Method of using an electronic ticket and distributed server computer architecture for the same

Information

  • Patent Grant
  • 6725376
  • Patent Number
    6,725,376
  • Date Filed
    Thursday, November 13, 1997
    27 years ago
  • Date Issued
    Tuesday, April 20, 2004
    20 years ago
Abstract
A distributed computer system and server architecture transmitting an electronic ticket over the system, such as the Internet, enabling a user to be authenticated and authorized for a requested operation. An “eticket” architecture (including identification information) is generated by, for example, an authentication server. The information in the eticket is hashed using, for example, a Message Digest Protocol, and a hash number is generated. The hash number is then encrypted by the authentication server using a private key, and the identification information in the eticket and the encrypted hash number are concatenated by the authentication server to generate a completed “eticket” architecture. The “eticket” may then be transmitted over the Internet (i.e., a non-secure environment) from server to server without having the information in the “eticket” altered, and without having to “reauthenticate” the user at each server.
Description




TECHNICAL FIELD




The present invention relates to user authentication and/or authorization of data communications and, more particularly, to data communication over a distributed computer system and server architecture that securely maintains user authentication and/or authorization throughout the distributed computer system and server architecture.




BACKGROUND ART




Many Internet protocols and applications are designed to serve large public user groups. Because of this, Internet Servers were designed to serve their community in a stateless manner. One request to the server has no relationship to the previous or next request. All requests are independent, rather than considered as part of a user “session” to that server. This approach simplified server activity to service many requests from many users, without having to establish and track sessions for each user. However, the approach introduces a new problem to solve; user privacy and security.




In a network environment, security issues such as communication channel integrity and privacy, user authentication, and user authorization exist. Communication between two end points in a network has to be guarded against outside intervention (i.e., High Voltage noise, Lightning or Human). Security affording protection against this kind of intervention is commonly referred to as communication channel integrity and privacy.




Channel integrity and privacy precautions against “natural” events and are typically handled by communication protocols. Algorithms have been developed over the years to perfect and solve these “natural” events and have been proven effective through many years of usage. However, when introducing a channel integrity and privacy problem, such as Human intervention, the reliability of these algorithms deteriorates. Protocol level controls typically do not encrypt data, enabling human intervenors to change Cyclic Residency Control (CRC) information and any information on an open transmission channel. Hence, any user sensitive data (for example, credit card numbers or other private user information) traveling on the Internet can be obtained by any human intervenor.




In an effort to resolve this problem, Web Technology providers architected Secure Socket Layer (SSL). SSL is the product residing between Web applications and the Communication Protocol Layer. SSL provides data encryption, server authentication and message integrity for TCP/IP connections. This effectively handles protecting the privacy and integrity of data traveling over the Internet.




User authentication is defined as “determining the true identity of a user or an object attempting to access a system.” Any non-public system has to have an authentication system in order to filter and identify users from one another. However, Web servers do not typically keep track of the user identity throughout the duration of that users visit to the site. For complete security, the user identity must be provided with each request made of the Web server. This may be accomplished by having the user “log on” for each new request, or by conducting a behind the scenes “re-authentication” of the user for each request. These techniques are, however, inconvenient for the user and/or time consuming for the application.




User authorization involves determining what types of activities are permitted for an authenticated user or object. Authorization is generally grouped into two categories: (1) Data Set Authorization (typically controlled by the application), and (2) Function Set Authorization (typically controlled by the operating system).




Based on the foregoing, we have determined that web user “authentication” must first be accomplished before optionally following with user “authorization”. Hence, efficiency may be increased if “authentication” for each “authorization” request is eliminated.




SUMMARY OF THE INVENTION




To overcome the above-identified disadvantages and shortcomings of the prior art, it is a feature and advantage of the present invention to transmit data over a distributed computer system and server architecture, such as the world wide web, in a more secure and efficient manner.




It is another feature and advantage of the present invention to provide user authentication information which is maintained throughout transmission over a distributed computer system and server architecture, such as the world wide web.




It is another feature and advantage of the present invention to provide user authorization information in addition to the authentication information, enabling the user to gain access to system resources provided, for example, over the world wide web.




According to one aspect of the invention, a distributed computer system and server architecture transmit an electronic ticket, used for verifying user authorization information, to provide secure data communications over the distributed computer system and server architecture. At least one storage device stores data, and at least one user computer transmits the user authorization information and a user request to at least one server. The at least one server, connectable to the at least one user computer, generates the electronic ticket based on at least the authorization information. The authorization information is hashed to produce a signature, the signature is encrypted to prevent unauthorized alteration of the authorization information, and the authorization information and the encrypted signature are concatenated.




In one embodiment of the invention, the distributed computer system and architecture further includes at least another server authorizing the user to access system resources upon validating the integrity of the information in the electronic ticket.




In another embodiment of the invention, the at least one server is an authentication server authenticating the user based on authentication information to generate the electronic ticket including the authorization information.




Another aspect of the invention provides a method for using an electronic ticket generated on a distributed computer system and server architecture for verifying user authorization to provide secure data communication over a distributed computer system and server architecture. The method provides a data packet having information based at least on authorization information to at least a first server connectable to the distributed computer system and server architecture, produces a signature from the at least server by hashing at least the authentication information, encrypting at least the signature using the at least first server, concatenating the information in the data packet with the encrypted signature using the at least first server, and transmitting the ticket over the system in a non-secured environment. A user is authorized by at least a second server to access system resources upon validating the integrity of the information in the ticket having been transmitted in the non-secured environment.




In one embodiment of the invention, MD5 protocol is used to hash the information in the data packet.




In another embodiment of the invention, a private key is used to encrypt the signature.











BRIEF DESCRIPTION OF THE DRAWINGS




For a more complete understanding of the present invention and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings in which like numbers designate like parts, and in which:





FIG. 1

is a block diagram which illustrates a computer system upon which an embodiment of the invention may be implemented.





FIG. 2

is a diagram of a network within which the present invention may be implemented.





FIG. 3

is an exemplary diagram of a ticket in an embodiment of the present invention.





FIG. 4

is an exemplary diagram of an “eticket” in an embodiment of the present invention.





FIG. 5

is a flow diagram of a method of generating an “eticket” in an embodiment of the present invention.





FIG. 6

is a flow diagram of a high level flow authentication and authorization process of the present invention.





FIG. 7

is a ticket flow diagram of a high level flow authentication and authorization process of the present invention.





FIGS. 8A-8C

are a multiple part class object diagram of the authorization server.





FIG. 9

is a diagram of a high level architecture of the authentication server.





FIGS. 10A and 10B

are a multiple part interaction diagram notation of the start-up process of the authentication server.





FIG. 11

is an object message diagram representing the start-up process of the authentication server.





FIGS. 12A and 12B

are a multiple part interaction diagram notation of a user authentication attempt.





FIG. 13

is an object message diagram representing a user authentication attempt.











NOTATIONS AND NOMENCLATURE




The detailed descriptions which follow may be presented in terms of program procedures executed on a computer or network of computers. These procedural descriptions and representations are the means used by those skilled in the art to most effectively convey the substance of their work to others skilled in the art.




A procedure is here, and generally, conceived to be a self-consistent sequence of steps leading to a desired result. These steps are those requiring physical manipulations of physical quantities. Usually, though not necessarily, these quantities take the form of electrical or magnetic signals capable of being stored, transferred, combined, compared and otherwise manipulated. It proves convenient at times, principally for reasons of common usage, to refer to these signals as bits, values, elements, symbols, characters, terms, numbers, or the like. It should be noted, however, that all of these and similar terms are to be associated with the appropriate physical quantities and are merely convenient labels applied to these quantities.




Further, the manipulations performed are often referred to in terms, such as adding or comparing, which are commonly associated with mental operations performed by a human operator. No such capability of a human operator is necessary, or desirable in most cases, in any of the operations described herein which form part of the present invention; the operations are machine operations. Useful machines for performing the operation of the present invention include general purpose digital computers or similar devices.




The present invention also relates to apparatus for performing these operations. This apparatus may be specially constructed for the required purpose or it may comprise a general purpose computer as selectively activated or reconfigured by a computer program stored in the computer. The procedures presented herein are not inherently related to a particular computer or other apparatus. Various general purpose machines may be used with programs written in accordance with the teachings herein, or it may prove more convenient to construct more specialized apparatus to perform the required method steps. The required structure for a variety of these machines will appear from the description given.




BEST MODE FOR CARRYING OUT THE INVENTION




A method and apparatus for information discovery and visualization are described. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, that the present invention may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to avoid unnecessarily obscuring the present invention.




HARDWARE OVERVIEW





FIG. 1

is a block diagram which illustrates a computer system


100


upon which an embodiment of the invention may be implemented. Computer system


100


includes a bus


102


or other communication mechanism for communicating information, and a processor


104


coupled with bus


102


for processing information. Computer system


100


also includes a main memory


106


, such as a random access memory (RAM) or other dynamic storage device, coupled to bus


102


for storing information and instructions to be executed by processor


104


. Main memory


106


also may be used for storing temporary variables or other intermediate information during execution of instructions to be executed by processor


104


. Computer system


100


further includes a read only memory (ROM)


108


or other static storage device coupled to bus


102


for storing static information and instructions for processor


104


. A storage device


110


, such as a magnetic disk or optical disk, is provided and coupled to bus


102


for storing information and instructions.




Computer system


100


may be coupled via bus


102


to a display


112


, such as a cathode ray tube (CRT), for displaying information to a computer user. An input device


114


, including alphanumeric and other keys, is coupled to bus


102


for communicating information and command selections to processor


104


. Another type of user input device is cursor control


116


, such as a mouse, a trackball, or cursor direction keys for communicating direction information and command selections to processor


104


and for controlling cursor movement on display


112


. This input device typically has two degrees of freedom in two axes, a first axis (e.g., x) and a second axis (e.g., y), which allows the device to specify positions in a plane.




The invention is related to the use of computer system


100


to discover and visualize information according to a configurable information model. According to one embodiment of the invention, information discovery and visualization is provided by computer system


100


in response to processor


104


executing sequences of instructions contained in main memory


106


. Such instructions may be read into main memory


106


from another computer-readable medium, such as storage device


110


. However, the computer-readable medium is not limited to devices such as storage device


110


. For example, the computer-readable medium may include a floppy disk, a flexible disk, hard disk, magnetic tape, or any other magnetic medium, a CD-ROM, any other optical medium, punch cards, paper tape, any other physical medium with patterns of holes, a RAM, a PROM, an EPROM, a FLASH-EPROM, any other memory chip or cartridge, a carrier wave embodied in an electrical, electromagnetic, infrared, or optical signal, or any other medium from which a computer can read. Execution of the sequences of instructions contained in main memory


106


causes processor


104


to perform the process steps previously described. In alternative embodiments, hard-wired circuitry may be used in place of or in combination with, software instructions to implement the invention. Thus, embodiments of the invention are not limited to any specific combination of hardware circuitry and software.




Computer system


100


also includes a communication interface


118


coupled to bus


102


. Communication interface


118


provides a two-way data communication coupling to a network link


120


that is connected to a local network


122


. For example, communication interface


118


may be an integrated services digital network (ISDN) card or a modem to provide a data communication connection to a corresponding type of telephone line. As another example, communication interface


118


may be a local area network (LAN) card to provide a data communication connection to a compatible LAN. Wireless links may also be implemented. In any such implementation, communication interface


118


sends and receives electrical, electromagnetic or optical signals which carry digital data streams representing various types of information.




Network link


120


typically provides data communication through one or more networks to other data devices. For example, network link


120


may provide a connection through local network


122


to a host computer


124


or to data equipment operated by an Internet Service Provider (ISP)


126


. ISP


126


in turn provides data communication services through the world wide packet data communication network now commonly referred to as the “Internet”


128


. Local network


122


and Internet


128


both use electrical, electromagnetic or optical signals which carry digital data streams. The signals through the various networks and the signals on network link


120


and through communication interface


118


, which carry the digital data to and from computer system


100


, are exemplary forms of carrier waves transporting the information.




Computer system


100


can send messages and receive data, including program code, through the network(s), network link


120


and communication interface


118


. In the Internet example, a server


130


might transmit a requested code for an application program through Internet


128


, ISP


126


, local network


122


and communication interface


118


. In accordance with the invention, one such downloaded application provides for information discovery and visualization as described herein.




The received code may be executed by processor


104


as it is received, and/or stored in storage device


110


, or other non-volatile storage for later execution. In this manner, computer system


100


may obtain application code in the form of a carrier wave.




NETWORK OVERVIEW




Referring to

FIG. 2

, depicted is a network


200


within which the present invention may be implemented. A web server


220


according to one embodiment of the present invention gathers information dynamically from one or more data sources, which may be located at different servers and have incompatible formats, structures the information into an object-oriented, information model, and outputs the information for the user according to an associated visual representation. The information model and the visual representation are defined by human operators according to their own needs, purposes, and preferences as part of the configuration of the server. Multiple information models and visual representations may be defined for any server.




A user may access the web server


220


by executing a web browser at client


210


. Web browsers are well-known in the art, and are readily available from such corporations as Netscape Communications Corp. and Microsoft Corp. In order to access the web server


220


, the user at client browser


210


activates a hyperlink having a URL (Uniform Resource Locator) of the following form:












TABLE 1











http://www.server.com/query.pl?Class=Seed&






View=Paradigm














In the exemplary URL, the network address of the web server


220


is specified as “www.server.com” and the portion of the URL after the question mark (?) hold user specified parameters. The Class and Seed parameters, as explained in more detail hereinafter, indicate an object about which a user intends to discover information. The object is visualized according a paradigm specified by the Paradigm parameter, also explained in more detail hereinafter.




When the hyperlink is activated, the web server


220


receives a request to initiate an information discovery session, specified by parameters embedded in the URL. In response, the web server


220


gathers information from one or more data sources. The data sources can have incompatible formats, e.g. web page, relational database, spreadsheet, text file, etc. The data sources can be stored at a plurality of sites, for example, locally with respect to the web server


220


, such as a hard disk at local storage


222


, or externally at another site in the network, e.g. at mainframe


230


. In fact, the data source can even be another, remote information discovery web server


240


.




ELECTRONIC TICKETING ARCHITECTURE




Two server models are used to authenticate a user and maintain that authentication and authorization throughout, for example, a web site visit. The first is the Authentication Server


350


, and the second is the function based Authorization Server


360


. The Authentication Server


350


receives authentication information from a user and generates an eticket


310


(discussed in more detail below), and the Authorization Server


360


uses the information in the eticket


310


to check authorization functionality. In fact, authorization or access rights of the user are carried as a part of the eticket


310


. The two servers need not exist in the same hardware platform, and they are not tightly coupled. Hence, the eticket


310


provides trusted authentication information about the user to the authorization server


360


, and the authorization server


360


can perform its authority check functions.




Generally, the eticket


310


is signed with an industry standard public Message Digest signature (MD Protocol), and is protected by a public key encryption system. Hence, anyone who knows the public key may validate the eticket


310


without having to communicate with the Authentication Server


350


. This reduces communication between distributed server applications.





FIG. 3

is an exemplary diagram of a ticket in an embodiment of the invention. Extendible ticketing architecture “eticket” is based on public encryption algorithms. The eticket


310


has two functional parts. The first part contains the ticket framework


302


and optional user extension


304


(i.e., data packet including optional personal data) and the second part is a “seal” (signature)


306


which protects the eticket


310


content from alterations. Information contained in the eticket


310


are divided by a field separator, for example, a pipe “|” symbol, into separate fields of data.




For example, ticket framework


302


may contain the following information:




(1) Ticket Issuer: Ticket issuer host name (i.e. BillBlasterSrv),




(2) Client IP Address: XXX.XXX.XXX.XXX format (i.e. 65.192.217.6),




(3) Expiration Date and Time: YY-MM-DD HH:MM:SS (97-10-01 10:30:15), and




(4) User Authorization Level: Single String Text (i.e. AccMngO1).





FIG. 4

is an exemplary diagram of an eticket


310


in an embodiment of the present invention. Ticket extension (i.e., optional user extension


304


) is accomplished by adding any additional information to the eticket


310


. For example, the eticket


310


may contain additional “custom” information, such as user age, credit card number and zip code. When user extension


304


information is inserted into the eticket


310


framework, the data will reside between ticket framework


302


and the Public Key Signature “PKS”


306


fields. Hence, all ticket extension information will automatically be included in the Message Digest Protocol “MDP” and will affect the signature of the eticket


310


.




With the eticket


310


architecture, the following security issues in, for example, the world wide WEB environment are addressed:




(1) IP Spoofing,




(2) Time controlled session,




(3) Ticket alterations,




(4) Authorization Levels, and




(5) User dependent persistent data storing.





FIG. 5

is a flow diagram of a method of generating an eticket in an embodiment of the present invention. In step S


1


, the authentication server


350


receives authentication information from a user and generates an eticket


310


. At this stage of the process, the eticket


310


(excluding the public key signature field) contains two “fields” of information- (1) the ticket framework


302


and (2) the user extension


304


. The ticket framework


302


contains information such as ticket issuer server name, client IP address, expiration date and time, and user authorization, as previously described. The user extension


304


contains information such as user age, credit card number and zip code, also previously described. The information in the eticket


310


(excluding the public key signature field) is then, for example, optionally hashed using, for example, MD5 protocol, and encrypted with a public key encryption system in step S


2


, generating a hash number in step S


3


. Of course, other hashing or encryption techniques may also be used. The hash number is representative of the specific information contained in the current eticket


310


. The hash number generated in step S


3


is then encrypted using a standard private key encryption system in step S


4


. Encrypting the hash number with a private key encryption system prevents anyone without knowledge of the private key from viewing the hash number. In step S


5


, the eticket


310


and the encrypted hash number are concatenated to generate the completed “eticket” framework


310


. Hence, the completed “eticket” framework


310


includes three “fields” of information- (1) the ticket framework


302


, (2) the user extension


304


, and (3) the public key signature (encrypted hash number


306


).





FIG. 6

is a flow diagram of a high level authentication process and flow authorization of the present invention. In step


1


, a user provides authentication information (such as user ID and password) to, for example, a station terminal, and requests an operation. This “input” step inherently provides a secure operation, as the user is the only one who has access to the authentication information at this stage of the process. The user authentication information is then passed from the station terminal to the authentication server


350


for user validation. The authentication server


350


is the core of the system, and serves to coordinate processes of the system. Hence, the authentication server


350


properties are stored in a server property file, and a ReadConfiguration method will access the property file when the system initiates (see, for example, FIG.


10


). The file includes, for example, the following properties:





















ServerName:




Authentication Server Name







IP_Address:




Authentication Server IP








Address







TicketLifeTime:




Maximum life cycle of one








single operation







ErrorTextFileName:




Full path of Error Message








file







LogFileName:




Full path of Authentication








Server log file







Debug:




System Debug Level 0- None







ListenerPortNumber:




Listener Port Number







InfoPortNumber:




Information Server Port Number







MessageDigestName:




Message Digest Protocol Name








(MD-2, MD-5 etc.)







CryptoName:




Algorithm used for Message








Protection







publicKeyMSG:




Public Key for ticket








signature







privateKeyMSG:




Private Key for ticket








signature







privateKeyPassWord:




Private Key for password








encryption







privateKeySecureData:




Private Key for data security








requests (Encryption)







publicKeySecureData:




Public Key for data security








requests (Decryption)







certificate:




Server Certificate















In step


2


, the authentication server


350


validates the user authentication information and generates (or issues) an eticket


310


(including ticket framework


302


, user extension


304


, and public key signature


306


), as described above, in step


3


. The eticket


310


may then be securely passed from server to server, without the user having to “reauthenticate” each time a new server accesses the information. That is, a user does not have to “re-authenticate” all of the authentication information each time a new server is accessed. Rather, the eticket


310


provides the information (ticket framework


302


and user extension


304


) to the server. This information is passed in a secure manner as a result of the public and private key encryption systems (see example below).




The eticket


310


is returned to the client browser


210


when the user requests a service. The request (including the eticket


310


) is sent to the web server


220


or


240


. In step


4


, a web script checks the eticket


310


to determine whether the eticket


310


is authentic or invalid. The information in the eticket


310


must be rehashed. If the authorization server


360


has access to the hashing technique and public key used to encrypt the ticket hash information


304


, the authorization server


360


can rehash and decrypt the eticket signature


306


. If the hashing technique and public key operate to properly decrypt and rehash the eticket


310


, then the information stored in the eticket


310


is determined to be valid. However, it should be noted that the authorization server


360


only has the ability to access the information in the eticket


310


, it does not generally have the ability to alter the contact of the eticket


310


. Hence, the information in the eticket


310


remains secure. In order for the information in the eticket


310


to be altered, the server must have access to the private key used to encrypt the public key signature


306


(see example below).




Once the eticket


310


has been rehashed and decrypted, the operation request will be returned to the web script in step


8


. If the eticket


310


is invalid, an error message is generated, then the user operation request is rejected by the web server


220


or


240


in step


5


. If, on the other hand, the eticket


310


is valid, then the user request may continue to be processed by the authorization server


360


.




The authorization control process begins in step


6


, and the eticket


310


is passed to the authorization server


360


with the requested operation, in step


7


. As previously stated, there is no need for the user to “re-authenticate” herself at the authorization server


360


because the eticket


310


includes all of the necessary authentication information. In order for the authorization server


360


to determine whether or not the user is authorized for the specific user authorization level, the information in the eticket


310


is used to determine if the function is authorized for this user (step


9


). If the requester is authorized and the request is granted, it is executed in step


11


and the results are returned to the requester. If, on the other hand, the requester is not authorized and the request is denied, the user request is rejected in step


10


.




An example of processing the secured eticket


310


follows. Assume that the eticket comprises: (1) a four field ticket framework (fields


1


-


4


), (2) a four field user extension (fields


5


-


8


), and (3) a public key signature (field


9


).











Referring to

FIG. 5

, we can step through the “eticket” process. In this example, each of the four fields in the “eticket” framework


302


and user extension


304


include data represented by the number “1” in step S


1


. The Message Digest/Hash is represented by a summation (Σ) algorithm (equated to, or exemplary of, the MD5 protocol or other hashing algorithm). Hence, to calculate the Message Digest/Hash, a summation algorithm is implemented using all eight fields of data in step


2


. Thus, the summation of all eight fields of data results in the numerical value “8”. This “8” represents the Message Digest/Hash. Once the Message Digest/Hash has been generated, it may be encrypted in step S


3


using a private key. The encrypted signature is then generated in step S


4


. In this example, the encrypted public key signature of “8” is represented by “X”. In step S


5


, the encrypted public key signature is concatenated with the ticket framework and user extension information to generate the secure “eticket”, as follows.












FIG. 7

is a ticket flow diagram of a high level flow authorization and authentication process of the present invention. This figure is a simplified version of the diagram illustrated in

FIG. 6. A

simplified “flow” of the eticket


310


on the system is as follows. A user submits a sign-on request in step


1


. The sign-on request is submitted to the authentication server


350


, and the user is authenticated in step


2


. An eticket


310


is generated by the authentication server


350


using authentication information supplied by the user upon sign-on. The eticket


310


is passed to a web server, for example,


220


or


240


, in step


3


the eticket


310


is then returned to the user. When the user requests a function, the request and eticket


310


are sent to the web server


220


or


240


, and the server sends the requested eticket


310


in step


4


to function based authorization server


360


. An authentication and authorization check is performed in step


5


, and a determination is made as to whether or not the user is authorized to perform the requested function. If the user is not authorized, then the request made by the user is denied. If, on the other hand, it is determined that the user is authorized, then the request made by the user, for example a request for protected documents, will be validated and returned in step


6


to the web server


220


or


240


.





FIGS. 8A-8C

are a multiple part class object diagram of the authorization server.

FIG. 9

is a diagram of a high level architecture of the authentication server.

FIGS. 10A and 10B

are a multiple part interaction diagram notation of the start-up process of the authentication server.

FIG. 11

is an object message diagram representing the start-up process of the authentication server.

FIGS. 12A and 12B

are a multiple part interaction diagram notation of a user authentication attempt.

FIG. 13

is an object message diagram representing a user authentication attempt.




This invention will provide a much more confined user and a world wide WEB based application system by providing a user session concept with the “eticket” architecture. This ticketing architecture will tie the user browser


210


to the Internet Server


240


(or application). It uses all industry standard security components like public key encryption or message/text unique signature system (also known as message digest protocols). Hence, it becomes nearly impossible to alter any information in the “eticket”. At the same time it is very easy to validate and honor the ticket for authorization purposes even in a distributed server application.




The many features and advantages of the invention are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the invention which fall within the true spirit and scope of the invention. Further, since numerous modifications and variations will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.



Claims
  • 1. A distributed computer system and server architecture for transmitting an electronic ticket used for verifying user authorization and authentication to provide a session and a state environment over the distributed computer system and server architecture, comprising:at least one storage device storing data; at least one user computer transmitting the user authorization and authentication information and a user request, wherein the authentication information includes the IP address of the user; and at least one server, connected to the at least one storage device and the at least one user computer, that generates the electronic ticket based on at least the authorization and authentication information, wherein the authorization and authentication information is hashed to produce a signature, the signature is encrypted to prevent unauthorized alteration of the authorization and authentication information, and the authorization and authentication information and the encrypted signature are concatenated.
  • 2. The distributed computer system and server architecture according to claim 1, further comprising at least another server authorizing the user to access system resources upon validating the integrity of the information in the electronic ticket.
  • 3. The distributed computer system and server architecture according to claim 1, wherein the at least one server is an authentication server authenticating the user based on authentication information to generate the electronic ticket including the authorization information.
  • 4. A method for using an electronic ticket generated on a distributed computer system and server architecture for verifying user authorization and authentication to provide a session and a state environment, comprising the steps of:providing a data packet having information based on at least authorization and authentication information to at least a first server connectable to the distributed computer system and server architecture, wherein the authentication information includes the IP address of the user; producing a signature from the at least first server by hashing at least the authorization and authentication information and at least the IP address of the user; encrypting at least the signature using the at least first server to prevent unauthorized alteration of the information in the data packet; concatenating the information in the data packet using the at least first server with the encrypted signature to produce the electronic ticket; and transmitting the electronic ticket over the computer system in a non-secured environment.
  • 5. The method for using an electronic ticket according to claim 4, further comprising the steps of:authenticating a user based on authentication information supplied by the at least first server to generate the electronic ticket including the authorization information; and authorizing the user using at least a second server, connectable to the distributed computer system and server architecture, to access system resources upon validating the integrity of the information in the electronic ticket transmitted in the non-secured environment.
  • 6. The method of using an electronic ticket according to claim 5, further comprising the steps of:rehashing the information in the electronic ticket using at least a third server, connectable to the distributed computer system and server architecture; and decrypting the information in the electronic ticket using the at least third server and a public key.
  • 7. The method of using an electronic ticket according to claim 4, wherein the encrypting step uses a private key to encrypt the signature.
  • 8. The method of using an electronic ticket according to claim 4, wherein the signature is a hash number generated by hashing at least the authorization information.
  • 9. The method of using an electronic ticket according to claim 4, wherein the producing step uses MD5 protocol to hash the authorization information.
  • 10. The method of using an electronic ticket according to claim 4, wherein the at least first server is a web server.
  • 11. The method of using an electronic ticket according to claim 5, wherein the at least second server is a web server.
  • 12. The method of using an electronic ticket according to claim 6, wherein the at least third server is a web server.
  • 13. A distributed computer system and server architecture for transmitting an electronic ticket used for verifying user authorization and authentication on a transaction by transaction basis to provide a session and a state environment over the distributed computer system and server architecture, comprising:at least one storage device storing data; at least one user computer transmitting the user authorization and authentication information and a user transaction, wherein the authentication information includes the user IP address; and at least one server, connectable to the at least one storage device and the at least one user computer, generating the electronic ticket based on at least the authorization and authentication information and transmitting the electronic ticket to the user, wherein the electronic ticket is transmitted at or about the same time as the user transaction to provide the session and the state environment.
  • 14. A method for using an electronic ticket for verifying user authorization to provide a session and a state environment on a transaction by transaction basis, comprising the steps of:generating the electronic ticket based on at least the user authorization and authentication information, wherein the authentication information includes the IP address of the user; transmitting the electronic ticket at or about the same time as a user transaction; and verifying the user authorization and authentication to provide the session and the state environment for each user transaction.
  • 15. A method for using an electronic ticket generated on a distributed computer system and server architecture for verifying user authorization and authentication to provide a session and a state environment on a transaction by transaction basis, comprising the steps of:generating the electronic ticket, via at least one server, based on at least the user authorization and authentication information wherein the authentication information includes the IP address of the user; transmitting the electronic ticket at or about the same time as a user transaction; and verifying the user authorization and authentication to provide the session and state environment for each user transaction.
  • 16. A distributed computer system and server architecture for transmitting an electronic ticket used for verifying user authorization and authentication to provide a session and a state environment over the distributed computer system and server architecture, comprising:at least one storage device storing data; at least one user computer transmitting the user authorization and authentication information and a user request; and at least one server, connected to the at least one storage device and the at least one user computer, that generates the electronic ticket based on at least the authorization and authentication information, the authorization and authentication information is hashed to produce a signature, only the signature is encrypted to prevent unauthorized alteration of the unencrypted authorization and authentication information, and the unencrypted authorization and authentication information and the encrypted signature are concatenated.
  • 17. A method for using an electronic ticket generated on a distributed computer system and server architecture for verifying user authorization and authentication to provide a session and a state environment, comprising the steps of:providing a data packet having information based on at least authorization and authentication information to at least a first server connectable to the distributed computer system and server architecture; producing a signature from the at least first server by hashing at least the authorization and authentication information; encrypting only the signature using the at least first server to prevent unauthorized alteration of the unencrypted information in the data packet; concatenating the unencrypted information in the data packet using the at least first server with the encrypted signature to produce the electronic ticket; and transmitting the electronic ticket over the computer system in a non-secured environment.
  • 18. A distributed computer system and server architecture for transmitting an electronic ticket used for verifying user authorization and authentication on a transaction by transaction basis to provide a session and a state environment over the distributed computer system and server architecture, comprising:at least one storage device storing data; at least one user computer transmitting the user authorization and authentication information and a user transaction; and at least one server, connectable to the at least one storage device and the at least one user computer, generating the electronic ticket based on at least the authorization and authentication information and transmitting the electronic ticket to the user, wherein the electronic ticket is transmitted with each user transaction to provide the session and the state environment.
  • 19. A method for using an electronic ticket for verifying user authorization to provide a session and a state environment on a transaction by transaction basis, comprising the steps of:generating the electronic ticket based on at least the user authorization and authentication information; transmitting the electronic ticket with each user transaction; and verifying the user authorization and authentication to provide the session and the state environment for each user transaction.
US Referenced Citations (9)
Number Name Date Kind
5481720 Loucks et al. Jan 1996 A
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6073241 Rosenberg et al. Jun 2000 A
Foreign Referenced Citations (1)
Number Date Country
0 695 985 Feb 1996 EP
Non-Patent Literature Citations (3)
Entry
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