During the Dev4Cloud Levture i created a simple static webpage that uses Amazons S3 service for Hosting and video storage and amazons cognito for user authentification and role managemant.
Month: August 2018
Tweets by Donnie - Building a serverless sentiment analysis application with the twitter streaming API, Lambda and Kinesis
Thinking of Trumps tweets it’s pretty obvious that they are controversial. Trying to gain insights of how controversial his tweets really are, we created tweets-by-donnie.
“It’s freezing and snowing in New York — we need global warming!”
Donald J. Trump
You decide if it’s meant as a joke or not.
But wouldn’t it be nice to know whether the public is seeing this as a joke or whether it’s getting upset by it? That’s where our idea originated from. By measuring the emotions presented in the responses we can see what the public is thinking of Trumps posts throughout the day.
Using the power of google cloud API: A dockerized node app counting words in prasentations.
For the Dev4Cloud lecture at HdM Stuttgart, we created a simple Go/NodeJS/React App, which helps people to keep track of often used words during presentations. In a presentation setting, most people tend to use too many fill words and to train against this, we want to introduce our presentation counter to you.
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Building a Serverless Web Service For Music Fingerprinting
Building serverless architectures is hard. At least it was to me in my first attempt to design a loosely coupled system that should, in the long term, mean a good bye to my all-time aversion towards system maintenance.
Music information retrieval is also hard. It is when you attempt to start to grasp the underlying theoretical framework and submerge yourself into scientific papers which each yield a different approach for extracting some feature out of digital audio signals. It is a long way until MFCC starts to sound natural. I have been there.
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Safety Culture – Improve “the way we do things around here”
The safety culture of an organization is the key indication of its performance related to safety. It incorporates the visible rules, norms and practices as well as the implicit factors such as values, beliefs and assumptions. That is why the safety culture reflects “the way we do things around here” which is the most precise definition. Safety is a universal topic since we pursue it permanently and every action is safety related. To improve safety, we first need to understand the organization’s unique safety culture before we can derive tailored actions. This post covers the basic theoretical background of a safety culture and focuses and two central components: just and learning culture. The resulting principles can increase the resistance of an organization towards its operational hazards but only if they are adapted to the unique situation. There is no generally applicable step-by-step manual on how to implement a safety culture.
Smart Meter
Smart meters have been a controversial topic for quite a while. Other countries began the roll out years ago. In Germany this takes way longer and there are still no certified products for the energy companies to install. The BSI (Bundesamt für Sicherheit in der Informationstechnologie) is responsible for certifying the smart meters. There are several smart meters up for certification as you can see on this side of the BSI.
The main reason for installing smart meters is the energy transformation to make the energy net more reliable for renewable energies. Therefore the EU has decided that every country should provide smart meters to their consumers. Thus the Bundesregierung passed the law for Digitalisierung der Energiewende in 2016. It requires 80% of all households to own a smart meter by 2020.
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Why AI is a Threat for our Digital Security
Artificial intelligence has a great potential to improve many areas of our lives in the future. But what happens when these AI technologies are used maliciously?
Sure, a big topic may be autonomous weapons or so called “killer robots”. But beside our physical security – what about our digital one? How the malicious use of artificial intelligence will threaten and is already threatening our digital security, will be discussed in this blog post.
Cloud security tools and recommendations for DevOps in 2018
Introduction
Over the last five years, the use of cloud computing services has increased rapidly, in German companies. According to a statistic from Bitkom Research in 2018, the acceptance of cloud-computing services is growing.
Cloud-computing brings many advantages for a business. For example, expenses for the internal infrastructure and its administration can be saved. Resource scaling is easier, it can be done when the appropriate capital is available. In general the level of innovation within companies is also increasing, so this can support new technologies and business models. Cloud-computing can also increase data security and data protection, because the big providers must comply with standards and obtain certification through the EU-DSGVO General Data Protection Regulation, which came into force in May 2018. There is even special cloud providers that offer such services, so these are working based on the regulations of the TCDP (Trusted Cloud Data Protection) certification.
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Usability and Security
Usability and Security – Is a tradeoff necessary?
Usability is one of the main reasons for a successful software with user interaction. But often it is worsened by high security standards. Furthermore many use cases need authentication, authorisation and system access where high damage is risked when security possibilities get reduced. In this article the dependence of these two areas as well as typical mistakes with their possible solutions are shown to bury a fallacy in IT: “There needs to be a tradeoff between security and usability”.
Security in Smart Cities
Today cities are growing bigger and faster than ever before. This results in various negative aspects for the citizens such as increased traffic, pollution, crime and cost of living, just to name a few. Governments and city administrations and authorities are in need to find solutions in order to alleviate these drawbacks. Over the past years one solution arose and has grown continuously was the concept of the smart city.
The concept of smart cities is based on the application of connected systems to manage a city efficiently. There are various aspects in which smart cities emphasize such as transport control, energy and water transport or public health and safety management. The broad distribution of Internet of Things (IoT) technologies favors the development of smart cities. IoT devices are considered the backbone of a smart city as they function as sensors and can be applied in many environments.
In some environments today’s cities are already really smart. For example, many large cities are using a traffic and transport control system, which can control the flow of traffic and make it more efficient, reducing or even avoiding congestion and increase traffic flow. Smart cities are becoming reality. But as the smart city technologies touching more and more aspects of the citizens everyday life, these technologies drawing increased attention from cyber attackers. Since many of the smart city technologies control safety-critical systems like the already mentioned traffic and transport control system, those systems are worthwhile and, because of the security concerns about the underlying IoT technology, often weak targets.
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