Method and apparatus for time synchronization in a network data processing system
First Claim
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1. A method for synchronizing time in a network data processing system comprising the data processing system implemented steps of:
- receiving a request for time synchronization at a target data processing system, wherein the request is received from a source data processing system;
placing a current target time at the target data processing system in a reply;
sending the reply to the source data processing system;
comparing a current source time from when the reply is received at the source data processing system to the current target time to generate a comparison;
generating a synchronization factor using the comparison; and
creating an authentication request, using the synchronization factor, which includes a set of user credentials and a time stamp for an authentication process at a system associated with the target system, wherein the user credentials are valid for a predetermined period of time.
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Abstract
A method, apparatus, and computer implemented instructions for synchronizing time in a network data processing system. A request for time synchronization is received at a target data processing system. A current target time at the target data processing system is placed in a reply. The reply is sent to the source data processing system. A current source time from when the reply is received at the source data processing system is compared to the current target time to generate a comparison. A synchronization factor is generated using the comparison.
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Citations
46 Claims
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1. A method for synchronizing time in a network data processing system comprising the data processing system implemented steps of:
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receiving a request for time synchronization at a target data processing system, wherein the request is received from a source data processing system;
placing a current target time at the target data processing system in a reply;
sending the reply to the source data processing system;
comparing a current source time from when the reply is received at the source data processing system to the current target time to generate a comparison;
generating a synchronization factor using the comparison; and
creating an authentication request, using the synchronization factor, which includes a set of user credentials and a time stamp for an authentication process at a system associated with the target system, wherein the user credentials are valid for a predetermined period of time. - View Dependent Claims (4, 5, 35)
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2-3. -3. (canceled)
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6-32. -32. (canceled)
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33. A computer program product in a computer readable medium for synchronizing time in a network data processing system, the computer program product comprising:
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first instructions for receiving a request for time synchronization at a target data processing system, wherein the request is received from a source data processing system;
second instructions for placing a current target time at the target data processing system in a reply;
third instructions for sending the reply to the source data processing system;
fourth instructions for comparing a current source time from when the reply is received at the source data processing system to the current target time to generate a comparison;
fifth instructions for generating a synchronization factor using the comparison; and
sixth instructions for creating an authentication request, using the synchronization factor, which includes a set of user credentials and a time stamp for an authentication process at a system associated with the target system, wherein the user credentials are valid for a predetermined period of time. - View Dependent Claims (36, 37, 38)
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34. (canceled)
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39. A data processing system comprising:
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a bus system;
a communications unit connected to the bus, wherein data is sent and received using the communications unit;
a memory connected to the bus system, wherein a set of instructions are located in the memory; and
a processor unit connected to the bus system, wherein the processor unit executes the set of instructions to receive a request for time synchronization at a target data processing system, wherein the request is received from a source data processing system;
place a current target time at the target data processing system in a reply;
send the reply to the source data processing system;
compare a current source time from when the reply is received at the source data processing system to the current target time to generate a comparison;
generate a synchronization factor using the comparison; and
create an authentication request, using the synchronization factor, which includes a set of user credentials and a time stamp for an authentication process at a system associated with the target system, wherein the user credentials are valid for a predetermined period of time. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46)
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Specification