Nicira, Inc.

Daniel G Wing

Dexiang Wang

Wenyi Jiang

Amit Chopra

Amit Vasant Patil

Vijay Ganti

Bin Qian

Christopher Corde

Peixiao Lin

Sanal Pillai

Sanjay Sanghavi

A first host receives a packet from a first compute node for a second compute node of a second host. The payload is larger than a maximum transmission unit size. The first packet is encapsulated with an outer header. The first host analyzes a length of at least a portion of the outer header in determining a size of an encrypted segment of the payload. Then, the first host forms a plurality of packets where each packet in the packets includes an encrypted segment of the payload, a respective encryption header, and a respective authentication value. The payload of the first packet is segmented to form a plurality of encrypted segments based on the size. The first host sends the packets to the second host and receives an indication that a packet was not received. A second packet including the encrypted segment is sent to the second compute node.

Segmentation of encrypted segments in networks

Example methods are provided for secure communication protocol processing in a network environment. The method may comprise, in response to detecting a first transport protocol packet that is addressed from a first endpoint to a second endpoint and includes unencrypted payload data and a first sequence number, generating and sending a first secure communication protocol packet that includes encrypted payload data and a second sequence number. The method may also comprise, in response detecting a second transport protocol packet that includes the first sequence number, determining that the second transport protocol packet is a retransmission of the first transport protocol packet. The method may further comprise generating and sending a second secure communication protocol packet that includes the second sequence number associated with the first sequence number.

Secure communication protocol processing

A computer security system provides for auto-populating process-connection whitelists using process wildcarding and connection wildcarding. Process wildcarding involves grouping process-connection requests together in a process* group without regard to the presence of distinct process arguments; in contrast, some process-connection requests may be separated both by process and by argument into process&#x25cf;argument groups. The process-connection requests may then be analyzed on a group-by-group basis to determine which processes can be mapped to wildcarded connection in a respective process-connection whitelist.

Automatic whitelisting using wildcarding

A security system for a customer computer site includes a cloud-based manager (CBM) and on-site components. The on-site components include a manager appliance, guest agents of the CBM installed within respective virtual machines, and host agents of the CBM installed on hypervisors on which the virtual machines. The guest agents have a many-to-one relationship with the host agents, which have a many-to-one relationship with the appliance. In a scenario, many guest agents may generate alarms and send them to the host agents. Each host agent consolidates alarms across the different virtual machines it hosts and pushes the consolidated alarms to the manager appliance. The appliance batch processes the consolidated alarms across host agents, and pushes the batched alarms to the CBM, which deduplicates the alarms and notifies an administrator.

Security system for managed computer system

A security system for a distributed application obtains and, in effect, preserves provisioning information for the purpose of auto-populating whitelists used to protect the distributed application from intrusions. The provisioning information identifies allowable connections on a software-package level. Entries mapping processes to connection destinations are added to a whitelist if a process requesting a connection results from execution of an executable file installed as part of a software package for which the connection was allowed according to the provisioning information.

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Los Altos, CA, United States of America

Daniel G Wing