Managing distribution of content using mobile agents in peer-topeer networks

• US 20040088348A1
• Filed: 10/31/2002
• Published: 05/06/2004
• Est. Priority Date: 10/31/2002
• Status: Active Grant

• Current Assignee: Oracle America, Inc. (Oracle Corporation)
• Original Assignee: Sun Microsystems Incorporated (Oracle Corporation)
• Inventors: Yeager, William J., Chen, Rita Y.
• Granted Patent: US 7,254,608 B2
• Time in Patent Office: Days
• US Class Current: 709/202
• CPC Class Codes: H04L 63/0823 using certificates cryptographic mechanisms or cryptographic arrangements for entity authentication involving certificates H04L9/3263
• CPC Class Codes: H04L 63/104 Grouping of entities
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04L 67/1042 using topology management mechanisms
• CPC Class Codes: H04L 67/1046 Joining mechanisms
• CPC Class Codes: H04L 67/1048 Departure or maintenance mechanisms
• CPC Class Codes: H04L 67/1068 Discovery involving direct consultation or announcement among potential requesting and potential source peers
• CPC Class Codes: H04L 67/34 involving the movement of software or configuration parameters network booting or remote initial program loading [RIPL] G06F9/4416

Abstract

Embodiments of a system and method for using mobile agents for managing distribution of content in peer-to-peer networks. An initiating peer node may launch a mobile agent including an itinerary of a group of peer nodes configured to receive and share content from a distributor. The mobile agent may visit the peer nodes on the itinerary to search for and collect information on distributor content stored on the visited peer nodes. The mobile agent may return the payload to the initiating peer node after completing the itinerary. In one embodiment, the mobile agent may include authentication information, and each visited peer node may access the authentication information to verify the mobile agent as authorized by the distributor. The initiating peer node may examine the information provided by the mobile agent to detect unauthorized copies of the distributor content.

Claims

1. A peer-to-peer network system, comprising:

a plurality of peer nodes;

an initiating peer node configured to launch a mobile agent in the peer-to-peer network, wherein the mobile agent includes an itinerary indicating a subset of the plurality of peer nodes to be visited by the mobile agent, wherein the subset of the plurality of peer nodes form a group of peer nodes configured to receive and share content from a distributor;

wherein the mobile agent is configured to visit one or more of the subset of the plurality of peer nodes indicated by the itinerary, collect information on distributor content stored on the one or more visited peer nodes, and provide the information on the distributor content to the initiating peer node; and

wherein the initiating peer node is further configured to examine the information on the distributor content provided by the mobile agent to detect unauthorized copies of the distributor content.

2. The peer-to-peer network system as recited in claim 1, wherein the mobile agent further includes authentication information, and wherein each of the subset of the plurality of peer nodes indicated by the itinerary is configured to:

receive the mobile agent from a previous peer node; and

access the authentication information to verify the mobile agent as authorized by the distributor to collect information on distributor content stored on the peer node.

3. The peer-to-peer network system as recited in claim 2, wherein the authentication information includes a signed certificate.

4. The peer-to-peer network system as recited in claim 1, wherein, to collect information on distributor content stored on the one or more visited peer nodes, the mobile agent is further configured to:

search content on each visited peer node to locate distributor content on the peer node; and

store information on distributor content located on the visited peer node in a payload of the mobile agent.

5. The peer-to-peer network system as recited in claim 4, wherein, to provide the information on the distributor content to the initiating peer node, the mobile agent is further configured to return the payload to the initiating peer node after visiting the one or more of the subset of the plurality of peer nodes indicated by the itinerary.

6. The peer-to-peer network system as recited in claim 1, wherein, to launch a mobile agent in the peer-to-peer network, the initiating peer node is further configured to send the mobile agent to a first peer node indicated by the itinerary.

7. The peer-to-peer network system as recited in claim 1, wherein each of the subset of the plurality of peer nodes indicated by the itinerary is configured to:

receive the mobile agent from a previous peer node; and

send the mobile agent to a next peer node.

8. The peer-to-peer network system as recited in claim 7, wherein, to send the mobile agent to a next peer node, each of the subset of the plurality of peer nodes indicated by the itinerary is further configured to:

determine if the mobile agent has completed the itinerary;

if the mobile agent has not completed the itinerary, send the mobile agent to a next peer node indicated by the itinerary; and

if the mobile agent has completed the itinerary, return the mobile agent to the initiating peer node.

9. The peer-to-peer network system as recited in claim 1, wherein peer nodes on the network are configured to implement a peer-to-peer environment according to a peer-to-peer platform comprising one or more peer-to-peer platform protocols for enabling the peer nodes to discover each other, communicate with each other, form groups of peer nodes, share content, and send and receive mobile agents in the peer-to-peer environment.

10. A peer node, comprising:

a processor;

a memory comprising program instructions, wherein the program instructions are executable by the processor to launch a mobile agent in the peer-to-peer network, wherein the mobile agent includes an itinerary indicating a subset of the plurality of peer nodes to be visited by the mobile agent, wherein the subset of the plurality of peer nodes form a group of peer nodes configured to receive and share content from a distributor;

wherein the mobile agent is configured to visit one or more of the subset of the plurality of peer nodes indicated by the itinerary, collect information on distributor content stored on the one or more visited peer nodes, and provide the information on the distributor content to the peer node; and

wherein the program instructions are further executable by the processor to examine the information on the distributor content provided by the mobile agent to detect unauthorized copies of the distributor content.

11. The peer node as recited in claim 10, wherein the mobile agent further includes authentication information to verify the mobile agent as authorized by the distributor to collect information on distributor content stored on the visited peer nodes.

12. The peer node as recited in claim 11, wherein the authentication information includes a signed certificate.

13. The peer node as recited in claim 10, wherein, to collect information on distributor content stored on the one or more visited peer nodes, the mobile agent is further configured to:

search content on each visited peer node to locate distributor content on the peer node; and

store information on distributor content located on the visited peer node in a payload of the mobile agent.

14. The peer node as recited in claim 13, wherein, to provide the information on the distributor content to the peer node, the mobile agent is further configured to return the payload to the peer node after visiting the one or more of the subset of the plurality of peer nodes indicated by the itinerary.

15. The peer node as recited in claim 10, wherein, to launch a mobile agent in the peer-to-peer network, the program instructions are further executable by the processor to send the mobile agent to a first peer node indicated by the itinerary.

16. The peer node as recited in claim 10, wherein the peer node is configured to participate in a peer-to-peer environment with other peer nodes according to a peer-to-peer platform comprising one or more peer-to-peer platform protocols for enabling the peer nodes to discover each other, communicate with each other, form groups of peer nodes, share content, and send and receive mobile agents to and from other peer nodes in the peer-to-peer environment.

17. A method, comprising:

an initiating peer node in a peer-to-peer network launching a mobile agent in the peer-to-peer network, wherein the mobile agent includes an itinerary indicating a subset of the plurality of peer nodes to be visited by the mobile agent, wherein the subset of the plurality of peer nodes form a group of peer nodes configured to receive and share content from a distributor;

the mobile agent visiting one or more of the subset of the plurality of peer nodes indicated by the itinerary;

the mobile agent collecting information on distributor content stored on the one or more visited peer nodes;

providing the information on the distributor content to the initiating peer node; and

the initiating peer node examining the information on the distributor content provided by the mobile agent to detect unauthorized copies of the distributor content.

18. The method as recited in claim 17, wherein the mobile agent further includes authentication information, the method further comprising:

one of the subset of the plurality of peer nodes indicated by the itinerary receiving the mobile agent from a previous peer node; and

the one of the subset of the plurality of peer nodes accessing the authentication information to verify the mobile agent as authorized by the distributor to collect information on distributor content stored on the one of the subset of the plurality of peer nodes.

19. The method as recited in claim 18, wherein the authentication information includes a signed certificate.

20. The method as recited in claim 17, wherein said collecting information on distributor content stored on the one or more visited peer nodes comprises:

searching content on each visited peer node to locate distributor content on the peer node; and

storing information on distributor content located on the peer node in a payload of the mobile agent.

21. The method as recited in claim 20, wherein said providing the information on the distributor content to the initiating peer node comprises the mobile agent returning the payload to the initiating peer node after visiting the one or more of the subset of the plurality of peer nodes indicated by the itinerary.

22. The method as recited in claim 17, wherein said launching a mobile agent in the peer-to-peer network comprises the initiating peer node sending the mobile agent to a first peer node indicated by the itinerary.

23. The method as recited in claim 17, wherein the mobile agent visiting one or more of the subset of the plurality of peer nodes indicated by the itinerary comprises:

one of the subset of the plurality of peer nodes indicated by the itinerary receiving the mobile agent from a previous peer node; and

the of the subset of the plurality of peer nodes sending the mobile agent to a next peer node.

24. The method as recited in claim 23, wherein said sending the mobile agent to a next peer node comprises:

the of the subset of the plurality of peer nodes determining if the mobile agent has completed the itinerary;

if the mobile agent has not completed the itinerary, the of the subset of the plurality of peer nodes sending the mobile agent to a next peer node indicated by the itinerary; and

if the mobile agent has completed the itinerary, the of the subset of the plurality of peer nodes returning the mobile agent to the initiating peer node.

25. The method as recited in claim 17, wherein peer nodes in the peer-to-peer network are configured to implement a peer-to-peer environment according to a peer-to-peer platform comprising one or more peer-to-peer platform protocols for enabling the peer nodes to discover each other, communicate with each other, form groups of peer nodes, share content, and send and receive mobile agents in the peer-to-peer environment.

26. A computer-accessible medium comprising program instructions, wherein the program instructions are configured to implement:

an initiating peer node in a peer-to-peer network launching a mobile agent in the peer-to-peer network, wherein the mobile agent includes an itinerary indicating a subset of the plurality of peer nodes to be visited by the mobile agent, wherein the subset of the plurality of peer nodes form a group of peer nodes configured to receive and share content from a distributor;

the mobile agent visiting one or more of the subset of the plurality of peer nodes indicated by the itinerary;

the mobile agent collecting information on distributor content stored on the one or more visited peer nodes;

providing the information on the distributor content to the initiating peer node; and

the initiating peer node examining the information on the distributor content provided by the mobile agent to detect unauthorized copies of the distributor content.

27. The computer-accessible medium as recited in claim 26, wherein the mobile agent further includes authentication information, and wherein the program instructions are further configured to implement:

one of the subset of the plurality of peer nodes indicated by the itinerary receiving the mobile agent from a previous peer node; and

the one of the subset of the plurality of peer nodes accessing the authentication information to verify the mobile agent as authorized by the distributor to collect information on distributor content stored on the one of the subset of the plurality of peer nodes.

28. The computer-accessible medium as recited in claim 27, wherein the authentication information includes a signed certificate.

29. The computer-accessible medium as recited in claim 26, wherein, in said collecting information on distributor content stored on the one or more visited peer nodes, the program instructions are further configured to implement:

searching content on each visited peer node to locate distributor content on the peer node; and

storing information on distributor content located on the peer node in a payload of the mobile agent.

30. The computer-accessible medium as recited in claim 29, wherein, in said providing the information on the distributor content to the initiating peer node, the program instructions are further configured to implement the mobile agent returning the payload to the initiating peer node after visiting the one or more of the subset of the plurality of peer nodes indicated by the itinerary.

31. The computer-accessible medium as recited in claim 26, wherein, in said launching a mobile agent in the peer-to-peer network, the program instructions are further configured to implement the initiating peer node sending the mobile agent to a first peer node indicated by the itinerary.

32. The computer-accessible medium as recited in claim 26, wherein, in the mobile agent visiting one or more of the subset of the plurality of peer nodes indicated by the itinerary, the program instructions are further configured to implement:

one of the subset of the plurality of peer nodes indicated by the itinerary receiving the mobile agent from a previous peer node; and

the of the subset of the plurality of peer nodes sending the mobile agent to a next peer node.

33. The computer-accessible medium as recited in claim 32, wherein, in said sending the mobile agent to a next peer node, the program instructions are further configured to implement:

the of the subset of the plurality of peer nodes determining if the mobile agent has completed the itinerary;

if the mobile agent has not completed the itinerary, the of the subset of the plurality of peer nodes sending the mobile agent to a next peer node indicated by the itinerary; and

if the mobile agent has completed the itinerary, the of the subset of the plurality of peer nodes returning the mobile agent to the initiating peer node.

34. The computer-accessible medium as recited in claim 26, wherein peer nodes in the peer-to-peer network are configured to implement a peer-to-peer environment according to a peer-to-peer platform comprising one or more peer-to-peer platform protocols for enabling the peer nodes to discover each other, communicate with each other, form groups of peer nodes, share content, and send and receive mobile agents in the peer-to-peer environment.