A flow processing facility, which uses a set of artificial neurons for pattern recognition, such as a self-organizing map, in order to provide security and protection to a computer or computer system supports unified threat management based at least in part on patterns relevant to a variety of types of threats that relate to computer systems, including computer networks. Flow processing for switching, security, and other network applications, including a facility that processes a data flow to address patterns relevant to a variety of conditions are directed at internal network security, virtualization, and web connection security. A flow processing facility for inspecting payloads of network traffic packets detects security threats and intrusions across accessible layers of the IP-stack by applying content matching and behavioral anomaly detection techniques based on regular expression matching and self-organizing maps. Exposing threats and intrusions within packet payload at or near real-time rates enhances network security from both external and internal sources while ensuring security policy is rigorously applied to data and system resources. Intrusion Detection and Protection (IDP) is provided by a flow processing facility that processes a data flow to address patterns relevant to a variety of types of network and data integrity threats that relate to computer systems, including computer networks.

Systems and methods for processing data flows

A plurality of computer nodes communicate using seemingly random Internet Protocol source and destination addresses. Data packets matching criteria defined by a moving window of valid addresses are accepted for further processing, while those that do not meet the criteria are quickly rejected. Improvements to the basic design include (1) a load balancer that distributes packets across different transmission paths according to transmission path quality; (2) a DNS proxy server that transparently creates a virtual private network in response to a domain name inquiry; (3) a large-to-small link bandwidth management feature that prevents denial-of-service attacks at system chokepoints; (4) a traffic limiter that regulates incoming packets by limiting the rate at which a transmitter can be synchronized with a receiver; and (5) a signaling synchronizer that allows a large number of nodes to communicate with a central node by partitioning the communication function between two separate entities.

Agile network protocol for secure communications with assured system availability

A system and method for maintaining security in a distributed computing environment comprises a policy manager located on a server for managing and distributing a security policy, and an application guard located on a client for managing access to securable components as specified by the security policy. In the preferred embodiment, a global policy specifies access privileges of the user to securable components. The policy manager may then preferably distribute a local client policy based on the global policy to the client. An application guard located on the client then manages access to the securable components as specified by the local policy.

System and method for maintaining security in a distributed computer network

The present invention is directed to systems and methods for detecting unsolicited and threatening communications and communicating threat information related thereto. Threat information is received from one or more sources; such sources can include external security databases and threat information data from one or more application and/or network layer security systems. The received threat information is reduced into a canonical form. Features are extracted from the reduced threat information; these features in conjunction with configuration data such as goals are used to produce rules. In some embodiments, these rules are tested against one or more sets of test data and compared against the same or different goals; if one or more tests fail, the rules are refined until the tests succeed within an acceptable margin of error. The rules are then propagated to one or more application layer security systems.

Systems and methods for message threat management

Disclosed herein are methods, systems, and apparatuses to enable subscribers of mobile wireless communication devices to view, research, select and customize service plans; to create and manage device groups, share and set permission controls for service plans among devices in device groups; to manage communication services through graphical user interfaces; to sponsor and promote service plans; and to design, manage, and control communication services through application programming interfaces.

Service Plan Design, User Interfaces, Application Programming Interfaces, and Device Management

A method and system for implementing network policy is described. The method involves storing policy data using certificates using a certificate database server. Upon retrieval, a policy is then validated as properly certified prior to use. When a policy is not validated, it indicates tampering or improper policy data entry. When policy data is successfully validated, the policy is implemented.

Method and system for secure network policy implementation

Methods and systems for secure communications are provided. Secure end-to-end connections are established as separate multiple secure connections, illustratively between a first system and an intermediate system and between a second system and an intermediate system. The multiple secure connections may be bound, by binding Internet Protocol Security Protocol (IPSec) Security Associations (SAs) for the multiple connections, for example, to establish the end-to-end connection. In the event of a change in operating conditions which would normally require the entire secure connection to be re-established, only one of the multiple secure connections which form the end-to-end connection is re-established. Separation of end-to-end connections in this manner may reduce processing resource requirements and latency normally associated with re-establishing secure connections.

Secure communication methods and systems

A method and system for providing routing information for use in virtual private networks is disclosed. The method supports a variety of different secure network topologies. According to the method a static map is generated including information on each static gateway and resources accessible therethrough. The map also contains security information for accessing and authenticating a gateway.

Method of using static maps in a virtual private network

An impersonation detection system for a wireless node of a wireless communication network is described. The system comprises an intrusion detection module for correlating the original data frames transmitted by the wireless node with incoming data frames received over the air interface. The wireless node is connected to the intrusion detection module over a secure link, for receiving a copy of the original data frames. A method for detecting impersonation based attacks at a wireless node is also disclosed.

Mechanism for detection of attacks based on impersonation in a wireless network

A system for ciphering data for transmission by a communication device is provided. The system includes a memory device having a memory buffer a first access port connected to the memory buffer and a second access port connected to the memory buffer. The system also has a data processing processor connected to the first access port via a first bus and a ciphering processor connected to the second access port via a second bus. The first access port and the second access port each provide mutually independent access to the memory buffer. The second bus is not connected to the first bus. The data processing processor is adapted to receive the data and provide the data to the memory buffer over the first bus. The ciphering processor is adapted to retrieve the data from the memory buffer over the second bus, generate ciphered data from the data, generate integrity check information for the ciphered data using the data and provide the ciphered data to the memory buffer over the second bus.

Andrew Robison

Papers

Method and system for secure network policy implementation

Secure communication methods and systems

Method of using static maps in a virtual private network

Mechanism for detection of attacks based on impersonation in a wireless network

System and method for ciphering data