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! 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
Comprehensive Analysis of Java SHA-256 Algorithm 1. Theoretical Background 1.1 Basics of Hash Functions The hash function is a core component of cryptography, with the following key properties: Determinism: The same input will always produce the same output Efficiency: Quickly computes the hash value for inputs of any length Pre-image Resistance: It is infeasible to … Read more
Ransomware is a new type of virus trojan that has emerged alongside the rise of digital currencies. It typically spreads through various forms such as brute force cracking, exploiting vulnerabilities, spam emails, and bundled software. Once a machine is attacked by ransomware, most files will be modified by encryption algorithms and have a special suffix … Read more
Before reading this chapter, please first understand the theory of encoding and decoding in computer basics and an introduction to OpenSSL.What is the relationship between binary, hexadecimal, bytes, and strings? HTTPS, certificates, data encryption… How many of these OpenSSL skills have you used? Below is the main content Encryption Algorithms In API integration, commonly used … Read more
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
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
HuaweiS300, S500, S2700, S5700, S6700 series switches—Ethernet Link Aggregation Configuration Routers, switches, firewallsDetailed configuration documentation knowledge base has been established and can be queried in thedialog box! ConfigurationLACP mode link aggregation ● (Optional) Configure systemLACP priority ● (Optional) Configure interfaceLACP priority ● (Optional) ConfigureLACP preemption ● (Optional) Configure the timeout for receivingLACP messages ● (Optional) … Read more
This article shares the concepts related to Pod scheduling, preemption, and eviction, which are mostly theoretical but very important and often asked in interviews. I hope you can read it patiently! Kubernetes (K8s), as a container orchestration platform, has mechanisms for <span>Scheduling</span>, <span>Preemption</span>, and <span>Eviction</span> that are key to ensuring reasonable allocation of cluster resources, … Read more
In industrial and consumer electronics, an increasing number of devices require battery power. To enable devices to operate longer with limited battery capacity, we need to master low power design techniques for microcontrollers. This article will introduce several commonly used methods to reduce power consumption based on practical applications. 1. Understanding Power Consumption Power consumption … Read more