a SAMD distribution card in the peripheral device's coupler. The procedure is interrupted :
- If test(111) does not recognize the SAMD
distribution card or the counter (LCNT) of the number of
licences to be installed, is null.
- If test (112) does not read enough memory
in the SAM collector card or if the card cannot take the
SAM which is to be installed.
- If test (114) does not validate the copy .
- If the conditions of (111) and (112) are met, the 113 stage transfers SAM from the SAMD distribution card to the collector card SAMC.
The peripheral device's coupler's microcontroller triggers the transfer which subsequently is carried out between the two cards in a standard secured data transfer process.
During this transfer, the microcontroller acts only as a link channel between both the SAMC and SAMD' cards. The SAMC collector card's operating system brings the SAM to its executable form Then the SAMC card carries out the (114) test which includes the so- called transfer validation and afterwards the correct working verification of the SAM. This verification consists in simulating the interrogation of the SAM and checking its behaviour . The SAMC collector card erases an invalid SAM from its memory . The installation of a SAM is equivalent to a value transfer according to a similar transact ional mechanism to the one used in the electronic wallet system This transactional mechanism ensures the (115) stage and the license counter LCNT is diminished by a sole unit.if the SAM is validated by the secured means of SAMC storage management and execution.
The simplified flowchart of the uninstallement of the SAM application in the process according to the invention is presented by the figure 12
In stage (116) the applicative's uninstallement program protected by the SAM requires the insertion of a SAMD distribution card or the equivalent, in the peripheral device's coupler.
Test (117) checks if the SAM about to be uninstalled will accept the inserted card in the aforementioned coupler. If the SAMD card is the source card , the SAM code is still present and stage (119) increases the license counter by a unit (LCNT)
If the SAMD card is not the source card, the SAM code is transferred to the SAMC collector card in stage (121) on condition (120) that there is sufficient memory, in similar conditions to stage (113) of the installation process described herein - above. Still in stage (121) the SAMD card's operating system creates a license counter (LCNT) initialized to zero. In the case of a SAM code transfer, in stage (122) , the SAMD card checks the copy's validity, as in stage (114) of the SAM installation flowchart . By the same transactional mechanism as the one found in the SAM installation, the disassembly operation ensures that the SAMD card comprises a valid SAM' and a license counter (LCNT) increased by a unit only in the " success" mode. It also ensures that the SAMC erases the SAM in question from its memory in stage (123) . The process thus allows all SAMD cards having received a security application by an uninstallement process, to be the equivalent to a source distribution card A security application is transferred between two remote.cards communicating with each other by interposed means ensuring the transport and integrity of their messages, via communications networks . Thus a SAM transfer procedure seen as a floating software license of one piece of host equipment to another, using communications networks is similar to the SAM uninstallement process described herein - above .
In this case, the distribution card is replaced by the destination collector card .
In preference, the communication protocol used for the security applications' management and execution, employs the same serial communication channel to transport pointing information and security messages Thus the pointing and microcircuit card terminal functions are available quasi - simultaneously and independantly to one another . In the framework of the said communications protocol, the information and
commands are transmitted in a frame form incorporating a whole made up of fields each constituted by a coded sequence carrying a predeterminated number of bits, as illustrated in figure 13 Therefore, a frame necessarily comprises an identification field (FID) and at least one of the following fields :
- a pointing information field ;
- an information field relative to security
The identification field (FID) initializes the reception means for the analysis of its contents.For peripheral pointing device's and a given functioning mode their frames have a fixed length. In such a frame, the most significant bit is reserved for the identification by its start of frame. The protocol set into operation according to the inventon, uses the same method to remain compatible with traditional pointing devices and always places the pointing information at the start of the extended frame . Therefore it is not restrictive to consider the pointing frame as a part of the extended frame's identification field (FID) as illustrated in figure 6 . For example, the presence of an information field relative to a security application can be indicated according to the same principle by a particular value of a group of bits from the frame's first byte Thus the information field relative to a security operation comprises all or one part of the following fields in the quotation order, from a position determined by the aforesaid particular value of an identification field's (FID) group of bits :
- control field (OPC)
field giving the security application's message length (DLEN) ,
field comprising all or a part of the security application message proper (CLG) or (RPL) ,
control field of the aforementioned message's integrity (CRC)
The extended frames have a variable length according to the control field (OPC) . If the frame comprises a (CLG) message,intended for a security application or a ( RPL) message meant for an applicative, the (OPC) field is followed by a (DLEN) field giving the length of the said (CLG) or (RPL) message . The length of the (DLEN) field is a function of the maximal length admitted for the (CLG) and (RPL) messages . The device's control and processing means according to the invention ignore the aforesaid (CLG) and (RPL) messages' significance . The optional field (CRC) enables a possible control of (CLG) and (RPL) messages' integrity
An extended frame is completely defined by its control field (OPC) which comprises at least the following information (figure 14) :
the (OPC. C) code of the operation concerning one or several security application,
- the address of the security application
-concerned by (OPC .A ) frame
- the information field's number of bytes
relative to a security application transmitted by
extended frame, this number (OPC .S) being at least
equal to the field length (OPC) .
,The (OPC.A) address also takes into account the coupler with which we access to the security application . Long messages are transmitted by segments of a" constant length (OPC.S) with the exception of the last segment, divided into several shorter extended frames. This method ensures the uniformity of the pointing information's acquisition frequency .
Figures 15 and 18 illustrate a particular implementation of the extended frame's structure
described herein - above with the aid of figures 13 and 14 .
Figure 15 presents the frame emitted by a conventional mouse . This frame comprises 3 bytes whose most significant bits are not used .These bits are used to indicate the extended frames
From this frame, figure 16 illustrates the structure of an extended frame whose identification field (FID) retakes the pointing frame and positions the most significant bit of its first byte at 1 . Thus the device's pilot detects the extended frame and analyses the fourth byte which corresponds to the control field (OPC) of th security information. The fifth byte (DLEN = m) indicates the length in bytes of a SAM application response alone or in association with an other binary field available in the precedent bytes, for example, the most significant bits of the two and three bytes. The control field (CRC) comprises (n) bytes .
Figures 17 and 18 illustrate the structure of,respectively,the first and the fifth frame of the extended frames which transmits the security application's response in several consecutive segments for the OPC.S =8 parameter, an, (RPL) 32 bytes response and a ( CRC ) on 16 bits . The (OPC .8 )field indicates to the device's driver the information field's number of bytes relative to a security application added to the pointing frame, with the exception of the last frame . Therefore, the pointing frames and the extended frames can be alternated
The invention is described in the preceeding text as a non- restrictive example . It should be understood that a man of the profession could implement several embodiments within the framework of the invention .
1 A conditional access device intended to be used in connection with
an electronic host equipment, formed by a pointing peripheral
including at least one microcircuit card coupler, characterized in
that it further includes means for acquiring personal informative
data specific to a user, representative of a confidential code of the
user and in that said personal informative data are locally
compared with informative data stored in the microcircuit card (5)
in order to provide an authorisation informative datum of the user
or not, transmitted to the host electronic equipment without
having said personal informative data pass through the host
2 The conditional access device as claimed in claim 1, wherein the
means for acquiring personal informative data specific to a user
consist of a keyboard for entering an alphanumeric identification
code or a tablet provided with a sensitive area for entering
handwritten personal informative datum.
3 The conditional access device as claimed in claim 1 or 2, wherein
the means for entering personal informative data consist of a
sensor for entering a biometric identification signal, such as a
fingerprint image sensor and/or an eye interior image sensor
and/or a sound sensor associated with a voice recognition means.
4 The conditional access device as claimed in any of the preceding
claims, wherein it includes a keyboard (6) for entering personal
informative data and/or a display means for monitoring the
5 The conditional access device as claimed in any of the preceding
claims, wherein the means for entering personal informative data
consist of means able to cause display of a virtual keyboard on the
screen of the host equipment, including graphical representations,
the layout of which changes randomly at each activation of said
means, wherein acquisition of the personal informative data is
carried out by pointing at graphical representations and validating
them upon positioning the pointer on the sought-after graphical
representation, the processing of pointing at the informative data
and their validation on the virtual screen is exclusively performed
in the conditional access device.
6 The conditional access device as claimed in any of the preceding
claims, wherein the means for acquiring personal informative data
consist of a module for acquiring and digitising the voice of the
7 The conditional access device as claimed in any of the preceding
claims, wherein it includes voice synthesis and sound reproduction
means for monitoring the transaction.
8 The conditional access device as claimed in any of the preceding
claims, wherein the means of acquiring personal informative data
consists of a touch area (11) to be pointed at, including a representation of the keyboard superimposed on its touch surface.
9 The conditional access device as claimed in any of the preceding
claims, wherein it includes a permanently operating clock and
means for transmitting to the peripheral equipment dated digital
data including a data sequence relating to the authorisation
computed from data stored in the microcircuit card (5) and from
data entered by the user and a data sequence delivered by the
10 The conditional access device as claimed in any of the preceding
claims, wherein it includes means allowing it to execute in
cooperation with a host equipment over on-line networks, all or
part of the following security transactions involving an electronic
purse card or bank card: a) payment, b) refund, c) cancellation of
the operation, d) currency selection, and/or all or part of the
following security transactions involving the electronic purse card
which is inserted therein: e) loading of an electronic purse card
from a bank account, f) transfer of value from an electronic purse
card to a bank card, g) transfer of value from an electronic purse
card to another electronic purse card, h) debit from an electronic
purse card and credit to a bank card.
11 The conditional access device as claimed in any of the preceding
claims, wherein it includes means allowing it to execute
independently and/or cooperatively with a host equipment, all or
part of the following operations involving the electronic purse card which is inserted therein: a) checking the current value or balance, b) reading out the list of recent transactions or the log, c) locking the electronic purse card, d) changing the identification code.
12 The conditional access device as claimed in any of the preceding
claims, wherein it includes means for performing transactions
between resident financial applications on the same microcircuit
13 The conditional access device as claimed in any of the preceding
claims, wherein it includes means comprising an electronic purse
application and means allowing it to execute all or part of the
following operations between cards successively inserted into the
same connector: a) transfer of value from an electronic purse card
to another electronic purse card, b) transfer of value from an
electronic purse card to the apparatus itself, c) debit from or credit
to an electronic purse card and credit to or debit from a bank card
of the same value, d) cancellation of the operation.
14 The conditional access device as claimed in any of the preceding
claims, wherein said means comprising the electronic purse
application are comprised within a removable microcircuit card (5).
15 The conditional access device as claimed in any of the preceding
claims, wherein it includes in addition a stylus and/or touch
digitisation active surface and a display device, wherein the active
surface and display device are superimposed.
16 The method for providing security to gain access to a host
equipment using and implementing a conditional access device as
claimed in any one of the preceding claims, characterized in that at
least certain functions of said host equipment are only accessible
after the user has entered a personal informative datum complying
with a stored informative datum in a microcircuit card an checking
of the compliance between the personal informative datum and the
informative datum stored in the microcircuit card is performed in a
peripheral including a microcircuit card reader connected to the
host equipment without having the personal informative datum
pass through the host equipment.
17 The method for secure computer transactions including a step for
comparing a personal informative datum of the user, with data
contained in a microcircuit card, using and implementing a
conditional access device as claimed in least one of claims 1 to 15,
wherein the checking step is performed in said conditional access
device forming a barrier to computer fraud.
18 The method for managing and executing securing applications
within interactive electronic equipment provided with a peripheral
apparatus for controlling visual objects of a graphical user
interface according to a communications protocol, wherein the
communications protocol includes an extension for security
applications and in that the method includes a local processing
step for identifying the user by a personal code exclusively entered
with the means of said peripheral into the peripheral, and security applications utilising personal data recorded in a microcircuit card introduced into a coupler implanted in the peripheral, without having this code pass through the said interactive electronic equipment.
19 The method as claimed in any of the claims 16 to 18, wherein
information and controls are transmitted within the framework of
said communications protocol as frames comprising a set of fields
each formed of a coded sequence including a predetermined
number of bits, wherein each frame comprises an identification
field (FID) and at least one of the following fields:
a field for pointing information,
a field for information relating to the secure means.
20 The method as claimed in claim 19, wherein the information field
relating to the secured means includes all of part of the following
fields in the cited order:
a check field (OPC),
a field giving the length of the security application message
a field which comprises all or part of the strictly speaking
security application message (CLG) or (RPL),
a field for checking the integrity of said message (CRC).
21 The method as claimed in claim 20, wherein the check field (OPC)
comprises at least the following informative data:
the code (OPC.C) of the operation relating to one or more
the address of the security application affected by the frame
the number of bytes (OPC.S) of the informative data field
relating to a security application transmitted with an
extended frame, wherein this number (OPC.S) is at least
equal to the length of the field (OPC).
22 The method as claimed in claims 16 to 21, wherein the application
for distributing security applications (30) includes a licence
counter (LCNT) for checking multiple transfers of the same security
application within the limit of a predefined number of installations
23 The method as claimed in claims 18 to 22 wherein the operation
for transferring a security application between the local or remote
secure means includes all or part of the following steps:
identification of the initiator of the transfer,
reciprocal authentication of the participating secure means,
secure copy of the application code on the destination
validation of the copy,
invalidation of the security application in the source means.
24 The method as claimed in claim 23 wherein the step for identifying
the initiator of the transfer consists in that a security application
installed on one of said secured means for storing, managing and executing security applications (27) or the application for distributing the security applications (30), identifies the initiator of the transfer by a personal code exclusively entered with the means of said peripheral and without having this code pass through said interactive electronic equipment.
25 The method as claimed in claim 24, wherein the step for
invalidating the security application in the source means consists
in deleting its code and releasing its resources except for the
application for distributing the security applications (30), the
transfer counter (LCNT) of which alone is decremented by one unit.
26 The method as claimed in any of the claims 16 to 25, wherein the
driver of the peripheral device provides the information for pointing
to application software and at the same time ensures the
transmission of messages to the same or to another application
software simultaneously active and its security application.
27 The method for providing security to access to a host equipment as
claimed in claim 16, wherein the host equipment transmits to the
conditional access device informative data relating to the current
transaction, in that these informative data are translated by voice
synthesiser and that the validation of the transaction is performed
by the oral pronunciation of a word or a predetermined phrase by
the owner of the microcircuit card introduced into the device.
28 A conditional access device substantially as herein described with
reference to and as illustrated in the accompanying drawings.
29 The method for providing security to gain access to a host
equipment using and implementing a conditional access device
substantially as herein described with reference to and as
illustrated in the accompanying drawings.
|Indian Patent Application Number||1865/DEL/1996|
|PG Journal Number||29/2008|
|Date of Filing||21-Aug-1996|
|Name of Patentee||CORNEL SIRBU|
|Applicant Address||30, RUE DE 1'ECOSSE, 78280 GUYANCOURT, FRANCE|
|PCT International Classification Number||G06F 1/00|
|PCT International Application Number||N/A|
|PCT International Filing date|