digital signatures

Research on Data Encryption Security System in Securities Trading

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Research on Data Encryption Security System in Securities Trading

Author / Tao Jianfeng, Director of Information Technology Department, CITIC Construction Investment Securities Co., Ltd. Du Guowei, Chen Hongping, CITIC Construction Investment Securities Co., Ltd. Information Technology Department Since the implementation of the “Cryptography Law of the People’s Republic of China”, it has effectively promoted the advancement of cryptographic technology, industry development, and standardized applications. … Read more

IPv4: Overcoming IPv5, What About IPv6?

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IPv4: Overcoming IPv5, What About IPv6?

Source: ZTE Documentation Original Author: ZTE Documentation Have you heard of IPv5? It was once a highly anticipated technology! IPv5, also known as the Internet Stream Protocol (ST), was designed for connection-oriented communication across IP networks, aiming to support voice and video. However, its 32-bit address scheme is the same as that used by IPv4, … Read more

Introduction to Multimeter and Its Usage

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Introduction to Multimeter and Its Usage

Click on the image to enlarge 1. Introduction to Multimeter 1.1 Definition A multimeter is a magnetic electrical instrument equipped with a rectifier that can measure various electrical parameters such as AC and DC current, voltage, and resistance. For each electrical quantity, there are generally several ranges. Also known as a multi-purpose meter or simply … Read more

A Brief Discussion on the Differences Between Analog and Digital Oscilloscopes

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A Brief Discussion on the Differences Between Analog and Digital Oscilloscopes

An oscilloscope is a window to observe waveforms, allowing designers or maintenance personnel to see electronic waveforms in detail, achieving a real-time visual effect. Because the human eye is the most sensitive visual organ, it can perceive minute details and quickly reflect objects to the brain for comparison and judgment. According to the different classifications … Read more

Understanding Android Signature Versions: v1, v2, v3, and v4

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Understanding Android Signature Versions: v1, v2, v3, and v4

This article is authored by Jiu Xin, originally published at: Jiu Xin Says. Introduction Recently, I helped the testing team with some signature-related requirements, and today I would like to briefly discuss the topic of signatures with everyone. If you ask why Android needs signatures, everyone might think of the official explanation: ❝ The Android … Read more

Digital Signature Algorithm (DSA) in Cryptography: How It Works and Its Advantages

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Digital Signature Algorithm (DSA) in Cryptography: How It Works and Its Advantages

The COVID-19 pandemic has made remote working the new norm and brought the business world into a phase that is yet to be explored. Undoubtedly, due to the lack of face-to-face interaction and standard distance restrictions, many users have had to digitally sign some official documents over the past few years. To maintain the authenticity … Read more

Introduction to Information Security and Cryptography

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Introduction to Information Security and Cryptography

This article provides a preliminary understanding of the field of information security. 1. Briefly describe security attacks, security mechanisms, and security services. Security attack: Any act that jeopardizes the security of an information system. Security mechanism: A process used to detect, prevent attacks, or recover from an attack state to a normal state. Security service … Read more

Overview of Cybersecurity and Cryptographic Algorithms

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Overview of Cybersecurity and Cryptographic Algorithms

Author: Dou Er Bi’s Daily Link: https://www.jianshu.com/p/05a0f2ec935b Security prevention technologies established and adopted for data processing systems to protect computer hardware, software, and data from accidental and malicious destruction, alteration, and leakage. Main Cybersecurity Threats • Unauthorized access • Information leakage or loss • Data integrity destruction • Denial of Service (DoS) attacks • Spreading … Read more

The Race Between Cryptography and Quantum Computing

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The Race Between Cryptography and Quantum Computing

Author: Kelsey Houston-Edwards“Guangming Daily” (November 7, 2024, Page 14)   The advent of future quantum computers will threaten the security of all classical encrypted information, and cryptographers are racing against time to develop encryption algorithms that can confound quantum computers. Rapidly Developing Quantum Computers   Digital security experts worldwide are focusing on the Quantum Year Clock (Y2Q … Read more

Which Brand of Multimeter is Good? Check Out My Collection of 20 Models

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Which Brand of Multimeter is Good? Check Out My Collection of 20 Models

Author: David Ashton My old friend Max wrote an article titled “What is the Best Travel Tool?” which reminded me of the multimeters I have owned, currently own, and wish to own in the future. These multimeters range from simple, inexpensive analog meters to high-quality Flukes. In the realm of digital multimeters, especially handheld ones, … Read more