CENTRALLY ENHANCED PEER-TO-PEER RESOURCE SHARING METHOD AND APPARATUS

• US 20070055763A1
• Filed: 10/30/2006
• Published: 03/08/2007
• Est. Priority Date: 03/15/2002
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Subramanian, Ramesh, Sweeney, William, Goodman, Brian, Ronney, John
• Granted Patent: US 8,521,876 B2
• Time in Patent Office: Days
• US Class Current: 709/223
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks

Abstract

A peer-to-peer network has a server that maintains a list of addresses of clients connected to the peer-to-peer network. The server generates seed lists for each of the clients connected to the network from the server maintained list. The clients conduct peer-to-peer searches using the seed list provided by the server. The seed lists may be either randomly generated or generated to facilitate network objectives. The clients may periodically request seed list refreshing. The peer-to-peer network may further include authentication and authorization search security checks.

Claims

1. A method of operating a peer-to-peer network including a plurality of clients and a server, each of the clients having a unique client address, said method comprising the steps of:

receiving, from the server at a first of the clients, a first unique seed list comprising a first portion of the list of connected client addresses;

receiving, from the server at a second of the clients, a second unique seed list comprising a second portion of the list of connected client addresses, the first unique seed list including a second client address corresponding to the second client and the second unique seed list including a third client address corresponding to a third of the clients;

sending a search request from the first client to at least the second client by utilizing the first unique seed list; and

sending the search request from the second client to at least the third client by utilizing the second unique seed list.

2. The method according to claim 1, further comprising the steps of:

at the server, determining which of the clients is connected to the peer-to-peer network and generating the list of connected client addresses; and

at the server, generating the first and second unique seed lists from the list of connected client addresses.

3. The method according to claim 2, further comprising the steps of:

sending a connection signal from one of the clients to the server in response to the one client connecting to the peer-to-peer network; and

at the server, adding a newly connected client address corresponding to the one client to the list of connected client addresses.

4. The method according to claim 3, further comprising the step of, at the server, removing a disconnected client address from the list of connected client addresses in response to an absence of reception of an expected acknowledgement signal from a corresponding disconnected client.

5. The method according to claim 2,

wherein the first unique seed list includes a disconnected client, and

the method further comprises the step of, at the first client, removing the client address corresponding to the disconnected client from the first unique seed list in response to an absence of reception of an expected acknowledgement signal from the disconnected client.

6. The method according to claim 5, further comprising the step of sending, from the first client to the server, a request for a refreshed unique seed list in response to the step of removing the client address corresponding to the disconnected client from the first unique seed list.

7. The method according to claim 1,

wherein the first unique seed list includes a plurality of disconnected clients, and

the method further comprises the step of sending, from the first client to the server, a request for a refreshed unique seed list in response to an absence of reception of expected acknowledgement signals from the plurality of disconnected clients.

8. The method according to claim 1,

wherein the second client has a resource memory in which a plurality of resources are stored, and

the method further comprises the steps of:

at the second client, searching the resources within the resource memory in response to the search request; and

sending, from the second client to the first client, a second match signal indicative of a matching resource.

9. The method according to claim 8,

wherein at least one of the resources includes metadata indicative thereof, and

the step of searching the resources within the resource memory comprises searching the metadata of the at least one resource.

10. The method according to claim 8,

wherein the third client has a second resource memory in which a plurality of second resources are stored, and

the method further comprises the steps of:

at the third client, searching the second resources within the second resource memory in response to the search request; and

sending, from the third client to the first client, a third match signal indicative of a matching resource.

11. The method according to claim 10,

wherein the search request is initiated by the first client and includes the identification signal indicative of the first client, and

the step of searching the second resources within the second resource memory comprises selectively searching the second resources in response to the identification signal.

12. The method according to claim 11, further comprising the steps of:

sending, from the third client to and an external authentication process, the identification signal;

at the external authentication process, authenticating the identification signal by determining if the identification signal was originated by the first client; and

sending, from the external authentication process to the third client, an authentication signal in response to an affirmative authentication.

13. The method according to claim 12, wherein the step of searching the second resources within the second resource memory comprises selectively searching the second resources in response to the authentication signal.

14. A client in a peer-to-peer network that includes a server and a plurality of clients having searchable resources, each of the clients having a unique client address, the client comprising:

a seed list receiver for receiving and storing a unique seed list of connected client addresses, the unique seed list being received from the server;

a memory for storing a plurality of resources, each of the resources having at least one corresponding access attribute, and

a peer-to-peer network search dispatcher for forwarding a resource search request to connected client addresses from the seed list.

15. The client according to claim 14, wherein the resource search request includes a credentials signal indicative of an initiating client that initiates the resource search request.

16. The client according to claim 14, further comprising a search engine for selectively searching at least one of the resources in response to a comparison of the credentials signal and the at least one access attribute of each of the resources.

17. The client according to claim 15,

wherein the peer-to-peer network search dispatcher communicates the credential signal to an authorization process external to the client and receives at least one of a plurality of authorization signals in response, and

the client further comprises a search engine for selectively searching the resources in response to a comparison of the at least one of the authorization signals received from the external authorization process and the at least one access attribute of each of the resources.

18. A method on a client in a peer-to-peer network that includes a server and a plurality of clients having searchable resources, each of the clients having a unique client address, the method comprising the steps of:

receiving a unique seed list of connected client addresses from the server;

forwarding a resource search request to connected client addresses from the unique seed list; and

selectively searching at least one of a plurality of resource stored at the client,

wherein the resource search request includes a credentials signal indicative of an initiating client initiating the resource search request, and

19. The method according to claim 18, further comprising the steps of:

communicating the credential signal to an authorization process external to the client; and

receiving at least one of a plurality of authorization signals in response.

20. The method according to claim 18, wherein each of the resources stored at the client has at least one corresponding access attribute, and

the step of selectively searching comprises searching in response to a comparison of the received authorization signal and the at least one access attribute of each of the resources.