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How to exchange a secret key over an insecure network (EC-Diffie-Hellman algorithm)

Information Security *Cryptography *Programming *

Let’s say you want to send an encrypted message to your friend in order to avoid it being intercepted and read by a third party. You generate a random secret key and encrypt the message with it. Let’s say you use AES. But how do you let your friend know the key to decrypt it?

In this article, we will explore how the Elliptic-Curve Diffie-Hellman algorithm works under the hood. The article includes the implementation of this algorithm from scratch, written in Python.

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Total votes 1: ↑1 and ↓0 +1
Views 247
Comments 0

Anonymity and Untraceability

Decentralized networks *Information Security *Cryptography *

The following text consists of two logically connected parts. The first part constructively rules out the assumption that untraceability supposes anonymity. The second part enumerates specific practical tasks in the form of various scenarios when digital signatures (DS) do not provide correct solutions to the task. It is demonstrated that a complete solution can be obtained through a special combination of DS and an interactive anonymous identification protocol.

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Rating 0
Views 284
Comments 0

E-commerce Trends you can’t miss

Instant Messaging *CRM systems *Internet marketing *E-commerce management *Sales management *

The e-commerce market in 2022 leaves entrepreneurs no choice but immediately incorporate new technologies. Today it is not enough to follow the latest trends, because you need to be two steps ahead. How to do it?

Consumer behavior has changed, especially since this pandemic. You get used to good things quickly, so online shopping and fast delivery services made us all appreciate our time and comfort.

You have to pay for everything in this life, so retailers and marketplaces have to pay for the growth of demand and profits in the field of e-commerce by regularly introducing new technologies, fighting for consumer loyalty, and rivalry in endless competition.

Here are a few of the latest e-commerce trends that cannot be missed if you want to achieve stable profits and customer growth.

All attention to CRO

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Rating 0
Views 391
Comments 0

Main Challenges and Mistakes in Creating Your Design System

Иннотех corporate blog Development of mobile applications *Mobile applications design *
Translation

Design system creation and integration is a challenging and rather tedious task. It can simply the development process or make it even harder. Anton Polyakov, Project Management Director for Innotech’s Mobile Development Department shares his team’s experience to demonstrate the unforeseen challenges they encountered.

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Total votes 3: ↑3 and ↓0 +3
Views 372
Comments 0

Proof's by induction using Rust's type-system

Mathematics *Functional Programming *Rust *
Sandbox

Rust's type system is quite powerful as it allows to encode complex relationships between user-defined types using recursive rules that are automatically applied by the compiler. Idea behind this post is to use some of those rules to encode properties of our domain. Here we take a look at Peano axioms defined for natural numbers and try to derive some of them using traits, trait bounds and recursive impl blocks. We want to make the compiler work for us by verifying facts about our domain, so that we could invoke the compiler to check whether a particular statement holds or not. Our end goal is to encode natural numbers as types and their relationships as traits such that only valid relationships would compile. (e.g. in case we define types for 1 and 3 and relationship of less than, 1 < 3 should compile but 3 < 1 shouldn't, that all would be encoded using Rust's language syntax of course)

Let's define some natural numbers on the type level first.

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Total votes 5: ↑5 and ↓0 +5
Views 497
Comments 1

The potential Augmented Reality has to disrupt real sectors

Development for AR and VR *
Recovery mode

Augmented reality (AR) has been gaining popularity in recent years, with companies such as Apple, Meta, Google and Microsoft investing heavily in the technology. AR technology allows users to see digital objects and information overlaid onto the real world. This technology has the potential to revolutionize multiple sectors in the future, from healthcare to education to entertainment. In this article, we will explore how AR is going to change these sectors and the potential impact it will have on society. 

We will have a closer look into three sectors and try to see how AR could change them in upcoming future.

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Rating 0
Views 333
Comments 0

Mocking RESP API in 20 minutes via Yakbak

JavaScript *Programming *
Translation
Tutorial


Imagine this: you are an ordinary frontend developer. When you open your mailbox you found a message — tomorrow DevOps team will make an optimization with Kubernetes. You are experienced developer and you know that environment operation test might go sideways. Test environment is crucial for your job as frontend developer and you don’t want to miss a whole day on a job, so there are two possible solutions present:


  1. Setup all microservices on your laptop
  2. Prepare mocks for API

I will describe how to mock REST API request via Yakbak.

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Rating 0
Views 862
Comments 0

The On-Line Encyclopedia of Integer Sequences today

Mathematics *Social networks and communities

You can encounter integer sequences all around combinatorics, number theory, and recreational mathematics. And if there is a multitude of objects of the similar form, then one can create an index for these objects. The On-Line Encyclopedia of Integer Sequences, OEIS, is such an index.

This is a translation of my article The On-Line Encyclopedia of Integer Sequences in 2021, published in Mat. Pros. Ser. 3 28, 199–212 (2021).

This article covers the On-Line Encyclopedia inclusion criteria, its editorial process, its role in mathematics, and its future.

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Rating 0
Views 544
Comments 1

Python Junior Plus, or the beginner's Roadmap to becoming a Python programmer

Python *Programming *IT career

image


Hello! My name is Mikhail Emelyanov, I am embedded software engineer, and I was inspired to write this little roadmap on the capabilities of Python language by a certain commonality among the existing Python tutorials found on the web.


The usual suggestions to study, say, “Algorithms and Data Structures” or “Databases” are especially jarring. You can spend years studying these topics, and even after decades you'd still be able to find something you didn't know yet even without ever venturing outside the scope of Algorithms!


Using video game analogies, we can say that novice programmers often stand on the shore of the lake of boiling lava with an island with the ever-coveted jobs in the center, while the islands in between, which you have to jump on, gradually increasing your skills in successive mini-quests, are either missing, or arranged haphazardly, or their fairly smooth sequence breaks off, never having managed to get you any farther from the shore. Let's try to build a path of hint islands, a number of which, although not without effort, will finally allow us to reach our goal.

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Rating 0
Views 1.3K
Comments 3

How Can I Start My Own IPTV Provider?

IPTV *Monitors and TV

IPTV is quickly rising to the top of the list of TV viewing options for viewers worldwide. other types of home entertainment, including music and video. This indicates a developing market for service providers and a potential new source of income. But how can you set up an IPTV service? Mware Solutions can assist you in establishing the required infrastructure for a successful entry into this cutthroat market.

TV delivered using an Internet Protocol Network is known as IPTV. This new technology has the potential to alter how we watch television at home, get training, utilize computers, and even use cell phones. From computer monitors and mobile phone screens to plasma and LCD televisions, it is used to provide television services to all of these devices. But how can you launch an IPTV company and become a provider of IPTV? An IPTV business solution is what?

We, therefore, decided to offer an eight-week boot camp to teach you everything you require to launch your own IPTV company. You may build the necessary infrastructure with the aid of Setplex to successfully enter this cutthroat market.

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Total votes 3: ↑3 and ↓0 +3
Views 1.1K
Comments 0

WWDC22 hidden gems

Development for iOS *Development of mobile applications *
Sandbox

For iOS developers, WWDC is always something of a New Year. We are presented with so many new products, and sometimes you can get lost in them. Most of my colleagues are trying to be in touch by watching “Platform State of Union” and all “What’s new” sessions. The event basically provides an opportunity to developers a glimpse of the features to expect from the software part. When Apple has a conference like this one, they want to make sure they have enough time to get everything done. In order to do this, they need to be able to work at their own pace and not worry about how long it will take them to get something done.

This means that if you have a small project, it may not be that important but once you move into larger projects with more people involved, every second saved can be worth several dollars in terms of money saved or profit made by the company. The platform tightly integrates programming languages, frameworks, and tools. Everyone gains when these three complement one another. Customers receive a consistent experience, such as scrolling that feels right every time. And developers may devote more time and attention to what distinguishes the app.

And it’s fine, you don’t need to spend so much time for this other unpopular stuff. However, in these, not-so-popular videos as couple of them may be called as “hidden gems” because of the content or a beautiful presentation/structure. Let me show couple of them!

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Total votes 2: ↑2 and ↓0 +2
Views 901
Comments 3

Startup story — how we pivoted mobile apps and business from «beauty Uber» to «beauty coworking»

Development of mobile applications *Mobile applications design *Mobile applications monetization *Start-up development Business Models *
Sandbox

Hi everyone! My name is Dmitrii Konstantinov and this is a personal story of experience and growth in a cozy startup. How we made a business pivot and adapted the server and mobile apps for it. What challenges did we face and how did we solve them.

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Total votes 7: ↑7 and ↓0 +7
Views 619
Comments 2

How we designed the user interface for an enterprise analytical system

Singula Team corporate blog Big Data *CGI *Data Engineering *

In 2021, we were contacted by an industrial plant that was faced with the need to create a system for analyzing processes in its production. The enterprise team studied ready-made solutions, but none of the analytics system designs fully covered the required functionality. So they turned to us with a request to develop their own analytical system that would collect data from all machines and allow it to be analyzed to see bottlenecks in production. For this project, we created a data-driven UI/UX design and also developed a web-based interface for the equipment monitoring system.

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Total votes 5: ↑5 and ↓0 +5
Views 410
Comments 0

Understanding the Differences Between Kafka and RabbitMQ: in Simple Terms

Иннотех corporate blog Programming *IT Infrastructure *Data storage *DevOps *
Translation

Software message brokers became the standard for creating complex systems. However not all IT specialists understand how these instruments work. Pavel Malygin, Lead System Analyst at Innotech, dives into the topic of message brokers and explains how they are used.

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Total votes 3: ↑3 and ↓0 +3
Views 2.4K
Comments 2

PostgreSQL 16: Part 2 or CommitFest 2022-09

Postgres Professional corporate blog PostgreSQL *SQL *
Translation


It's official! PostgreSQL 15 is out, and the community is abuzz discussing all the new features of the fresh release.


Meanwhile, the October CommitFest for PostgreSQL 16 had come and gone, with its own notable additions to the code.


If you missed the July CommitFest, our previous article will get you up to speed in no time.


Here are the patches I want to talk about:


SYSTEM_USER function
Frozen pages/tuples information in autovacuum's server log
pg_stat_get_backend_idset returns the actual backend ID
Improved performance of ORDER BY / DISTINCT aggregates
Faster bulk-loading into partitioned tables
Optimized lookups in snapshots
Bidirectional logical replication
pg_auth_members: pg_auth_members: role membership granting management
pg_auth_members: role membership and privilege inheritance
pg_receivewal and pg_recvlogical can now handle SIGTERM

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Total votes 1: ↑1 and ↓0 +1
Views 468
Comments 0

Digital modeling of analog guitar distortion effects

Circuit design *Manufacture and development of electronics *Software DIY Sound

The sound of rock music, in particular of hard rock and heavy metal, is largely based on a specially distorted guitar sound, for which electronic “distortion” devices, tube amplifiers in “overloaded” mode, computers with appropriate software and digital processors are used. increasingly using neural network algorithms.

The distorted sound of electric guitars began to gain popularity around the 1960s. Since that time, the sound of overloaded tube amplifiers, connected to powerful dedicated guitar speakers with large dedicated speakers, has been considered the benchmark in rock music. But tube amplifiers were relatively expensive and inconvenient to operate. Therefore, semiconductor distortion devices were developed.

At that time, the electrical circuitry of distortion devices was relatively simple and the signal output from their output only vaguely resembled the sound of an overloaded tube amplifier. Nevertheless, it was still somewhat similar to the “sound of a lamp” and this provided a powerful incentive for designers of analog semiconductor distortion circuits to continue their research, complicate circuits and propose new circuit solutions. The heyday of analog solid-state distortion was around 1995-2010. The most popular were electrical circuit diagrams like those shown in the figure below.

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Total votes 3: ↑3 and ↓0 +3
Views 571
Comments 0

How to handle Stale Element Reference Exception in E2E testing of modern SPA applications

Bimeister corporate blog IT systems testing *.NET *C# *Web services testing *
Tutorial

Hello everyone, my name is Denis, I am Software Developer Engineer in Test (SDET) at Bimeister. I am in charge of test software development - frameworks, automated tests, CI Pipelines configuration, and much more.

In this article, I will tell you how we defeated the Stale Element Reference Exception while developing our framework using Selenium WebDriver and C#.

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Total votes 2: ↑2 and ↓0 +2
Views 430
Comments 0

I trained a neural network on my drawings and give the model for free (and teach you to create your own)

Python *Image processing *Machine learning *Graphic design *Artificial Intelligence
Tutorial

Great for seamless patterns, abstract drawings, and watercolor-styled images. How to use it and train a neural network on your own pictures?

Download the model here: https://huggingface.co/netsvetaev/netsvetaev-free

I wanna know!
Total votes 6: ↑6 and ↓0 +6
Views 1.2K
Comments 0