Abstract:
Disclosed are systems and method for utilizing a dedicated computer security service. An exemplary method includes storing in an electronic database rules that indicate when to use either a first cloud service or a second cloud service for one of the security services, receiving a request from a client computer to access the security service, determining parameters relating to the received request, applying the parameters to the plurality of rules to determine an instruction indicating whether to transmit the request to the first cloud service or the second cloud service; and transmitting the request to either the first cloud service or the second cloud service, based on the instruction, to use the at least one security service.

Description:
FIELD OF TECHNOLOGY 
       [0001]    The present disclosure relates generally to the field of computer security, and, more particularly, to a system and method of utilizing a dedicated computer security service. 
       BACKGROUND 
       [0002]    Currently, so-called “cloud” technologies are becoming increasingly popular. Cloud technologies provide remote access to computing resources or data without substantial expense for the computer infrastructure of a company (i.e., the client of the cloud technology service). Typically, the client only needs to have a constant Internet connection to gain access to a cloud service. In general, there are several types of cloud services—private cloud services, public cloud services, and a hybrid of the two. A private cloud service is designed for a particular company or group of persons and essentially constitutes a dedicated network with resources, whereas a public cloud service provides access to its resources to all connected clients. A hybrid cloud service combines both of these approaches and enables a more flexible construction of the computer infrastructure of a company. 
         [0003]    Not surprisingly, companies that produce antivirus software are also interested in cloud technologies. In particular, due to the growth in the number of malicious programs and the techniques for their distribution, the need has arisen for a new approach to protect users other than the constant releasing of antivirus databases, which, in turn, are not insured against possible mistakes due to inadequate testing time, as well as due to the possibility of the companies producing antivirus solutions concealing the decision making (i.e. malware detection) logic in the cloud service. 
         [0004]    One of the examples of cloud technologies in the field of computer security is Kaspersky Security Network (KSN). Very generally stated, the algorithm of its operation is as follows: the user sends a request to a cloud service to check an unknown file or link and receives a reply in the form of a “safe” verdict or “dangerous” verdict. In practice, the technology is much more complicated than this example, and its various implementations have been described in U.S. Pat. Nos. 7,640,589 and 8,732,836, for example, both of which are also assigned to the assignee of this application. 
         [0005]    Cloud technologies also have a drawback due to the fact that when the technologies are used in corporate networks, data may be involved (e.g., data on an unknown file, such as digital signature, size, title, and the like) whose use/access by a third party might be forbidden. As a result, the network administrator may prevent the transmission of such data and/or refuse the use of such a technology, since it may run counter to confidentiality policies existing in the organization, also known as DLP (“Data Leak Prevention”) policies. 
         [0006]    In light of such an issue, there are certain proposed solutions to make data anonymous or for a more flexible setup of a cloud service. For example, in one proposed solution, data can be anonymously transmitted, such that the service can be set up for a particular user. Moreover, in order to make use of antivirus cloud technologies, it is important to preserve a balance between the level of detection of malicious programs and attacks (i.e., the quality of the antivirus services provided) and the level of compliance with secrecy (i.e., privacy) involving the checking of the data being sent. 
         [0007]    Analyzing the existing solutions reveals that these technologies are often ineffective and, in certain circumstances, unusable. 
       SUMMARY 
       [0008]    The disclosed system and method pertains to antivirus technologies, and, more specifically, to a system and method of utilizing a dedicated computer security service. Advantageously, the disclosed system and method can prevent the transmission of confidential data of a client company that is using the security cloud services of a company providing computer security services. Another technical result of the disclosed system and method is the reduction of the volume of data of the client company using the security cloud services of the company providing computer security services that is being sent via the Internet. According to one of the example aspects disclosed herein, a system and method is provided for redirecting a request from the user&#39;s computer to a public or private cloud service, where the user&#39;s computer is located within the network of a company which uses both a public and private cloud service. 
         [0009]    According to one aspect, a method is provided for utilizing computer security services. According to the exemplary aspect, the method includes storing, in an electronic database, a plurality of rules that indicate when to use either a first cloud service or a second cloud service for at least one of the security services; receiving a request from a client computer to access the at least one security service; determining, by a hardware processor, at least one parameter relating to the received request; applying, by the hardware processor, the at least one parameter to the plurality of rules to determine an instruction indicating whether to transmit the request to the first cloud service or the second cloud service; and transmitting the request to one of either the first cloud service or the second cloud service, based on the instruction, to use the at least one security service. 
         [0010]    According to another aspect, the method further includes performing, by the one of the first cloud service and the second cloud service, the at least on security service on the request; and transmitting, by the one of the first cloud service and the second cloud service, an operation instruction to the client based on a result of the performed at least one security service. 
         [0011]    According to another aspect, the first cloud service is a private cloud service and the second cloud service is a public cloud service. 
         [0012]    According to another aspect, the request from the client computer to access the at least one security service does not include an indication of whether to transmit the request to the first cloud service or the second cloud service. 
         [0013]    According to another aspect, the request is initially transmitted to first cloud service and redirected to second cloud service based on the instruction determined by the hardware processor. 
         [0014]    According to another aspect, the storing of the plurality of rules comprises storing rules relating to at least one of a predetermined time period when software of the first cloud service was last updated, a type of the at least one security service provided by the first cloud service, a type of data being sent by the request, a traffic quota of an amount of requests sent to at least one of the first or second cloud services. 
         [0015]    According to another aspect, the determining of the at least one parameter relating to the received request comprises determining at least one of a type of the at least one security service being accessed by the request, a type of file included in the request, a type of link included in the request the request, and a hash sum included in the request. 
         [0016]    According to an exemplary aspect, a system is provided for utilizing computer security services. According to the exemplary aspect, the system includes an electronic database configured to store a plurality of rules that indicate when to use either a first cloud service or a second cloud service for at least one of the security services; and a hardware processor configured to receive a request from a client computer to access the at least one security service, determine at least one parameter relating to the received request, apply the at least one parameter to the plurality of rules to determine an instruction indicating whether to transmit the request to the first cloud service or the second cloud service, and transmit the request to one of either the first cloud service or the second cloud service, based on the instruction, to use the at least one security service. 
         [0017]    According to another aspect, a non-transitory computer readable medium storing computer executable instructions is provided for utilizing computer security services. According to the exemplary aspect, the medium includes instructions for storing, in an electronic database, a plurality of rules that indicate when to use either a first cloud service or a second cloud service for at least one of the security services; receiving a request from a client computer to access the at least one security service; determining at least one parameter relating to the received request; applying the at least one parameter to the plurality of rules to determine an instruction indicating whether to transmit the request to the first cloud service or the second cloud service; and transmitting the request to one of either the first cloud service or the second cloud service, based on the instruction, to use the at least one security service. 
         [0018]    The above simplified summary of example aspects serves to provide a basic understanding of the present disclosure. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects of the present disclosure. Its sole purpose is to present one or more aspects in a simplified form as a prelude to the more detailed description of the disclosure that follows. To the accomplishment of the foregoing, the one or more aspects of the present disclosure include the features described and exemplarily pointed out in the claims. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0019]    The accompanying drawings, which are incorporated into and constitute a part of this specification, illustrate one or more example aspects of the present disclosure and, together with the detailed description, serve to explain their principles and implementations. 
           [0020]      FIG. 1  illustrates an example of the interaction of a computer with a public cloud service of a company providing computer security services (an antivirus company). 
           [0021]      FIG. 2  illustrates a block diagram of an exemplary system for utilizing a dedicated computer security service according to an exemplary aspect. 
           [0022]      FIG. 3  illustrates a block diagram of an exemplary system for utilizing a dedicated computer security service according to an alternative exemplary aspect. 
           [0023]      FIG. 4  illustrates an example of the types of connected security services that can be provided by a cloud service according to an exemplary aspect. 
           [0024]      FIG. 5  illustrates a flow chart for a method for utilizing a dedicated computer security service according to an exemplary aspect. 
           [0025]      FIG. 6  illustrates an example of a general-purpose computer system on which the disclosed systems and method can be implemented according to an example aspect. 
       
    
    
     DETAILED DESCRIPTION 
       [0026]    Example aspects are described herein in the context of a system, method and computer program product for utilizing a dedicated computer security service. Those of ordinary skill in the art will realize that the following description is illustrative only and is not intended to be in any way limiting. Other aspects will readily suggest themselves to those skilled in the art having the benefit of this disclosure. Reference will now be made in detail to implementations of the example aspects as illustrated in the accompanying drawings. The same reference indicators will be used to the extent possible throughout the drawings and the following description to refer to the same or like items. 
         [0027]    A company providing computer security services can be considered an antivirus company that provides access to its cloud security services (e.g., AO Kaspersky Lab and the Kaspersky Security Network service). Furthermore, a client company can be a company that uses cloud security services provided by a company providing computer security services. As described above, a public cloud service can be considered a cloud security service that is provided by a company providing computer security services to client companies (for example, Kaspersky Security Network). 
         [0028]      FIG. 1  illustrates a block diagram of an exemplary interaction of a computer (located in the network of a client company) with a public cloud service of a company providing computer security services (i.e., an antivirus company). As shown, the antivirus software sends a request from the computer  100  of the user for analysis of an unknown object, which can be a file or a link for example, via the Internet  110  to the public cloud service  120  of an antivirus company. The request is analyzed by internal working logic of the cloud service, and, based on the analysis, a verdict is issued on the object that is sent back to the computer  100 , where its antivirus software uses the received verdict for further action on the object. Typically, the verdict will be an indication of whether the object is harmful, but verdicts can also be a rule for the application control operating logic that limits access of programs to the computer resources. An example of such a service is Kaspersky Security Network (KSN). Moreover, as described above, the implementation of the operations of the KSN has been described in U.S. Pat. Nos. 7,640,589 and 8,732,836, for example, the contents of each of which is also incorporated by reference in their entirety. 
         [0029]    As noted above, one drawback from using only a public cloud service is that the public cloud can use data that constitutes a possible trade secret or a reference to this, which requires different operating variants of such a service. 
         [0030]    Accordingly,  FIG. 2  illustrates a block diagram of an exemplary system for utilizing a dedicated computer security service according to an exemplary aspect. More particularly,  FIG. 2  illustrates the operation of a computer in a network with a private cloud service of a company providing computer security services (e.g., an antivirus company). In the context of the disclosed system and method, as compared to  FIG. 1 , a private cloud service  105  is provided that is configured to function similar to the public cloud service  120  of the antivirus company. Thus, the company providing computer security services provides the cloud service both in the form of a public cloud service  120  and in the form of a private cloud service  105 . In such a case, all requests from the computer  100  are preferably transmitted to the private cloud service  105 , which contains all the internal working logic (or at least the most important part for the operation) of the public cloud service  120 . Preferably, the link to the public cloud service  120  via the Internet  110  still remains inasmuch as there is a need for continual updating of the logic and data for the operation (e.g., the antivirus databases) of the private cloud service  105  according to an exemplary aspect. However, due to the issue of update delays (related to the testing and distributing of the update), the private cloud service  105  may not have the most current information on threats (generally being the last update of the antivirus databases) in some instances and there is a risk of letting through an unknown malicious program or detecting an executable file of a legitimate application as being harmful (e.g., a false positive detection). Thus, according to the exemplary aspect, both the private and the public cloud service can be utilized for providing the security services as will be explained in more detail below. Advantageously, using a private cloud service  105  is provides a more convenient setup and potentially cheaper cost of use. 
         [0031]      FIG. 3  illustrates a block diagram of an exemplary system for utilizing a dedicated computer security service according to an alternative exemplary aspect. As shown,  FIG. 3  illustrates an exemplary operation of the computer in a network utilizing both a private and public cloud service of a company providing computer security services (e.g., an antivirus company). In contrast to the example of  FIG. 2 , the exemplary system of  FIG. 3  provides a decision making module  125  that is configured to determine where to send the request from the computer  100 , i.e., to the private cloud service  105  or to the public cloud service  120 . 
         [0032]    According to an exemplary aspect, the decision making module  125  can include an electronic database configured to store the established policies indicating which requests should be transmitted to the private cloud service  105  and which requests should be transmitted to the public cloud service  120 . As will be described in more detail below, the decision making module  125  can determine one or more parameters of the received request and compare and/or apply these parameters to the established policies to determine the appropriate service to provide the requested security service(s), i.e., the private cloud service  105  or the public cloud service  120 . 
         [0033]    According to an exemplary aspect, the criteria for selecting the particular cloud service (i.e., either the private or public cloud service) relate to parameters (i.e., cloud service selection policies), that can include, but not limited to, the date of the last update of the private cloud service  105 . For example, the more outdated the antivirus databases used by the private cloud service  105 , the more likely an unknown malicious program will be missed or an unknown clean file classified as malicious (false positive). 
         [0034]    According to another aspect, the criteria to determine whether to transmit the request to either the private cloud service  105  or to the public cloud service  120  can be based on the types of connected services in the private cloud service  105 . Although the types of connected services will be discussed more closely in  FIG. 4 , as an example, a parameter can indicated that the request should be redirected to the public cloud service  120  if the checking of objects of a certain type (e.g., a URL) is not supported within the private cloud service  105 . 
         [0035]    According to another aspect, the criteria to determine whether to transmit the request to either the private cloud service  105  or to the public cloud service  120  can be the type of data being sent by the request. For example, the transmittal of information on files of a certain format (e.g., having a PDF format) may be forbidden by the confidentiality policy of the client company using both the private cloud service  105  and the public cloud service  120 , so that the request to check a similar file will be redirected to the private cloud service  105 . Advantageously, the disclosed system and method will prevent the transmittal of confidential data of the client company. 
         [0036]    According to yet another aspect, the criteria to determine whether to transmit the request to either the private cloud service  105  or to the public cloud service  120  can be a traffic quota. In this example, if a limitation exists on the volume of data being sent to the public cloud service  120 , upon reaching this limit all requests will be redirected to the private cloud service  105 . In the context of other variant aspects, the possibility exists of analyzing each request from the computer  100  in terms of the volume of data being sent, upon exceeding which the request is redirected to the private cloud service  105 . Advantageously, the disclosed system and method can reduce the volume of data being sent through the Internet, since in the case of the private cloud service  105  the data transmission is done only within the client company. 
         [0037]    According to another aspect, the decision making module  125  can also be implemented in the form of a separate client at the computer  100  side or in the form of a proxy server of the antivirus company at the client company&#39;s Internet gateway. 
         [0038]      FIG. 4  illustrates an example of the types of connected security services that can be provided by a cloud service according to an exemplary aspect. The connected security services can be provided by either the public cloud service  120  and/or the private cloud service  105 . 
         [0039]    As shown, the connected security services can include a file reputation service  405 . The file reputation service  405  is configured to determine whether an unknown file is harmful or not. In one of the exemplary aspects, this service works by comparing the hash sum of the unknown file with the hash sums of known harmful files. In addition, the file category can be determined, if it has been determined to be legitimate (for example, the file may belong to the category of browsers). 
         [0040]    The connected security services can further include link reputation service  410 , which is configured to determine whether an unknown link (e.g., URL address) is harmful or not. In one of the exemplary aspects, the service works by comparing the hash sum of the unknown link with the hash sums of known harmful links. In another exemplary aspect, either the entire link or its normalized value is compared (e.g., the site address or IP address). In addition, the link category can be determined, if it has been determined to be legitimate (e.g., the link may belong to the category of online shops). 
         [0041]    The connected security services can further include behavioral detection service  415 , which is configured to determine the harmfulness of an already executing file on the basis of the behavior of a process started from this file. Said process makes calls for system API functions, whose call log can be compared with the call log of already known harmful processes. One exemplary implementation of this service is described in U.S. Pat. No. 8,566,943, the contents of which are hereby incorporated by reference. 
         [0042]    The connected security services can further include certificate reputation service  420 , which is configured to process certificates of both sites and files in regard to their use by hackers. The implementation includes sending a certificate and its metadata for analysis by a company providing computer security services and as, for example, is described in U.S. Pat. No. 8,732,472, the contents of which are hereby incorporated by reference. 
         [0043]    The connected security services can further include false positive control service  425 , which is configured to test and revoke antivirus signatures in the event of a false positive as, for example, described in U.S. Pat. No. 8,732,836, the contents of which are hereby incorporated by reference. 
         [0044]    The connected security services can further include data transfer service  430 , which is configured to transmit files with the use of technologies such as p2p (i.e., “peer-to-peer”), for example. 
         [0045]    The connected security services can further include content filtration service  435 , which is configured to check email messages for spam. In one aspect, this service is configured to create a hash sum (or a set of hash sums) from an email (or its component parts) for comparison with a cluster of similar hash sums of other email, while a large cluster of identical emails is known as a spam sending. One exemplary implementation of this service is described in U.S. Pat. No. 8,738,721, the contents of which are hereby incorporated by reference. 
         [0046]    The connected security services can further include parental control service  440  configured to check the working of a parental control module and phishing service  445  configured to detect possible phishing web pages and links (for example, in a browser). 
         [0047]    It should be appreciated that the public cloud service  120  and/or the private cloud service  105  do not necessarily include all of the connected security services according to an exemplary aspect. Moreover, the proposed services operate with various data (i.e. data of various types)—files, links, hash sums of various objects (such as said files or links or the like), and also various metadata from said objects (e.g., size, time of creation, type of object, and the like). According to one exemplary aspect, the administrator of the network where the computer  100  is located can impose various limits on the sending of such data, which means that some services will not work from the public cloud service  120  and will use the private cloud service  105  and vice versa. 
         [0048]      FIG. 5  illustrates a flow chart for a method for utilizing a dedicated computer security service according to an exemplary aspect. As shown, in step  510  a request is transmitted from a computer  100  of a user towards a cloud service to use one or more of the connected security services. According to one aspect, it should be appreciated that there is no information from the computer  100  (more precisely, from the antivirus application installed on the computer  100 ) as to which service said computer is accessing at the particular time, i.e., the public cloud service  120  or the private cloud service  105 . Next, at step  520 , the request is received/intercepted by the decision making module  125 . In one variant aspect, the decision making module  125  can be implemented in the form of a proxy server of the antivirus company at the client company&#39;s Internet gateway. According to yet another exemplary aspect, the decision making module  125  can be provided on the computer  100 , and, in this case, there will be logic present to determine which service should be accessed. As step  530 , the decision making module  125  determines the parameters of the request, including, for example, which security service the request is accessing, which data (more precisely, the type thereof, such as a file, a link, a hash sum or the like) is being transmitted and/or requested, and checks/applies these one or more parameters against the established policies for selection of the cloud service that are described above in further detail in the context of  FIG. 3 . If the policies allow a redirecting of the request to the public cloud service  120 , then the request is redirected in that direction in step  550  based on an appropriate instruction generated by the decision making module  125 . Otherwise, the request is redirected to the private cloud service  105  in step  540  based on an appropriate instruction generated by the decision making module  125 . 
         [0049]    The following provides three examples of redirected a request to a different service. In a first example, the request from the user&#39;s computer  100  contains a type of data being transmitted (e.g., format of the analyzed file is a PDF), and the established policies prohibit this type of file from being sent outside the company by the cloud service selection policies. As a result, the decision making module  125  determines that the request will be retransmitted to the private cloud service  105  for the appropriate security services/requested. 
         [0050]    In another example, the decision making module  125  determines that the request from the user&#39;s computer  100  exceeds the size of the established quota for data transfer as defined by the cloud service selection policies. As a result, the decision making module  125  determines that the request will be retransmitted to the private cloud service  105  for the appropriate/requested security services. 
         [0051]    In another example, the decision making module  125  determines that the request from the user&#39;s computer  100  contains a permitted type of data being transmitted (e.g., information on an Internet link), but the updating of the databases of the private cloud service  105  occurred longer than a predetermined amount of time, for example, more than  12  hours ago. In this instance, the decision making module  125  determines that the request will be retransmitted to the public cloud service  120  for the appropriate/requested security services. 
         [0052]      FIG. 6  illustrates an example of a general-purpose computer system (which may be a personal computer or a server) on which the disclosed systems and method can be implemented according to an example aspect. As shown, the computer system includes a central processing unit  21 , a system memory  22  and a system bus  23  connecting the various system components, including the memory associated with the central processing unit  21 . The system bus  23  is realized like any bus structure known from the prior art, containing in turn a bus memory or bus memory controller, a peripheral bus and a local bus, which is able to interact with any other bus architecture. The system memory includes permanent memory (ROM)  24  and random-access memory (RAM)  25 . The basic input/output system (BIOS)  26  includes the basic procedures ensuring the transfer of information between elements of the personal computer  20 , such as those at the time of loading the operating system with the use of the ROM  24 . 
         [0053]    The personal computer  20 , in turn, includes a hard disk  27  for reading and writing of data, a magnetic disk drive  28  for reading and writing on removable magnetic disks  29  and an optical drive  30  for reading and writing on removable optical disks  31 , such as CD-ROM, DVD-ROM and other optical information media. The hard disk  27 , the magnetic disk drive  28 , and the optical drive  30  are connected to the system bus  23  across the hard disk interface  32 , the magnetic disk interface  33  and the optical drive interface  34 , respectively. The drives and the corresponding computer information media are power-independent modules for storage of computer instructions, data structures, program modules and other data of the personal computer  20 . 
         [0054]    The present disclosure provides the implementation of a system that uses a hard disk  27 , a removable magnetic disk  29  and a removable optical disk  31 , but it should be understood that it is possible to employ other types of computer information media  56  which are able to store data in a form readable by a computer (solid state drives, flash memory cards, digital disks, random-access memory (RAM) and so on), which are connected to the system bus  23  via the controller  55 . 
         [0055]    The computer  20  has a file system  36 , where the recorded operating system  35  is kept, and also additional program applications  37 , other program modules  38  and program data  39 . The user is able to enter commands and information into the personal computer  20  by using input devices (keyboard  40 , mouse  42 ). Other input devices (not shown) can be used: microphone, joystick, game controller, scanner, and so on. Such input devices usually plug into the computer system  20  through a serial port  46 , which in turn is connected to the system bus, but they can be connected in other ways, for example, with the aid of a parallel port, a game port or a universal serial bus (USB). A monitor  47  or other type of display device is also connected to the system bus  23  across an interface, such as a video adapter  48 . In addition to the monitor  47 , the personal computer can be equipped with other peripheral output devices (not shown), such as loudspeakers, a printer, and so on. 
         [0056]    The personal computer  20  is able to operate in a network environment, using a network connection to one or more remote computers  49 . The remote computer (or computers)  49  are also personal computers or servers having the majority or all of the aforementioned elements in describing the nature of a personal computer  20 , as shown in  FIG. 6 . Other devices can also be present in the computer network, such as routers, network stations, peer devices or other network nodes. 
         [0057]    Network connections can form a local-area computer network (LAN)  50  and a wide-area computer network (WAN). Such networks are used in corporate computer networks and internal company networks, and they generally have access to the Internet. In LAN or WAN networks, the personal computer  20  is connected to the local-area network  50  across a network adapter or network interface  51 . When networks are used, the personal computer  20  can employ a modem  54  or other modules for providing communications with a wide-area computer network such as the Internet. The modem  54 , which is an internal or external device, is connected to the system bus  23  by a serial port  46 . It should be noted that the network connections are only examples and need not depict the exact configuration of the network, i.e., in reality there are other ways of establishing a connection of one computer to another by technical communication modules. 
         [0058]    In various aspects, the systems and methods described herein may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the methods may be stored as one or more instructions or code on a non-transitory computer-readable medium. Computer-readable medium includes data storage. By way of example, and not limitation, such computer-readable medium can comprise RAM, ROM, EEPROM, CD-ROM, Flash memory or other types of electric, magnetic, or optical storage medium, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a processor of a general purpose computer. 
         [0059]    In various aspects, the systems and methods described in the present disclosure can be addressed in terms of modules. The term “module” as used herein refers to a real-world device, component, or arrangement of components implemented using hardware, such as by an application specific integrated circuit (ASIC) or field-programmable gate array (FPGA), for example, or as a combination of hardware and software, such as by a microprocessor system and a set of instructions to implement the module&#39;s functionality, which (while being executed) transform the microprocessor system into a special-purpose device. A module can also be implemented as a combination of the two, with certain functions facilitated by hardware alone, and other functions facilitated by a combination of hardware and software. In certain implementations, at least a portion, and in some cases, all, of a module can be executed on the processor of a general purpose computer (such as the one described in greater detail in  FIG. 6  above). Accordingly, each module can be realized in a variety of suitable configurations, and should not be limited to any particular implementation exemplified herein. 
         [0060]    In the interest of clarity, not all of the routine features of the aspects are disclosed herein. It would be appreciated that in the development of any actual implementation of the present disclosure, numerous implementation-specific decisions must be made in order to achieve the developer&#39;s specific goals, and these specific goals will vary for different implementations and different developers. It is understood that such a development effort might be complex and time-consuming, but would nevertheless be a routine undertaking of engineering for those of ordinary skill in the art, having the benefit of this disclosure. 
         [0061]    Furthermore, it is to be understood that the phraseology or terminology used herein is for the purpose of description and not of restriction, such that the terminology or phraseology of the present specification is to be interpreted by the skilled in the art in light of the teachings and guidance presented herein, in combination with the knowledge of the skilled in the relevant art(s). Moreover, it is not intended for any term in the specification or claims to be ascribed an uncommon or special meaning unless explicitly set forth as such. 
         [0062]    The various aspects disclosed herein encompass present and future known equivalents to the known modules referred to herein by way of illustration. Moreover, while aspects and applications have been shown and described, it would be apparent to those skilled in the art having the benefit of this disclosure that many more modifications than mentioned above are possible without departing from the inventive concepts disclosed herein.