US20030112182A1 - Method and apparatus for controlling access to mobile devices - Google Patents
Method and apparatus for controlling access to mobile devices Download PDFInfo
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- US20030112182A1 US20030112182A1 US10/028,472 US2847201A US2003112182A1 US 20030112182 A1 US20030112182 A1 US 20030112182A1 US 2847201 A US2847201 A US 2847201A US 2003112182 A1 US2003112182 A1 US 2003112182A1
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- Prior art keywords
- mobile device
- zone
- access
- security
- security zone
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/40—Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72457—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to geographic location
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2111—Location-sensitive, e.g. geographical location, GPS
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2149—Restricted operating environment
Definitions
- This invention relates to access control. In particular is relates to controlling access to mobile devices.
- Mobile devices such as notebook computers, Personal Digital Assistants (PDAs) and cellular telephones are typically used in different locations depending on the movement of a user.
- PDAs Personal Digital Assistants
- it must be appropriately configured in order to prevent unauthorized use thereof.
- security concerns related to unauthorized use of a mobile device would be reduced, whereas these concerns would be higher when the user is in a public place such as an airport or a hotel.
- FIG. 1 shows a block diagram of a mobile device in accordance with the invention
- FIG. 2 shows a block diagram of the wireless communications module of the mobile device of FIG. 1 in greater detail
- FIG. 3 shows a flowchart of operations performed in order to select an appropriate access policy in accordance with one embodiment of the invention.
- FIGS. 4 and 5 show aspects of operations in FIG. 3 in greater detail.
- access control parameters which control access to a mobile device are changed automatically based on the location of the mobile device.
- a user of the mobile device pre-configures a set of security policies with predetermined values for the access control parameters based on knowledge of anticipated usage scenarios.
- the mobile device then uses an appropriate security policy based on the physical location of the device.
- Each security policy is associated with a zone which may be user defined. Examples of user defined zones may include a home zone, a work zone, an airport, a hotel zone, etc.
- Each zone defines the physical region within which the mobile device must be located before the security policy associated with the zone becomes operative.
- the position of the mobile device is constantly updated and when the device crosses from one security zone to another, the security policy for that device is appropriately updated without any user intervention.
- FIG. 1 of the drawings shows one embodiment of a mobile device 10 in accordance with the invention.
- the device 10 includes a processor 12 that processes data signals.
- Processor 12 may be a Complex Instruction Set Computer (CISC) microprocessor, a Reduced Instruction Set Computing (RISC) microprocessor, a Very Long Instruction Word (VLIW) microprocessor, a processor implementing a combination of instructions sets, or other processor device.
- CISC Complex Instruction Set Computer
- RISC Reduced Instruction Set Computing
- VLIW Very Long Instruction Word
- processor 12 is a processor in the Pentium® family of processors including the Pentium® 4 family and mobile Pentium® processors available from Intel Corporation of Santa Clara, Calif. Alternatively, other processors may be used.
- FIG. 1 shows an example of a mobile device 10 employing a single processor. However, one of ordinary skill in the art will appreciate that mobile device 10 may be implemented using multiple processors.
- Processor 12 is coupled to a processor bus 14 .
- Processor bus 14 transmits data signals between processor 12 and other components in mobile device 10 .
- Device 10 also includes a memory 16 .
- memory 16 is a Dynamic Random Access Memory (DRAM) device.
- DRAM Dynamic Random Access Memory
- SRAM Static Random Access Memory
- Memory 16 may store instructions or code represented by data signals that may be executed by processor 12 .
- a cache memory 12 . 1 resides within processor 12 and stores data signals that are also stored in memory 16 .
- Cache 12 . 1 speeds up memory accesses by processor 12 by taking advantage of its proximity to processor 12 .
- cache 12 . 1 resides external to processor 12 .
- Mobile device 10 further includes a bridge memory controller 18 coupled to processor bus 14 and memory 16 .
- Bridge/memory controller 18 directs data signals between processor 12 , memory 16 , and other components in device 10 and bridges the data signals between processor bus 14 , memory 16 , and a first input/output (I/O) bus 20 .
- I/O bus 20 may be a single bus or a combination of multiple buses.
- I/O bus 20 may be a Peripheral Component Interconnect adhering to a Specification Revision 2.1 bus developed by PCI Special Interest Group of Portland, Oreg.
- I/O bus 20 may be a Personal Computer Memory Card International Association (PCMCIA) bus developed by PCMCIA of San Jose, Calif.
- PCMCIA Personal Computer Memory Card International Association
- I/O bus 20 provides communication links between components in device 10 .
- a display device controller 22 is coupled to I/O bus 20 .
- Display device controller 22 allows coupling of a displayed device to device 10 and acts as an interface between the display device and device 10 .
- display device controller 22 is a Monochrome Display Adapter (MDA) card.
- MDA Monochrome Display Adapter
- display device controller 22 may be a Color Graphics Adapter (CGA) card, and Enhanced Graphics Adapter (EGA) card, and Extended Graphics Array (XGA) card or other display device controller.
- CGA Color Graphics Adapter
- EGA Enhanced Graphics Adapter
- XGA Extended Graphics Array
- the display device receives data signals from processor 12 through display device controller 22 and displays information and data signals to a user of device 10 .
- Mobile device 10 further includes a wireless communications module 24 which is coupled to I/O bus 20 .
- a wireless communications module 24 includes a position sensor 24 . 1 .
- the position sensor 24 . 1 may be any commercially available position sensor and in one embodiment it may be a GPS sensor.
- the module 24 further includes a digital map 24 . 2 which is an area coverage map indicating which communications networks are operative at a global position of mobile device 10 .
- the module 24 further includes an intelligent roaming controller 24 . 3 which provides the functionality of selecting one of radio interfaces 24 . 4 to connect mobile device 10 to a selected operative communications network as will be described in greater detail below.
- the module 24 includes a baseband logic module 24 . 5 .
- the detailed components within the baseband logic module 24 . 5 have not been shown. However, one skilled in the art will understand that it will necessarily include components such as a digital signal processor, embedded controller support blocks such as volatile and nonvolatile memory, clocks, interface logic and any miscellaneous hardware acceleration blocks required by the radio interfaces 24 . 4 .
- the baseband logic module 24 . 5 is coupled to the I/O bus 20 .
- the mobile device 10 may be a mobile device such as a notebook computer, Portable Digital Assistant (PDA), a mobile telephone, etc.
- the mobile device 10 may be used to perform operations shown in FIG. 3 of the drawings.
- the mobile device 10 determines its location relative to a locally defined coordinate system or a global coordinate system.
- the particular operations performed in order to determine the location of mobile device 10 at block 30 is shown in FIG. 4 of the drawings.
- FIG. 4 at block 30 . 1 a determination is made as to whether a local position sensor exists. If such a position sensor exists then at block 30 . 2 a current global of mobile device 10 is obtained from said local sensor. Alternatively, if no local sensor exists then at block 30 .
- FIG. 3 of the drawings after the position/location of mobile device 10 has been determined at block 30 , at block 32 the security zone in which mobile device 10 is operating is determined.
- the particular operations involved in determining the security zone at block 32 are shown in greater detail in FIG. 5 of the drawings.
- a determination is made as to whether a network connection is available. If a network connection is available then at block 32 . 2 location information is sent to the network and based on this information a request is made for an update to the current security zone within which the mobile device 10 is operating. If no network coverage is available then at block 32 . 3 a digital network coverage map including security zones is accessed in order to determine the current security zone.
- Each security zone is determined in accordance with the current location or position of mobile device 10 .
- security zones are user-defined for locations such as a home location, a work location, an airport location, hotel location, etc.
- an access protocol which configures access control parameters to mobile device 10 which will determine, for example, whether a screen saver locks, and hence requires passwords to re-authenticate, a lead idle time before the screen saver locks, when to power down the apparatus, when to reset the apparatus and require re-authentication, when to use automatic roaming, when to make electronic payments and the type of external access request that may be accepted.
- the appropriate access policy for the current security zone is obtained and applied at block 36 .
- One advantage of the present invention is that it provides a security system that is capable of modifying the access policy of a mobile device based on the location of the device.
- a machine-readable medium includes any mechanism that provides (i.e. stores and/or transmits) information in a form readable by a machine (e.g. computer) for example, a machine-readable medium includes read-only memory (ROM); random access memory (RAM); magnetic disk storage media; optical storage media; flash memory device s; electrical, optical, acoustical or other form of propagated signals (e.g. carrier waves, infra red signals, digital signals, etc.); etc.
Abstract
Description
- This invention relates to access control. In particular is relates to controlling access to mobile devices.
- Mobile devices such as notebook computers, Personal Digital Assistants (PDAs) and cellular telephones are typically used in different locations depending on the movement of a user. Depending on where the mobile device is being used, it must be appropriately configured in order to prevent unauthorized use thereof. For example, when the user is on a corporate campus and is connected to a corporate intranet there is no need for data encryption for communications confined to the corporate intranet. Likewise, when the user is at home, security concerns related to unauthorized use of a mobile device would be reduced, whereas these concerns would be higher when the user is in a public place such as an airport or a hotel.
- FIG. 1 shows a block diagram of a mobile device in accordance with the invention;
- FIG. 2 shows a block diagram of the wireless communications module of the mobile device of FIG. 1 in greater detail;
- FIG. 3 shows a flowchart of operations performed in order to select an appropriate access policy in accordance with one embodiment of the invention; and
- FIGS. 4 and 5 show aspects of operations in FIG. 3 in greater detail.
- According to embodiments of the present invention access control parameters which control access to a mobile device are changed automatically based on the location of the mobile device. In some embodiments of the invention, a user of the mobile device pre-configures a set of security policies with predetermined values for the access control parameters based on knowledge of anticipated usage scenarios. The mobile device then uses an appropriate security policy based on the physical location of the device. Each security policy is associated with a zone which may be user defined. Examples of user defined zones may include a home zone, a work zone, an airport, a hotel zone, etc. Each zone defines the physical region within which the mobile device must be located before the security policy associated with the zone becomes operative. As a user moves around with the mobile device, the position of the mobile device is constantly updated and when the device crosses from one security zone to another, the security policy for that device is appropriately updated without any user intervention.
- FIG. 1 of the drawings shows one embodiment of a
mobile device 10 in accordance with the invention. Thedevice 10 includes aprocessor 12 that processes data signals.Processor 12 may be a Complex Instruction Set Computer (CISC) microprocessor, a Reduced Instruction Set Computing (RISC) microprocessor, a Very Long Instruction Word (VLIW) microprocessor, a processor implementing a combination of instructions sets, or other processor device. - In one embodiment,
processor 12 is a processor in the Pentium® family of processors including the Pentium® 4 family and mobile Pentium® processors available from Intel Corporation of Santa Clara, Calif. Alternatively, other processors may be used. FIG. 1 shows an example of amobile device 10 employing a single processor. However, one of ordinary skill in the art will appreciate thatmobile device 10 may be implemented using multiple processors. -
Processor 12 is coupled to aprocessor bus 14.Processor bus 14 transmits data signals betweenprocessor 12 and other components inmobile device 10.Device 10 also includes amemory 16. In one embodiment,memory 16 is a Dynamic Random Access Memory (DRAM) device. However, in other embodiments,memory 16 may be a Static Random Access Memory (SRAM) device, or other memory device. -
Memory 16 may store instructions or code represented by data signals that may be executed byprocessor 12. According to one embodiment of the invention, a cache memory 12.1 resides withinprocessor 12 and stores data signals that are also stored inmemory 16. Cache 12.1 speeds up memory accesses byprocessor 12 by taking advantage of its proximity toprocessor 12. In another embodiment, cache 12.1 resides external toprocessor 12. -
Mobile device 10 further includes abridge memory controller 18 coupled toprocessor bus 14 andmemory 16. Bridge/memory controller 18 directs data signals betweenprocessor 12,memory 16, and other components indevice 10 and bridges the data signals betweenprocessor bus 14,memory 16, and a first input/output (I/O)bus 20. In one embodiment, I/O bus 20 may be a single bus or a combination of multiple buses. - In a further embodiment, I/
O bus 20 may be a Peripheral Component Interconnect adhering to a Specification Revision 2.1 bus developed by PCI Special Interest Group of Portland, Oreg. In another embodiment, I/O bus 20 may be a Personal Computer Memory Card International Association (PCMCIA) bus developed by PCMCIA of San Jose, Calif. Alternatively, other buses may be used to implement I/O bus 20. I/O bus 20 provides communication links between components indevice 10. Adisplay device controller 22 is coupled to I/O bus 20.Display device controller 22 allows coupling of a displayed device todevice 10 and acts as an interface between the display device anddevice 10. In one embodiment,display device controller 22 is a Monochrome Display Adapter (MDA) card. In other embodiments,display device controller 22 may be a Color Graphics Adapter (CGA) card, and Enhanced Graphics Adapter (EGA) card, and Extended Graphics Array (XGA) card or other display device controller. The display device receives data signals fromprocessor 12 throughdisplay device controller 22 and displays information and data signals to a user ofdevice 10. -
Mobile device 10 further includes awireless communications module 24 which is coupled to I/O bus 20. Components of thewireless communications module 24 is shown in greater detail in FIG. 2 of the drawings. Referring to FIG. 2, it will be seen that thewireless communications module 24 includes a position sensor 24.1. The position sensor 24.1 may be any commercially available position sensor and in one embodiment it may be a GPS sensor. Themodule 24 further includes a digital map 24.2 which is an area coverage map indicating which communications networks are operative at a global position ofmobile device 10. Themodule 24 further includes an intelligent roaming controller 24.3 which provides the functionality of selecting one of radio interfaces 24.4 to connectmobile device 10 to a selected operative communications network as will be described in greater detail below. Finally, themodule 24 includes a baseband logic module 24.5. The detailed components within the baseband logic module 24.5 have not been shown. However, one skilled in the art will understand that it will necessarily include components such as a digital signal processor, embedded controller support blocks such as volatile and nonvolatile memory, clocks, interface logic and any miscellaneous hardware acceleration blocks required by the radio interfaces 24.4. The baseband logic module 24.5 is coupled to the I/O bus 20. - According to embodiments of the invention, the
mobile device 10 may be a mobile device such as a notebook computer, Portable Digital Assistant (PDA), a mobile telephone, etc. Themobile device 10 may be used to perform operations shown in FIG. 3 of the drawings. Referring to FIG. 3, atblock 30 themobile device 10 determines its location relative to a locally defined coordinate system or a global coordinate system. The particular operations performed in order to determine the location ofmobile device 10 atblock 30 is shown in FIG. 4 of the drawings. Referring to FIG. 4, at block 30.1 a determination is made as to whether a local position sensor exists. If such a position sensor exists then at block 30.2 a current global ofmobile device 10 is obtained from said local sensor. Alternatively, if no local sensor exists then at block 30.3, a determination is made as to whether a network connection is available. If a network connection is available then at block 30.4 a check is made to determine if the network connection is capable of determining the current position ofmobile device 10. According to one embodiment of the invention, this may be achieved by accessing a database of services provided by a network operator, for which services a current user ofmobile device 10 is subscribed. If the network connection is capable of determining a current position ofmobile device 10 then at block 30.5 said current position is obtained from the network. Obtaining the current position involves sending a triangulation signal to the network operator, who would then triangulate a signal, and receiving said triangulated signal. - Referring now to FIG. 3 of the drawings, after the position/location of
mobile device 10 has been determined atblock 30, atblock 32 the security zone in whichmobile device 10 is operating is determined. The particular operations involved in determining the security zone atblock 32 are shown in greater detail in FIG. 5 of the drawings. Referring to FIG. 5, at block 32.1 a determination is made as to whether a network connection is available. If a network connection is available then at block 32.2 location information is sent to the network and based on this information a request is made for an update to the current security zone within which themobile device 10 is operating. If no network coverage is available then at block 32.3 a digital network coverage map including security zones is accessed in order to determine the current security zone. Each security zone is determined in accordance with the current location or position ofmobile device 10. Typically, security zones are user-defined for locations such as a home location, a work location, an airport location, hotel location, etc. Associated with each security zone is an access protocol which configures access control parameters tomobile device 10 which will determine, for example, whether a screen saver locks, and hence requires passwords to re-authenticate, a lead idle time before the screen saver locks, when to power down the apparatus, when to reset the apparatus and require re-authentication, when to use automatic roaming, when to make electronic payments and the type of external access request that may be accepted. - Referring again to FIG. 3 of the drawings, at block34 the appropriate access policy for the current security zone is obtained and applied at
block 36. At block 38 a determination is made as to whether a system shut down request has been received. If a system shut down request has been received then the system shuts down, failing which operations starting atblock 30 are repeated. - One advantage of the present invention is that it provides a security system that is capable of modifying the access policy of a mobile device based on the location of the device.
- For the purposes of this specification, a machine-readable medium includes any mechanism that provides (i.e. stores and/or transmits) information in a form readable by a machine (e.g. computer) for example, a machine-readable medium includes read-only memory (ROM); random access memory (RAM); magnetic disk storage media; optical storage media; flash memory device s; electrical, optical, acoustical or other form of propagated signals (e.g. carrier waves, infra red signals, digital signals, etc.); etc.
- It will be apparent from this description the aspects of the present invention may be embodied, at least partly, in software. In other embodiments, hardware circuitry may be used in combination with software instructions to implement the present invention. Thus, the techniques are not limited to any specific combination of hardware circuitry and software.
- Although the present invention has been described with reference to specific exemplary embodiments, it will be evident that the various modification and changes can be made to these embodiments without departing from the broader spirit of the invention as set forth in the claims. Accordingly, the specification and drawings are to be regarded in an illustrative sense rather than in a restrictive sense.
Claims (29)
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US20030184474A1 (en) | 2003-10-02 |
US6577274B1 (en) | 2003-06-10 |
US6747598B2 (en) | 2004-06-08 |
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