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
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
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
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
Follow and star our public account to access exciting content Source: Online materials With the advent of artificial intelligence and the Internet of Things, data applications have become more frequent. How should data security be protected? What software encryption algorithms are available, and in what areas are these algorithms applied? As you read on, you … Read more
It is well known that the stability of the world’s financial infrastructure relies on the RSA encryption algorithm used by banks. This algorithm ultimately hinges on the difficulty of prime factorization. Since factorizing large numbers is a challenging task, almost impossible to accomplish manually, even computers would take thousands of years to crack a large … Read more
In the field of mathematics, I tried my best to explain the mathematical principles of cryptographic algorithms, but I failed, leading to the need to write a second version (Did someone not understand? Let’s try explaining the RSA encryption algorithm again). These are just arithmetic. Something that sounds sophisticated like elliptic curves, I thought I … Read more
In the context of increasingly severe cybersecurity threats, how to protect the communication security of embedded devices, mobile applications, and even enterprise systems has become a pressing issue for developers. wolfSSL, as an efficient, lightweight, and industry-standard compliant SSL/TLS library, has gradually become the preferred choice for security in embedded and resource-constrained environments due to … Read more