Recently, I encountered an AES encryption algorithm that needs to be implemented in Java, Python, and PHP. In fact, it is not very complicated in nature, but the parameter adjustment is quite troublesome. I found some reference materials and finally got it. The actual code is as follows: Main features The three languages of JAVA, […]
Tag: ecb
09 | Why is ECB mode unsafe?
In the previous lecture, we discussed the calculation process of the symmetric key grouping algorithm. We found five key factors that affect the security of the symmetric key algorithm, as well as the impact and selection of the initialization vector on the security of the algorithm. However, there are still some remaining issues that we […]
Lightweight super-resolution network: Edge-oriented Convolution Block for Real-timeMM21_ECBSR and eSR
Article directory ECBSR (Edge-oriented Convolution Block for Real-timeMM21_ECBSR) 1. The author’s purpose is to develop an efficient super-resolution network suitable for mobile terminals. 2. The author decided to use plain net, but the effect was not good, so he used the heavy parameterization method to enrich the feature representation. 3. re-parameterization for efficient inference 4. […]
JavaScript aes-128 ECB encryption and decryption
In a previous project, I used aes-128 encrypted Bluetooth connection. I also wrote about it on my blog before. Now I found that there were some problems with the writing, so I re-optimized it. The following is a simple Dome, (note that I used automatic completion to 16-bit data, so after decryption, 0 will be […]
How to use the AES algorithm in Java and the two working modes of CBC and ECB
How to understand symmetric encryption Symmetric encryption algorithm is the traditional encryption and decryption using a secret key. Encryption: accept the secret key and plain text, and output the cipher text Decryption: Decrypt the ciphertext through the key and obtain the plaintext The secret key used for encryption and decryption is the same Common symmetric […]
Implementation of iOS-AES encryption and decryption modes (ECB, CBC, CFB, OFB)
Foreword Recently, I used AES encryption when encrypting and decrypting data on the interface with my server classmates. I originally thought that AES was just a form of encryption, but during the docking process I learned that different AES modes and padding methods produce different results. Therefore, I went to learn the basic concepts and […]
Java implements national secret SM4/ECB/PKCS7Padding symmetric encryption and decryption
Java implements national secret SM4/ECB/PKCS7Padding symmetric encryption and decryption. For the convenience of demonstration, this question uses IntelliJ IDEA 2022.1 (Community Edition) to build the code. 1. Add the required jars to the pom.xml file <?xml version=”1.0″ encoding=”UTF-8″?> <project xmlns=”http://maven.apache.org/POM/4.0.0″ xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:schemaLocation=”http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd”> <modelVersion>4.0.0</modelVersion> <groupId>org.example</groupId> <artifactId>SM345</artifactId> <version>1.0-SNAPSHOT</version> <properties> <maven.compiler.source>8</maven.compiler.source> <maven.compiler.target>8</maven.compiler.target> </properties> <dependencies> <!–sm3,sm4 encryption algorithm–> […]
CBC and ECB two working modes of AES algorithm
Directory 1. AES algorithm 2. ECB mode 3. CBC mode Fourth, the difference between ECB and CBC mode 1. AES algorithm AES (Advanced Encryption Standard, Advanced Encryption Standard) algorithm is currently the most widely used symmetric encryption algorithm (a symmetric encryption algorithm uses the same key for encryption and decryption), and the two common working […]
AES_ECB Algorithm Principle and C Language Implementation
1. Basic principle of AES_ECB algorithm The AES_ECB algorithm is the simplest of several modes of the AES algorithm. AES supports key lengths of different lengths: 128bit (16 bytes), 192bit (24 bytes), 256bit (32 bytes). This article takes 128bit as an example for illustration. The algorithm flow is as follows: The first step is to […]
CBC and ECB two working modes of AES algorithm
AES Algorithm Overview: Symmetric-key cryptography: The same key is used for encryption and decryption. Commonly used symmetric encryption algorithms are DES, AES, IDEA; Asymmetric-key cryptography: Different keys are used for encryption and decryption. For example, the content encrypted by the public key can only be decrypted by the private key, so it is also called […]