US 8,510,548 B1Granted

Method and discovery system for discovering encrypted peer-to-peer (EP2P) nodes associated with a particular EP2P network

AssigneeReVera Networks Inc.

InventorsAndriy Markov, Dmytro Kukulniak, Bogdan Materna

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Abstract

A method and a discovery system are provided for discovering encrypted peer-to-peer (EP2P) nodes associated with a particular EP2P network. An EP2P connection request associated with the EP2P network is sent to each of a plurality of initial IP address and port number combinations. If an EP2P connection response associated with the EP2P network is received from a particular initial IP address and port number combination, it is determined to belong to an initial EP2P node associated with the EP2P network. An EP2P discovery request associated with the EP2P network is then sent to the particular initial IP address and port number combination, and an EP2P discovery response associated with the EP2P network is received. If the EP2P discovery response includes one or more new IP address and port number combinations, they are determined to belong to one or more new EP2P nodes associated with the EP2P network.

Claims20

Dependent claims

A discovery system for discovering encrypted peer-to-peer (EP2P) nodes associated with a particular EP2P network, embodied in one or more non-transitory computer-readable storage media and executable by one or more processors, comprising:

said one or more processors;
a database including:
node information for discovered EP2P nodes associated with the particular EP2P network, wherein the node information for each discovered EP2P node includes an IP address and port number combination, a status, and a relationship;
and
one or more discovery agents, each discovery agent including:
a port scanner module for receiving one or more initial IP addresses, each having a plurality of port numbers, for sending an EP2P connection request associated with the particular EP2P network to each initial IP address and port number combination, for if a response is received from a particular initial IP address and port number combination, determining whether the response is an EP2P connection response associated with the particular EP2P network, for if the response is determined to be an EP2P connection response associated with the particular network, determining that the particular initial IP address and port number combination belongs to an initial EP2P node associated with the particular EP2P network, having an active status, wherein for storing the particular initial IP address and port number combination of the initial EP2P node in the database, and for storing the active status of the initial EP2P node in the database;
and
a node discovery module for receiving the particular initial IP address and port number combination from the port scanner module, for sending an EP2P discovery request associated with the particular EP2P network to the particular initial IP address and port number combination, for receiving an EP2P discovery response associated with the particular EP2P network from the initial IP address and port number combination, for determining whether the EP2P discovery response includes one or more new IP address and port number combinations, for if the EP2P discovery response includes one or more new IP address and port number combinations, extracting the one or more new IP address and port number combinations from the EP2P discovery response and determining that the one or more new IP address and port number combinations belong to one or more new EP2P nodes associated with the particular EP2P network, each having an unknown status and each having a relationship to the initial EP2P node, wherein for storing the one or more new IP address and port number combinations of the one or more new EP2P nodes in the database, for storing the unknown status of each new EP2P node in the database, and for storing the relationship of each new EP2P node to the initial EP2P node in the database.

5 more elements

A method of discovering EP2P nodes associated with a particular EP2P network, executed by one or more processors comprising:

1) receiving, by said one or more processors, one or more initial IP addresses, each having a plurality of port numbers;
2) sending an EP2P connection request associated with the particular EP2P network to each initial IP address and port number combination;
3) if a response is received from a particular initial IP address and port number combination, determining whether the response is an EP2P connection response associated with the particular EP2P network;
4) if the response is determined to be an EP2P connection response associated with the particular network, determining that the particular initial IP address and port number combination belongs to an initial EP2P node associated with the particular EP2P network, having an active status;
5) sending an EP2P discovery request associated with the particular EP2P network to the particular initial IP address and port number combination;
6) receiving an EP2P discovery response associated with the particular EP2P network from the particular initial IP address and port number combination;
7) determining whether the EP2P discovery response includes one or more new IP address and port number combinations;
8) if the EP2P discovery response includes one or more new IP address and port number combinations, extracting the one or more new IP address and port number combinations from the EP2P discovery response and determining that the one or more new IP address and port number combinations belong to one or more new EP2P nodes associated with the particular EP2P network, each having an unknown status and each having a relationship to the initial EP2P node;
sending an EP2P connection request associated with the particular EP2P network to each new IP address and port number combination;
if a response is received from a particular new IP address and port number combination, determining whether the response is an EP2P connection response associated with the particular EP2P network;
and if the response is determined to be an EP2P connection response associated with the particular EP2P network, determining that a particular new EP2P node to which the particular new IP address and port number combination belongs has an active status.

8 more elements

A method of discovering EP2P nodes associated with a particular EP2P network, executed by one or more comprising:

1) receiving, by said one or more processors, one or more initial IP addresses, each having a plurality of port numbers;
2) sending an EP2P connection request associated with the particular EP2P network to each initial IP address and port number combination;
3) if a response is received from a particular initial IP address and port number combination, determining whether the response is an EP2P connection response associated with the particular EP2P network;
4) if the response is determined to be an EP2P connection response associated with the particular network, determining that the particular initial IP address and port number combination belongs to an initial EP2P node associated with the particular EP2P network, having an active status;
5) sending an EP2P discovery request associated with the particular EP2P network to the particular initial IP address and port number combination;
6) receiving an EP2P discovery response associated with the particular EP2P network from the particular initial IP address and port number combination;
7) determining whether the EP2P discovery response includes one or more new IP address and port number combinations;
8) if the EP2P discovery response includes one or more new IP address and port number combinations, extracting the one or more new IP address and port number combinations from the EP2P discovery response and determining that the one or more new IP address and port number combinations belong to one or more new EP2P nodes associated with the particular EP2P network, each having an unknown status and each having a relationship to the initial EP2P node;
and
9) analyzing the EP2P discovery response to identify a type of the initial EP2P node.

7 more elements

One or more non-transitory computer-readable storage media comprising instructions that, when executed by one or more processors, perform a method of discovering EP2P nodes associated with a particular EP2P network, the method comprising:

1) receiving one or more initial IP addresses, each having a plurality of port numbers;
2) sending an EP2P connection request associated with the particular EP2P network to each initial IP address and port number combination;
3) if a response is received from a particular initial IP address and port number combination, determining whether the response is an EP2P connection response associated with the particular EP2P network;
4) if the response is determined to be an EP2P connection response associated with the particular network, determining that the particular initial IP address and port number combination belongs to an initial EP2P node associated with the particular EP2P network, having an active status;
5) sending an EP2P discovery request associated with the particular EP2P network to the particular initial IP address and port number combination;
6) receiving an EP2P discovery response associated with the particular EP2P network from the particular initial IP address and port number combination;
7) determining whether the EP2P discovery response includes one or more new IP address and port number combinations;
8) if the EP2P discovery response includes one or more new IP address and port number combinations, extracting the one or more new IP address and port number combinations from the EP2P discovery response and determining that the one or more new IP address and port number combinations belong to one or more new EP2P nodes associated with the particular EP2P network, each having an unknown status and each having a relationship to the initial EP2P node;
sending an EP2P connection request associated with the particular EP2P network to each new IP address and port number combination;
if a response is received from a particular new IP address and port number combination, determining whether the response is an EP2P connection response associated with the particular EP2P network;
and
if the response is determined to be an EP2P connection response associated with the particular EP2P network, determining that a particular new EP2P node to which the particular new IP address and port number combination belongs has an active status.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/244,084Filed 23 Sep 2011 · us provisional application
Priority: 24 Sep 2010
Granted: 13 Aug 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04L 63/145
Countermeasures against malicious traffic: the attack involving the propagation of malware through the network, e.g. viruses, trojans or worms
H04L 63/0435
Wherein the data content is protected, e.g. by encrypting or encapsulating the payload: wherein the sending and receiving network entities apply…
H04L 67/104
In which an application is distributed across nodes in the network: peer-to-peer [P2P] networks
H04L 69/22
Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass:…

Family

Application61/386,059Us provisional application · filed 24 Sep 2010
Application61/386,063Us provisional application · filed 24 Sep 2010
Application61/386,068Us provisional application · filed 24 Sep 2010
Application61/386,074Us provisional application · filed 24 Sep 2010
US 8,510,548 B1This patent

From the US filing history. Foreign family members aren’t listed.