‘Encryption’

Encrypting Database Connection Information and YAML Configuration Properties in Spring Boot Using the SM4 National Encryption Algorithm (Automatic Decryption on Read)

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Encrypting Database Connection Information and YAML Configuration Properties in Spring Boot Using the SM4 National Encryption Algorithm (Automatic Decryption on Read)

Click on the “Business Card” above to follow our public account You can obtain programming materials from the menu bar Hello, I am Coder-Wen Xiaobai,a post-95 Java backend developer. 1. Introduction In the process of developing business systems, we inevitably use databases. During application development, database connection information is often configured in plain text in … Read more

Java Cryptography Architecture: Providing Multiple Encryption Algorithms to Meet Data Encryption and Security Authentication Needs

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Java Cryptography Architecture: Providing Multiple Encryption Algorithms to Meet Data Encryption and Security Authentication Needs

In Java development, data security is of utmost importance, and the Java Cryptography Architecture acts as a reliable “security guard,” providing various encryption algorithms to ensure data safety. Below, I will guide you through how it meets the needs for data encryption and security authentication. 1. What is the Java Cryptography Architecture? Let’s first discuss … Read more

Understanding Encryption Algorithms Through Number Theory

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Understanding Encryption Algorithms Through Number Theory

Click the blue text to follow us Understanding Encryption Algorithms Through Number Theory Hello, students! I am Teacher Zhang, the formula wizard. Today in class, a student named Xiao Wang asked me an interesting question: “Teacher, I haven’t even understood functions yet, so what are those complex encryption algorithms? I heard they use number theory?” … Read more

Creating a Desktop File Encryption Tool with Java: High-Strength Encryption Algorithms to Protect File Privacy and Security

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Creating a Desktop File Encryption Tool with Java: High-Strength Encryption Algorithms to Protect File Privacy and Security

Creating a Desktop File Encryption Tool with Java Hello, friends! I also started as a beginner in Python, and today we will create a super practical desktop file encryption tool using Java. In our daily work and life, file privacy and security are becoming increasingly important. With this tool, we can use high-strength encryption algorithms … Read more

Practical Guide to Integrating and Applying the National Encryption Algorithm SM4 in Financial Systems

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Practical Guide to Integrating and Applying the National Encryption Algorithm SM4 in Financial Systems

Last year during the upgrade of the core banking system, I spent three minutes staring at the “Transaction Security Encryption in Progress” message on the mobile banking app—not because the system was stuck, but because our team was debugging the integration of the SM4 algorithm overnight. As a commercially developed encryption algorithm in China, SM4 … Read more

C# DES Algorithm Encryption: The Glory and Challenges of Classic Encryption

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C# DES Algorithm Encryption: The Glory and Challenges of Classic Encryption

Introduction Hello everyone! If you are interested in encryption algorithms, then the DES algorithm is certainly a topic you cannot avoid. DES is like the classic sports car of the encryption world—debuting in 1977, it once enjoyed great popularity. Although it is no longer the safest choice today, DES remains a very interesting and useful … Read more

PyCryptoDome: A Python Library for Cryptographic Algorithms!

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PyCryptoDome: A Python Library for Cryptographic Algorithms!

PyCryptoDome: A Python Library for Cryptographic Algorithms! Hello everyone, I am your old friend. Today we are going to explore a very powerful Python library – PyCryptoDome. It is a robust library for implementing various cryptographic algorithms, supporting multiple symmetric and asymmetric encryption methods, as well as hash functions, message authentication codes, and more. With … Read more

Understanding the DES Encryption Algorithm

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Understanding the DES Encryption Algorithm

Notes on Learning the DES Algorithm DES (Data Encryption Standard) is a classic symmetric encryption algorithm developed by IBM and adopted by the U.S. National Bureau of Standards in 1977. It uses a fixed-length 56-bit key to encrypt 64-bit data blocks, transforming plaintext into ciphertext through a series of complex permutations and substitutions. This is … Read more

How RSA Encryption Algorithm Protects Your Digital Security

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How RSA Encryption Algorithm Protects Your Digital Security

If you find this article beneficial, feel free to share it. In this digital age, every online transaction and every encrypted email relies on a sophisticated encryption system. Today, I want to talk about the RSA algorithm (Rivest-Shamir-Adleman, named after its three inventors), the foundation of public key encryption that builds a security barrier in … Read more

Embedded Linux Software Upgrade Solution – Implementation with Shell Scripts

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Embedded Linux Software Upgrade Solution - Implementation with Shell Scripts

Recently, due to work requirements, there is a need to implement a software upgrade solution on the embedded Linux platform. Embedded Platform The single board contains 2 CPUs, divided into a main control CPU and a management CPU. Only the main control CPU can communicate with the outside through the management network port; the management … Read more