Patent Application
20140187203
Mobile or wireless telephone units are used in both personal and business applications. Telephone systems generally have the capability to provide caller identification services (caller ID) for identifying a calling party, such as displaying a telephone number and/or name associated with the calling party account. The caller ID information may enable the called party to at least identify the telephone number and/or name that may be associated with a received call.
According to one aspect of the present disclosure a method and technique for authentication of caller identity is disclosed. The method includes: responsive to initiation of a telephone call by a caller from a first telephone unit to a second telephone unit, retrieving an identification object comprising identification information corresponding to the caller; encrypting the identification object using an encryption key stored on the first telephone unit; and transmitting, as part of the telephone call, the encrypted caller identification object to a telephone network destined for the second telephone unit.
For a more complete understanding of the present application, the objects and advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:
Embodiments of the present disclosure provide a method, system and computer program product for authentication of phone caller identity. For example, in some embodiments, the method and technique includes: responsive to initiation of a telephone call by a caller from a first telephone unit to a second telephone unit, retrieving an identification object comprising identification information corresponding to the caller; encrypting the identification object using an encryption key stored on the first telephone unit; and transmitting, as part of the telephone call, the encrypted caller identification object to a telephone network destined for the second telephone unit. Thus, in some embodiments of the present disclosure, a calling party encrypts an identification object having information corresponding to an identity of the calling party and transmits the encrypted identification information to the called party as part of the telephone call (e.g., inserted into the body of the session initiation protocol (SIP) invitation). The receiving or called party may decrypt the received identification object using a decryption key previously received from the calling party or received from a third party certificate authority (e.g., a telephone service provider). The decrypted result may then be evaluated to determine the authenticity of the identity of the calling party. For example, if the decrypted result is scrambled or illegible, the authentication logic on the called telephone unit may return an error or other notice of failure of caller identity authentication. The receiving or called party may then reject the call, if desired.
As will be appreciated by one skilled in the art, aspects of the present disclosure may be embodied as a system, method or computer program product. Accordingly, aspects of the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, micro-code, etc.) or an embodiment combining software and hardware aspects that may all generally be referred to herein as a “circuit,” “module” or “system.” Furthermore, aspects of the present disclosure may take the form of a computer program product embodied in one or more computer readable medium(s) having computer readable program code embodied thereon.
Any combination of one or more computer usable or computer readable medium(s) may be utilized. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C++ or the like and conventional procedural programming languages, such as the “C” programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet Service Provider).
Aspects of the present disclosure are described below with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable medium that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable medium produce an article of manufacture including instruction means which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide processes for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks.
With reference now to the Figures and in particular with reference to
In some embodiments, server 140 and server 150 connect to network 130 along with data store 160. Server 140 and server 150 may be, for example, IBM® Power Systems™ servers. In addition, clients 110 and 120 connect to network 130. Clients 110 and 120 may be, for example, personal computers or network computers. In the depicted example, server 140 provides data and/or services such as, but not limited to, data files, operating system images, and applications to clients 110 and 120. Network data processing system 100 may include additional servers, clients, and other devices.
In the depicted example, network data processing system 100 is the Internet with network 130 representing a worldwide collection of networks and gateways that use the Transmission Control Protocol/Internet Protocol (TCP/IP) suite of protocols to communicate with one another. At the heart of the Internet is a backbone of high-speed data communication lines between major nodes or host computers, consisting of thousands of commercial, governmental, educational and other computer systems that route data and messages. Of course, network data processing system 100 also may be implemented as a number of different types of networks, such as for example, an intranet, a local area network (LAN), a wide area network (WAN), a telephone switching infrastructure, etc.
Processor unit 204 serves to execute instructions for software that may be loaded into memory 206. Processor unit 204 may be a set of one or more processors or may be a multi-processor core, depending on the particular implementation. Further, processor unit 204 may be implemented using one or more heterogeneous processor systems in which a main processor is present with secondary processors on a single chip. As another illustrative example, processor unit 204 may be a symmetric multi-processor system containing multiple processors of the same type.
In some embodiments, memory 206 may be a random access memory or any other suitable volatile or non-volatile storage device. Persistent storage 208 may take various forms depending on the particular implementation. For example, persistent storage 208 may contain one or more components or devices. Persistent storage 208 may be a hard drive, a flash memory, a rewritable optical disk, a rewritable magnetic tape, or some combination of the above. The media used by persistent storage 208 also may be removable such as, but not limited to, a removable hard drive.
Communications unit 210 provides for communications with other data processing systems or devices. In these examples, communications unit 210 is a network interface card. Modems, cable modem and Ethernet cards are just a few of the currently available types of network interface adapters. Communications unit 210 may provide communications through the use of either or both physical and wireless communications links.
Input/output unit 212 enables input and output of data with other devices that may be connected to data processing system 200. In some embodiments, input/output unit 212 may provide a connection for user input through a keyboard and mouse. Further, input/output unit 212 may send output to a printer. Display 214 provides a mechanism to display information to a user.
Instructions for the operating system and applications or programs are located on persistent storage 208. These instructions may be loaded into memory 206 for execution by processor unit 204. The processes of the different embodiments may be performed by processor unit 204 using computer implemented instructions, which may be located in a memory, such as memory 206. These instructions are referred to as program code, computer usable program code, or computer readable program code that may be read and executed by a processor in processor unit 204. The program code in the different embodiments may be embodied on different physical or tangible computer readable media, such as memory 206 or persistent storage 208.
Program code 216 is located in a functional form on computer readable media 218 that is selectively removable and may be loaded onto or transferred to data processing system 200 for execution by processor unit 204. Program code 216 and computer readable media 218 form computer program product 220 in these examples. In one example, computer readable media 218 may be in a tangible form, such as, for example, an optical or magnetic disc that is inserted or placed into a drive or other device that is part of persistent storage 208 for transfer onto a storage device, such as a hard drive that is part of persistent storage 208. In a tangible form, computer readable media 218 also may take the form of a persistent storage, such as a hard drive, a thumb drive, or a flash memory that is connected to data processing system 200. The tangible form of computer readable media 218 is also referred to as computer recordable storage media. In some instances, computer readable media 218 may not be removable.
Alternatively, program code 216 may be transferred to data processing system 200 from computer readable media 218 through a communications link to communications unit 210 and/or through a connection to input/output unit 212. The communications link and/or the connection may be physical or wireless in the illustrative examples.
The different components illustrated for data processing system 200 are not meant to provide architectural limitations to the manner in which different embodiments may be implemented. The different illustrative embodiments may be implemented in a data processing system including components in addition to or in place of those illustrated for data processing system 200. Other components shown in
In the embodiment illustrated in
In the embodiment illustrated in
In the illustrated embodiment, memory 342 also includes encryption/decryption data 360 comprising an encryption key 362 and, if obtained by telephone unit 312, one or more decryption keys 364 corresponding to other telephone units. Encryption key 362 comprises the encryption key generated by certificate of authority 302 and assigned to telephone unit 312 (e.g., encryption key 328 corresponding to a particular telephone unit). In the illustrated embodiment, each telephone number 370 corresponding to another telephone unit is associated with and/or otherwise related to a particular decryption key 372 for decrypting an encrypted identification object received from a telephone unit corresponding to the particular telephone number 370. The decryption key 372 may be obtained by telephone unit 312 from the certificate of authority 302 or directly from another telephone unit.
In operation, a user/owner or other entity may register telephone unit 312 with certificate of authority 302 (e.g., upon initiation of telephone service with a service provider or at another time) to enable the generation of encryption key 328 to be used by telephone unit 312 to encrypt identification object 354 and the generation of decryption key 330 to be used by other telephone units to decrypt an encrypted identification object received from telephone unit 312. The encryption key 328 associated with the particular telephone number 326 assigned to telephone unit 312 (e.g., a telephone number stored on a subscriber identity module (SIM) card of telephone unit 312) may be obtained from certificate of authority 302 and entered/stored manually in telephone unit 312 (e.g., as encryption key 362) or obtained/received electronically via network 332 from certificate of authority 302. In some embodiments, only encryption key 328/362 is received by telephone unit 312 from certificate of authority 302 while decryption key 330 associated with telephone unit 312 may be obtained by other telephone units directly from certificate of authority 302. In other embodiments, decryption key 334 telephone unit 312 may also be obtained by telephone unit 312 from certificate of authority 302 and stored on telephone unit 312 to facilitate the transmittal of decryption key 332 to other telephone units to thereafter enable such other telephone units to decrypt an encrypted identification object 354 received from telephone unit 312. For example, in some embodiments, a user/owner of telephone unit 312 may provide a user/owner of another telephone unit with its decryption key 330 by oral communication to enable another user/owner of a telephone unit to enter/store decryption key 330 in their telephone unit (e.g., by entering a code into the receiving party's telephone unit using a keypad or other input device). In some embodiments, telephone unit 312 may be configured to automatically transmit the decryption key 330 associated with telephone unit 312 to another telephone unit (e.g., in response to a user/owner of telephone unit 312 inputting a transmit request or other code such that telephone unit 312 automatically transmits decryption key 330 over a telephone switch network to the receiving telephone unit, such as in the form of dual-tone multi-frequency (DTMF) signals). The receiving telephone unit may be configured to prepare to accept a particular series of DTMF signals as the decryption key 330 corresponding to the communicating telephone unit 312 and store decryption key 330 as corresponding to the decryption key for telephone unit 312.
In response to initiation of a telephone call by telephone unit 312, authentication logic 352 may cause cryptographic module 350 to encrypt identification object 354 using encryption key 362 and transmit the encrypted identification object 354 to a receiving telephone unit as part of the initiated telephone call (e.g., inserted into the body of the session initiation protocol (SIP) invitation). At the receiving telephone unit, authentication logic 352 may identify the telephone number 370 of the initiating telephone unit 312 (e.g., via caller ID information) and determine/identify the decryption key 372 associated with the calling telephone unit 312 to enable decryption of the received encrypted identification object 354. The receiving telephone unit decrypts the encrypted identification object 354 and authentication logic 352 on the receiving telephone unit may be used to verify and/or authenticate the identity of the user/owner of the calling telephone unit 312 (e.g., by evaluating the legibility of the decrypted identification object 354 or by otherwise displaying to a user/owner of the receiving telephone unit the result of the decrypted identification object 354 to thereby enable the user/owner of the receiving telephone unit to evaluate the decrypted result).
During a previous telephone communication exchange between telephone units 3121 and 3122, telephone unit 3121 may have transmitted to telephone unit 3122 its decryption key 3300. In some embodiments, telephone unit 3122 may have received decryption key 3300 directly from certificate authority 302. Telephone unit 3122 stores therein decryption key 3300 as corresponding to the telephone number 3260.
In operation, telephone unit 3121 initiates a telephone call to telephone unit 3122, and as part of the initiated telephone call, retrieves its identification object 354 and encrypts identification object 354 with encryption key 3280. Telephone unit 3122 transmits the encrypted identification object 354 to a telephone switch network 500 destined to telephone unit 3122. Telephone unit 3122 receives the encrypted identification object 354 along with caller identification information (e.g., telephone number 3260 corresponding to telephone unit 3121). Authentication logic 352 on telephone unit 3122 determines and/or identifies the decryption key corresponding to telephone number 3260 (e.g., decryption key 3300) and decrypts the received encrypted identification object 354 using cryptographic module 350. As indicated above, in some embodiments, decryption key 3300 may be formed based on a combination of telephone number 3260 and a particular decryption code 402 assigned to telephone number 3260. Authentication logic 352 on telephone unit 3122 evaluates and/or otherwise displays the result of the decryption to authenticate the calling party of telephone unit 3121.
As discussed above, telephone unit 3122 may have stored thereon a plurality of correlated telephone numbers and decryption keys corresponding to a plurality of other telephone units such that an encrypted identification object received from any such other telephone unit may be decrypted using a corresponding decryption key. The decryption keys corresponding to such other telephone units may have been obtained directly from certificate authority 302 or directly from the other telephone units. For example, as described above, during a previous communication exchange between telephone unit 3121 and telephone unit 3122, a user/owner of telephone unit 3121 may have initiated a transmittal of its decryption key 3300 to telephone unit 3122 by inputting a particular code or request input (e.g., inputting a passcode, pin or other input into a keypad of telephone unit 3121). A user/owner of telephone unit 3122 may have initiated a process on telephone unit 3122 to receive, accept, assign and store on telephone unit 3122 the received decryption key 3300 as corresponding to telephone number 3260, thereby enabling subsequently received encrypted identification objects 354 from telephone unit 3121 to be decrypted and the identity of the caller authenticated.
Thus, embodiments of the present disclosure enable authentication of a caller's identity in a mobile or wireless phone call. For example, embodiments of the present disclosure enable a calling party to encrypt an identification object having information corresponding to an identity of the calling party and transmit the encrypted identification information to the called party as part of the telephone call (e.g., inserted into the body of the session initiation protocol (SIP) invitation). The receiving or called party may decrypt the received identification object using a decryption key previously received from the calling party or received from a third party certificate authority (e.g., a telephone service provider). The decrypted result may then be evaluated to determine the authenticity of the identity of the calling party. For example, if the decrypted result is scrambled or illegible, the authentication logic 352 may return an error or other notice of failure of caller identity authentication. The receiving or called party may then reject the call, if desired.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The corresponding structures, materials, acts, and equivalents of all means or step plus function elements in the claims below are intended to include any structure, material, or act for performing the function in combination with other claimed elements as specifically claimed. The description of the present disclosure has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the disclosure. The embodiment was chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
The flowchart and block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
