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Category: Telecommunications Engineering

Investigation of paper-based electronics continues to advance

Figure 1: Portable paper solar cells based on foldable, lightweight, transparent, conductive cellulose nanofiber paper. Credit: CC-BY Macmillan Publishers Ltd Imagine folding up a paper-thin computer tablet like a newspaper. It sounds like something out of a science fiction movie, but such flexible electronics are moving closer to reality, according to a review in the journal Science and Technology of Advanced Materials. Paper that is transparent and conducts electricity could have widespread applications, including foldable computers, transparent touch screens, and…

SIDH in Go for quantum-resistant TLS 1.3

The Quantum Threat Most of today’s cryptography is designed to be secure against an adversary with enormous amounts of computational power. This means estimating how much work certain computations (such as factoring a number, or finding a discrete logarithm) require, and choosing cryptographic parameters based on our best estimate of how much work would be required to break the system. If it were possible to build a large-scale quantum computer, many of the problems whose difficulty we rely on for…

How a bunch of bird brains led to the development of touch screens

There was a time during World War II when pigeons almost became the next war heroes… until scientists at NIST grounded them — thanks to some other winged friends. Credit: NIST Did you know that the origin and development of touch screen technology can be directly tied to one of the world’s most famous behavioral scientists and a bunch of pigeons? This strange and fascinating part of science history is highlighted in the latest NISTory video from the National Institute…

Building a Distributed Work Queue with MySQL and RabbitMQ – Wealthfront Engineering Blog

Many of the daily processes at Wealthfront follow a similar pattern: they perform some operation for each of a large list of items. For example, we might have a daily process that performs some optimization for each active account. This type of process usually operates through some form of work queue, and in the past we’ve been able to use in-memory queues with error reporting or persistent queues operating on a single machine. However, as our client base grows and…

How Industry Collaboration Disrupted a DDoS Attack

Introduction On August 17th, 2017, multiple Content Delivery Networks (CDNs) and content providers were subject to significant attacks from a botnet dubbed WireX. The botnet is named for an anagram for one of the delimiter strings in its command and control protocol. The WireX botnet comprises primarily Android devices running malicious applications and is designed to create DDoS traffic. The botnet is sometimes associated with ransom notes to targets. A few days ago, Google was alerted that this malware was…

Researchers develop highly flexible, wearable display

OLEDs operating in fabrics. Credit: KAIST How do you feel when technology you saw in a movie is made into reality? Collaboration between the electrical engineering and the textile industries has made video screens and displays on clothing a reality. A research team led by Professor Kyung Cheol Choi at the School of Electrical Engineering presented wearable displays for applications including fashion, IT and healthcare. Integrating organic light-emitting diodes (OLEDs) into fabrics, the team developed the most highly flexible and…

IPv6 Technology that will save e-Commerce and IoT

The Internet is largely used today for communication and doing business. E-commerce is growing day by day as more companies join e-commerce in the light of the fact that the number of Internet users are increasing astonishingly. The Internet enables the users to shop from wherever they want, across the world. With an explosion of smart devices and Internet users, E-commerce movement is facing some serious challenges to maintain its standard and availability for all. Companies are always looking to…

Advancing Privacy Protection with the GDPR

A game-changer The road towards implementation of the new European GDPR (the General Data Protection Regulation) has been a long one, even though public awareness of its impact, especially outside of Europe, is only now really starting to take hold. This game-changing piece of EU legislation will require companies to fundamentally change how they process and use personal data (broadly defined) they receive from EU citizens, including through consent and data handling agreements with their customers, supply chains, and vendors. It…

Broken packets: IP fragmentation is flawed

As opposed to the public telephone network, the internet has a Packet Switched design. But just how big can these packets be? CC BY 2.0 image by ajmexico, inspired by This is an old question and the IPv4 RFCs answer it pretty clearly. The idea was to split the problem into two separate concerns: What is the maximum packet size that can be handled by operating systems on both ends? What is the maximum permitted datagram size that can be…

Why We Terminated Daily Stormer

Earlier today, Cloudflare terminated the account of the Daily Stormer. We’ve stopped proxying their traffic and stopped answering DNS requests for their sites. We’ve taken measures to ensure that they cannot sign up for Cloudflare’s services ever again. Our terms of service reserve the right for us to terminate users of our network at our sole discretion. The tipping point for us making this decision was that the team behind Daily Stormer made the claim that we were secretly supporters…