With the rise of blockchain technology and cryptocurrency, various types of tokens have emerged, each serving different purposes within the digital economy. Two prominent categories of tokens are security tokens and utility tokens. In this article, we'll discuss the differences between security tokens and utility tokens, exploring their characteristics, use cases, regulatory considerations, and … [Read more...]
Computer and Internet
Computer and Internet is catchall section of core computing categories including Cloud Computing, Digital Photography, Virtualization, Networking, Protocols and Others' which are not otherwise more subcategorized. Here also you will get unique articles and news on computer hardware, Software, Networking and Protocols.
How to Encrypt a File for Transport with GnuPG on Windows WSL (Ubuntu)
This guide teaches you how to encrypt a file such as text file before transporting them over the internet to your friend so that nobody else can open and read it. This is essential for maintaining data privacy and security. GnuPG (GNU Privacy Guard) is a powerful open-source encryption tool that allows users to encrypt and decrypt files using public-key cryptography. To follow this guide, you … [Read more...]
What is a Honeypot in Cybersecurity?
A honeypot is a decoy system or network designed to attract and trap malicious actors, allowing security professionals to monitor their activities, analyze tactics, and gather valuable information. Unlike traditional security measures that focus on perimeter defense and intrusion prevention, honeypots operate on the principle of deception, enticing attackers to interact with the decoy environment … [Read more...]
What Is Ransomware?
Ransomware are malicious programs that can be used by an intruder to prevent the computer owner from accessing data, using it or the entire computer system. This involves encrypting data on the foreign computer or preventing access to it in order to demand a ransom for decryption or release. In recent years, ransomware has emerged as one of the most pervasive and damaging cyber threats facing … [Read more...]
1990s Technologies Which Are Still Used Today
The 1990s were a transformative era in technology, marked by the rise of the internet, and the proliferation of electronics and personal computing. This era gave birth to many groundbreaking innovations. While the pace of technological advancement has been rapid since then, several key technologies from the 1990s continue to play significant roles in shaping our world today. From communication to … [Read more...]
What is PGP (Pretty Good Privacy)? How PGP Works?
Pretty Good Privacy is a program developed by Phil Zimmermann for encrypting and signing data. PGP uses a so-called public key method, in which there is a uniquely assigned key pair. It uses a public key, which anyone can use to encrypt data for the recipient and verify their signatures, and a private secret key, which only the recipient owns and is usually protected by a password. Messages to … [Read more...]
Why We Need to Validate File Integrity With Checksums
Ensuring the integrity of files is important for maintaining data reliability and security. Files can become corrupted, altered, or tampered with due to various factors such as transmission errors, hardware failures, malicious attacks, or accidental modifications. To mitigate these risks and ensure the trustworthiness of files, validating file integrity with checksums has become an essential … [Read more...]
Toit & Jaguar: Live Reloading of Arduino Code in ESP32
Toit is a high-level language for live reloading of code on microcontrollers such as ESP32. The written code runs incrementally as we write it, and we receive instant results. We can push changes over WiFi in two seconds. What is unique to Toit is that it uses virtual machine technology to support running multiple containers on ESP32. It is like running a micro-scale Docker on ESP32. Naturally, … [Read more...]
How CAcert Works
CAcert is a community-operated, non-profit Certification Authority (CA) operated by the Geneva-based non-profit organization CAcert Incorporated, formerly registered in Australia. CAcert issues X.509 certificates free of charge for various purposes and is intended to be an alternative to the commercial certificate authorities, some of which charge quite high fees for their certificates. As a … [Read more...]
What Is Email Encryption? Example with GPG
Email encryption is used to send sensitive information encrypted via email. There are two different principles for this, which are used independently of each other. First, end-to-end encryption encrypts an email end-to-end between the sender and recipient. Second, with point-to-point or transport encryption, the transmission distance of an email is encrypted between two components in the email … [Read more...]
How to Use Arduino with Visual Studio Code on Windows PC
Visual Studio Code (VS Code) has become a popular choice among developers for its lightweight yet powerful features and extensive customization options. While it's commonly associated with software development, it's also a versatile platform for programming hardware, including Arduino microcontrollers. In this guide, we'll explore how to set up and use Visual Studio Code for Arduino development, … [Read more...]