PHP code class for encrypting and decrypting cookies using base64

06May2019

The characteristics of the Java class library are: 1. Simplicity; 2. Object-oriented; 3. Distributed; 4. Interpreted; 5. Reliable; 6. Security; 7. Platform independent; 8. Portable; 9. High performance; 10. Multi-threading; 11. Dynamicity, etc.

16Apr2024

Java Serialization Security Introduction Java serialization is a process of converting objects into a stream of bytes for storage or transmission. While serialization is useful in many situations, it also has security vulnerabilities that allow an attacker to execute malicious code within a serialized object. Serialization Vulnerability Type Deserialization Injection: An attacker can modify a serialized object to inject a malicious class or method during deserialization. Exploitable gadgets: A malicious class can use public methods in a Java class library to perform unauthorized operations. Remote Code Execution (RCE): An attacker can execute arbitrary code on the server by injecting a malicious payload through deserialization. Security Practices To ensure the security of Java serialization,

15Jun2018

ThinkPHP base class library The class library is the core part of ThinkPHP, and ThinkPHP manages all system class libraries together through the concept of base class library. The core base class library includes basic classes and common tool classes necessary to complete the universal development of the framework. The base class library is located in the Lib/Think directory under the ThinkPHP system directory and consists of the following parts: Core: core class library package Db: database class library package Exception: exception handling class library package Template

11May2023

With the advent of the Internet and the digital age, images are used more and more widely, especially in some situations where it is necessary to add watermarks or background images to images to ensure information security and copyright protection. At this time, we can use PHP language and TCPDF library to implement watermarking and background image processing of images. The following is the specific implementation method. 1. Install the TCPDF library TCPDF is an open source PHP class library used to create PDF documents, but it also provides some tools to create images. The installation of the TCPDF class library is relatively simple, we

13Jul2016

Share a php class library that implements MYSQL backup, phpmysql backup class library. Share a PHP class library that implements MYSQL backup, phpmysql backup class library. I just want to study how to back up the database, share a PHP class library that implements MYSQL backup?php/****** Backup database structure

12Jul2016

PHP PDO common class library example analysis, pdo class library example analysis. Example analysis of PHP's PDO common class library, pdo class library example analysis This article describes PHP's PDO common class library with examples. Share it with everyone for your reference, the details are as follows: 1. Db.class.php connects to the database