Security expert: Sony computer network is still not safe

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Associate Professor, Department of Beijing Normal University Physics Xiaowen Li collaboration with colleagues at the University of Maryland, recently in the design of physical random number generators have made breakthrough progress. They designed a multichannel, independently of each other, high-speed physical random number generator, the use of ultra broadband optical noise of amplified spontaneous emission of led, through two non-overlapping the optical transmittance filters separate the two signals, each channel bit rate of up to 10G/s. Use this method at the same time produce more than one bit of random bits in parallel, greatly improved the rate of random number generators and upgrade capabilities.

Previously, people had made algebra (software) and based on cellular automata (hardware) parallel pseudo random number generator. Xiaowen Li proved for the first time, from a single optical noise sources, does not need an external optical amplification, and gain, you can also get multiple independent of the bit stream. To date, this is the first parallel output of physical random number system, to fast parallel physical random number generator based on chip has taken an important step. In addition, by using more filters, parallel output can reach at least 20 the number of channels, bit rate can reach new Trojan 200G/s.

Random number generators in the field of business and science have a wide range of applications, including secure key generation, communications, game theory and Monte Carlo calculations. High performance parallel computing demands made using parallel random number, commercialization of the program using a photoelectric device, it is easy to integrate into chip, high performance random number generator as a computer application.

Tags: computer, Expert, network, security, Still

Researchers say WebGL may have security problems

A security company said when they analyze the structure of WebGL technical vulnerability is discovered, this problem may cause the computer graphics chips in the process of implementation of code of an attacker, so that the user is guided to a malicious site, and the effect hazard data, privacy and system security threats. We recommend that you temporarily disable WebGL.

WebGL is currently a variety of new browser support, which lets the browser through the video card to work directly with 3D graphics, such as games, online map services.

WebGL development of main parties such as Google and Mozilla are not yet on this comment.

Tags: problems, Researchers, security, WebGL

Security experts say Sony PSN network using outdated software

According to foreign media reports, security experts said in a statement to Parliament on Wednesday, hacked Sony Playstation Network (PSN) network, and stealing more than $ 100 million before the user’s sensitive information, Sony PSN network in the Apache Web server is running outdated software. Purdue University (Purdue University) security experts Jien·sipafude (Gene Spafford) to Congress on Wednesday said security experts know that Sony uses out of Apache Web server software, the software is not install firewall.

Sony said it when companies from from hackers Anonymous denial of service attack (DoS) at the same time, some hackers the PSN network, steal sensitive data information.

Spafford said: “personally, I think, the system operator, failed to follow some good basic security and privacy practices, continue to use outdated, with a vulnerability in the software, and does not provide adequate training and support. ”

Anonymous in invention said in a statement this morning, Sony PSN network user-sensitive information, and credit card data being stolen and Anonymous does not have any “involved”, which is not Anonymous methods, Anonymous usually pay more attention to the operation of the company interrupts.

Unnamed hacker Sony PSN network in the April 19 attack, has forced Sony to close the networks. Sony PSN Network has more than 7,700 registered users. After the Station.com site hacker hacked into Sony, nightmare continues, hacker theft of 24.6 million accounts on the Station.com site information. On the whole, over 100 million account information could be stolen.

PSN network are Sony and Microsoft’s Xbox Live online gaming service, and other important services for online game service to compete. PSN store now has 948 games, and 4,000 for game plugin content.

Tags: Experts, network, outdated, security, software, using