Automated peer-to-peer file distribution

• US 8,150,987 B2
• Filed: 01/30/2006
• Issued: 04/03/2012
• Est. Priority Date: 01/30/2006
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Murphy, Elissa E. S., Waite, Ryan W. J., Garms, Jason, Cavit, Douglas S., Rohlfsen, Bo J.
• Primary Examiner(s): Pwu, Jeffrey
• Assistant Examiner(s): MUSA, ABDELNABI O
• Application Number:
  US11/275,823
• Publication Number:
  US 20070180078A1
• Time in Patent Office: 2,255 Days
• Field of Search: 709/230, 709/228, 709/229, 709/231, 709/232
• US Class Current: 709/230
• CPC Class Codes: H04L 63/123 received data contents, e.g. message integrity
• CPC Class Codes: H04L 63/126 the source of the received data
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/1023 based on a hash applied to IP addresses or costs
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04L 67/1057 involving pre-assessment of levels of reputation of peers
• CPC Class Codes: H04L 67/1061 using node-based peer discovery mechanisms static access to replicated servers H04L67/1006; service discovery H04L67/51

Abstract

Automated file distribution is described. A member of a peer-to-peer network receives from a file server, a file to be distributed. The file is then distributed via the peer-to-peer network to other members of the peer-to-peer network. Members of the peer-to-peer network can choose whether or not to receive a file from another member based on a trust level or reputation associated with the member. The trust level may be based, at least in part, on a number of degrees of separation between the members. Furthermore the file is verified, for example, by validating a digital signature associated with the file.

Claims

1. A method, implemented at least in part by a computer, the method comprising:

establishing communication through a peer-to-peer network, between the computer and members of the peer-to-peer network, whereby the computer is a peer member of the peer-to-peer network, wherein each particular member of the peer-to-peer network, including the computer, has an associated social network list that identifies other members of the peer-to-peer network that are fully trusted by the particular member of the peer-to-peer network;

determining through communication between the computer and members of the peer-to-peer network, that a particular file is available through the peer-to-peer network from a plurality of members of the peer-to-peer network;

selecting a trusted member of the peer-to-peer network based, at least in part, on determining if a member of the peer-to-peer network that has the file is on the social network list associated with the computer;

if a member of the peer-to-peer network is on the social network list associated with the computer, receiving the particular file through the peer-to-peer network from the member of the peer-to-peer network that is on the social network list associated with the computer;

if a member of the peer-to-peer network is not on the social network list associated with the computer;

ascertaining a degree of separation from the computer for each member in the peer-to-peer network that has the file available for distribution;

for each member in the peer-to-peer network that has the file available for distribution, ascertaining a number of other members of the peer-to-peer network that fully trust the member that has the file available for distribution as evidenced by the member that has the file available for distribution being listed in the social network lists associated with the other members of the peer-to-peer network;

assigning a trust level for each member in the peer-to-peer network that has the file available for distribution, wherein the trust level is based upon the ascertained degree of separation from the computer and the number of other members of the peer-to-peer network that fully trust the member that has the file available for distribution; and

selecting a particular member of the peer-to-peer network that has a highest assigned trust level; and

receiving the particular file from the particular member that has the highest assigned trust level through the peer-to-peer network.

2. The method as recited in claim 1, wherein selecting the trusted member of the peer-to-peer network is further based, at least in part, on an automatically detected level of network traffic associated with the trusted member of the peer-to-peer network compared to an automatically detected level of network traffic associated with another particular member of the peer-to-peer network.

3. The method as recited in claim 1, wherein selecting the trusted member of the peer-to-peer network is further based, at least in part, on results of a network latency test.

4. The method as recited in claim 1, wherein selecting the trusted member of the peer-to-peer network is further based, at least in part, on a geographic location associated with the trusted member of the peer-to-peer network compared to a geographic location associated with another particular member of the peer-to-peer network.

5. The method as recited in claim 1, further comprising, based on the selecting, submitting through the peer-to-peer network, a request for the file, wherein the request is submitted directly to the trusted member of the peer-to-peer network.

6. The method as recited in claim 1, further comprising validating the file that is received.

7. The method as recited in claim 6, wherein validating the file that is received comprises verifying a digital signature associated with the file.

8. The method as recited in claim 1, wherein the trust level associated with each member of the peer-to-peer network is further based on reputation data obtained from a reputation service.

9. The method as recited in claim 1, wherein the trust level associated with each member of the peer-to-peer network is further based on a certificate associated with each member of the peer-to-peer network.

10. A method, implemented at least in part by a computer, the method comprising:

receiving by a first member of a peer-to-peer network, a file to be distributed;

automatically sending notifications from the first member of the peer-to-peer network directly to other members of the peer-to-peer network based on each member'"'"'s trust rating where determining each member'"'"'s trust rating comprises;

ascertaining a degree of separation from the first member of the peer-to-peer network for each member of the peer-to-peer network;

ascertaining a number of times each member of the peer-to-peer network is listed in a social network list associated with each member of the peer-to-peer network, the social network list associated with a particular member of the peer-to-peer network identifying other members of the peer-to-peer network that are fully trusted by the particular member of the peer-to-peer network; and

assigning a trust level for each member of the peer-to-peer network, wherein the trust level is based upon the ascertained degree of separation and the number of times a particular member appears in a social network list associated with the members of the peer-to-peer network; and

distributing the file through the peer-to-peer network directly from the first member of the peer-to-peer network to at least one of the other members of the peer-to-peer network.

11. The method as recited in claim 10, further comprising:

receiving a request for the file via the peer-to-peer network, wherein the request is received by the first member of the peer-to-peer network directly from a second member of the peer-to-peer network; and

distributing the file directly from the first member of the peer-to-peer network to the second member of the peer-to-peer network, via the peer-to-peer network in response to the request.

12. The method as recited in claim 10, further comprising the second member of the peer-to-peer network validating the received file by verifying a digital signature associated with the file.

13. The method as recited in claim 10, wherein the first member of the peer-to-peer network receives the file from a trusted member of the peer-to-peer network.

14. The method as recited in claim 10, wherein automatically sending notifications comprises sending notifications via the peer-to-peer network from the first member of the peer-to-peer network to each member of the peer-to-peer network whose assigned trust level exceeds a trust level threshold.

15. The method as recited in claim 14,

further comprising sending notifications via the peer-to-peer network from the first member of the peer-to-peer network to particular members of the peer-to-peer network whose assigned trust level exceeds a trust level threshold, wherein the particular members are separated from the first member of the peer-to-peer network by one degree of separation.

16. The method as recited in claim 10, wherein automatically sending notifications comprises:

sending notifications via the peer-to-peer network from the first member of the peer-to-peer network directly to members who have an assigned trust level that exceeds a trust level threshold of the peer-to-peer network and who have a zero-degree of separation from the first member, wherein the members of the peer-to-peer network having a zero-degree of separation are those members as identified in a peer-to-peer network contact list associated with the first member of the peer-to-peer network; and

selecting a particular member of the peer-to-peer network having a zero-degree of separation from the first member of the peer-to-peer network as identified in the contact list associated with the first member of the peer-to-peer network, and sending notifications via the peer-to-peer network from the first member of the peer-to-peer network directly to members of the peer-to-peer network identified in a contact list associated with the particular member of the peer-to-peer network having a zero-degree of separation from the first member of the peer-to-peer network whose assigned trust level exceeds the trust level threshold; and

the method further comprises the other members of the peer-to-peer network validating the received file by verifying a digital signature associated with the file.