Apparatus and method for dynamically verifying information in a distributed system
First Claim
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1. A method for verifying data in a distributed system, comprising:
- determining whether a need exists to verify data;
transmitting a request for a verification object;
receiving from a remote device a response to the request including at least one of executable code or a reference to executable code;
determining whether the response includes a reference to executable code;
based on a determination that the response includes a reference to executable code, downloading the referenced executable code from a second remote device;
verifying the data by executing the executable code;
determining whether a need exists to verify additional data and whether the additional data can be verified by the executable code; and
based on the determination that a need exists to verify additional data and that the additional data can be verified by the executable code, verifying the additional data by executing the executable code without transmitting a new request for a verification object.
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Abstract
Use of a policy object for verification in a distributed system. A machine downloads a policy object containing a reference to code governing verification of data. The machine uses the reference to obtain the code and locally verify data or other information. As particular rules for the data change, the policy object may be updated to provide a reference to the code for the new rules when it is downloaded.
99 Citations
21 Claims
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1. A method for verifying data in a distributed system, comprising:
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determining whether a need exists to verify data; transmitting a request for a verification object; receiving from a remote device a response to the request including at least one of executable code or a reference to executable code; determining whether the response includes a reference to executable code; based on a determination that the response includes a reference to executable code, downloading the referenced executable code from a second remote device; verifying the data by executing the executable code; determining whether a need exists to verify additional data and whether the additional data can be verified by the executable code; and based on the determination that a need exists to verify additional data and that the additional data can be verified by the executable code, verifying the additional data by executing the executable code without transmitting a new request for a verification object. - View Dependent Claims (2)
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3. A method for verifying data in a distributed system, comprising:
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determining whether a need exists to verify data; transmitting a request for a verification object; receiving from a remote device the verification object in response to the request; determining whether the verification object includes a reference to executable code; based on the determination that the verification object includes a reference to executable code, downloading the referenced executable code from a second remote device; verifying the data by executing at least one of a method associated with the verification object and the executable code; determining whether a need exists to verify additional data and whether the additional data can be verified by at least one of the method and the executable code; and based on the determination that a need exists to verify additional data and that the additional data can be verified by at least one of the method and the executable code, verifying the additional data by executing at least one of the method and the executable code without transmitting a new request for a verification object. - View Dependent Claims (4)
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5. A method for verifying data in a distributed system, comprising:
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determining whether a need exists to verify data; transmitting a request for a verification object; receiving from a remote device the verification object in response to the request, the verification object exhibiting executable code; selectively determining from the verification object whether to obtain the executable code from a repository of executable code and, based on a result of this determination, obtaining the executable code from the repository; verifying the data by executing the executable code; determining whether a need exists to verify additional data; and based on the determination that a need exists to verify additional data, verifying the additional data by executing the executable code without transmitting a new request for a verification object. - View Dependent Claims (6, 7)
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8. An apparatus, comprising:
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a memory storing a program; and a processor responsive to the program to determine whether a need exists to verify data, transmit a request for a verification object, receive from a remote device a response to the request including at least one of executable code or a reference to executable code, download the referenced executable code from a second remote device, verify the data by executing the executable code, determine whether a need exists to verify additional data and whether the executable code is suitable for purposes of verifying the additional data, and based on the determination that a need exists to verify additional data and that the executable code is suitable for purposes of verifying the additional data, verify the additional data by executing the executable code without transmitting a new request for a verification object. - View Dependent Claims (9)
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10. An apparatus, comprising:
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a memory storing a program; and a processor responsive to the program to determine whether a need exists to verify data, transmit a request for a verification object, receive from a remote device the verification object in response to the request, determine whether the verification object includes a reference to executable code, based on the determination that the verification object includes a reference to executable code, download the referenced executable code from a second remote device, verify the data by executing at least one of a method associated with the verification object and the executable code, determine whether a need exists to verify additional data and whether at least one of the method and the executable code is suitable for purposes of verifying the additional data, and based on the determination that a need exists to verify additional data and that at least one of the method and the executable code is suitable for purposes of verifying the additional data, verify the additional data by executing at least one of the method and the executable code without transmitting a new request for a verification object. - View Dependent Claims (11)
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12. An apparatus, comprising:
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a memory storing a program; and a processor responsive to the program to determine whether a need exists to verify data, transmit a request for a verification object, receive from a remote device the verification object in response to the request, the verification object exhibiting executable code, selectively determine from the verification object whether to obtain the executable code from a repository of executable code and, based on a result of this determination, obtaining the executable code from the repository, verify the data by executing the executable code, determine whether a need exists to verify additional data, and based on the determination that a need exists to verify additional data, verify the additional data by executing the executable code without transmitting a new request for a verification object. - View Dependent Claims (13, 14)
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15. A computer-readable medium containing instructions for causing a processor to perform a method for verifying data in a distributed system, the method comprising:
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determining whether a need exists to verify data; transmitting a request for a verification object; receiving from a remote device a response to the request including at least one of executable code or a reference to executable code; determining whether the response includes the reference to executable code; based on the determination that the response includes the reference to executable code, downloading the referenced executable code from a second remote device; verifying the data by executing the executable code; determining whether a need exists to verify additional data and whether the executable code is suitable for purposes of verifying the additional data; and based on the determination that a need exists to verify additional data and that the executable code is suitable for purposes of verifying the additional data, verifying the additional data by executing the executable code without transmitting a new request for a verification object. - View Dependent Claims (16)
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17. A computer-readable medium containing instructions for causing a processor to perform a method for verifying data in a distributed system, the method comprising:
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determining whether a need exists to verify data; transmitting a request for a verification object; receiving from a remote device the verification object in response to the request; determining whether the verification object includes a reference to executable code; based on the determination that the verification object includes a reference to executable code, downloading the referenced executable code from a second remote device; verifying the data by executing at least one of a method associated with the verification object and the executable code; determining whether a need exists to verify additional data and whether at least one of the method and the executable code is suitable for purposes of verifying the additional data; and based on the determination that a need exists to verify additional data and that at least one of the method and the executable code is suitable for purposes of verifying the additional data, verifying the additional data by executing at least one of the method and the executable code without transmitting a new request for a verification object. - View Dependent Claims (18)
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19. A computer-readable medium containing instructions for causing a processor to perform a method for verifying data in a distributed system, the method comprising:
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determining whether a need exists to verify data; transmitting a request for a verification object; receiving from a remote device the verification object in response to the request, the verification object exhibiting executable code; selectively determining from the verification object whether to obtain the executable code from a repository of executable code and, based on a result of this determination, obtaining the executable code from the repository; verifying the data by executing the executable code; determining whether a need exists to verify additional data; and based on the determination that a need exists to verify additional data, verifying the additional data by executing the executable code without transmitting a new request for a verification object. - View Dependent Claims (20, 21)
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Specification