Dell Products Inc.

Aladdin Knowledge Systems Ltd.

Weijun Li

Bin Xu

YuLing Chen

Bingjun Li

Julie Shur-Meih Hsu

David K Lam

Kyle Smith

Dalun Bao

Jim Sesma

Robert Freeman

A system and method for management of network monitoring information includes a non-transient memory and one or more processors coupled to the non-transient memory and configured to read instructions from the non-transient memory to cause the information handling system to perform operations, The operations include collecting real-time network monitoring information from one or more network switching units, storing the collected real-time network monitoring information in a data storage system using a first column family, periodically aggregating the collected real-time network monitoring information to generate corresponding history information, storing the aggregated history information in the data storage system using a second column family different from the first column family, retrieving information from the data storage system based on one or more first queries, the stored real-time network monitoring information, and the stored aggregated history information, and providing the retrieved information for use during network monitoring.

System and method for management of network monitoring information

A system and method for management of network monitoring information includes a data collector for collecting real-time network information from network switching units, an aggregator for periodically aggregating the collected real-time network information and generating corresponding history information, a preprocessor for periodically determining results for first queries based on the collected real-time network information and the history information, a data storage system, and a data retriever for retrieving information from the data storage system. The data storage system stores the collected real-time network information, the aggregated history information, and the preprocessed results of the first queries. The data storage system also periodically purges the stored real-time information based on a first time-to-live value and the stored history information based on a second time-to-live value. The information is retrieved based on the stored real-time network and history information, the stored preprocessed results of the first queries, the first queries, and second queries different from the first queries.

A system for preventing accurate disassembly of computer code. Such code masking, referred to as 'obfuscation,' is useful to prevent unwanted parties from making copies of an original author's software, obtaining valuable information from the software for purposes of breaking into a program, stealing secrets, making derivative works, etc. The present invention uses assembly-language instructions so as to confuse the disassembler to produce results that are not an accurate representation of the original assembly code. In one embodiment, a method is provided where an interrupt, or software exception instruction, is used to mask several subsequent instructions. The instruction used can be any instruction that causes the disassembler to assume that one or more subsequent words, or bytes, are associated with the instruction. The method, instead, jumps directly to the bytes assumed associated with the instruction and executes those bytes for a different purpose. A preferred embodiment works with a popular Microsoft 'ASM' assembler language and &#x201c;DASM&#x201d; disassembler. The instructions used to achieve the obfuscation include &#x201c;INT&#x201d; instructions. Using this approach up to 17 bytes of obfuscation can be achieved with five instructions. Each instruction remains obfuscated until executed and returns to an obfuscated state afterwards.

System for obfuscating computer code upon disassembly

A system for permitting offline content playback and for managing the rights to one or more digital content files within a computer network. The system manages these rights by encrypting the content files to prevent unauthorized access to the files. Encryption is accomplished by using one or more keys which are associated with one or more segments of the content file. These keys enable an authorized user to decrypt and playback the content files at a subsequent time. When the keys are received, a license which specifies the rights of the user regarding the content files, is obtained by the end user system, and verified locally to permit the content playback.

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Sunnyvale, CA, United States of America

Weijun Li