Found a total of 10000 related content
Encryption and decryption The correct way to handle special characters in Flet applications
Article Introduction：This article aims to solve the problem of how to correctly handle special characters, especially those containing HTML entity characters when developing encryption/decryption applications using Flets. By modifying the character processing logic, using the generator to parse characters one by one, and combining the dictionary to replace special characters, the accurate encryption and decryption functions are achieved. This article provides detailed code examples and explanations to help developers understand and apply these technologies.
2025-08-30
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282
Lithe Crypt: Simplifying Cryptography in PHP Applications
Article Introduction：Lithe Crypt is a simple PHP encryption and decryption utility designed to work with the Lithe framework. It uses the AES-256-CBC algorithm for secure data handling.
Installation
To install the Lith package
2024-11-05
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560
Efficient way to convert byte arrays to BigInteger
Article Introduction：This article describes how to efficiently convert an array of bytes into BigInteger objects, especially in scenarios such as file encryption and decryption, where a single byte is encoded into multiple bytes. The focus is to avoid unnecessary complexity, directly manipulate byte arrays, and implement fast conversions through bit operations, thereby improving data processing efficiency.
2025-08-18
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975
How to implement data encryption with JavaScript?
Article Introduction：Using JavaScript to implement data encryption can use the Crypto-JS library. 1. Install and introduce the Crypto-JS library. 2. Use the AES algorithm for encryption and decryption to ensure that the same key is used. 3. Pay attention to the secure storage and transmission of keys. It is recommended to use CBC mode and environment variables to store keys. 4. Consider using WebWorkers when you need high performance. 5. When processing non-ASCII characters, you need to specify the encoding method.
2025-05-23
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1251
Lithe Crypt: Simplifying Encryption in PHP Applications
Article Introduction：Lithe Crypt is a simple encryption and decryption utility for PHP, designed to work with the Lithe framework. It utilizes the AES-256-CBC algorithm for secure data handling.
Installation
To install the Lithe Crypt package, you can use Com
2024-11-07
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694
PDF Manipulation with Python PyPDF2
Article Introduction：PyPDF2 is a practical library in Python for processing PDF files. It supports extraction of text, merging and splitting PDFs, adding watermarks and encryption operations. 1. When extracting text, you can read the page through the PdfReader class and call the extract_text() method, but the scanned file needs to be combined with the OCR tool; 2. Merge and split using the PdfWriter class, merge multiple files through append() or add a specified page in a loop to achieve split; 3. Adding watermarks requires preparing a watermark PDF and overlaying it using the merge_page() method; 4. The encryption function sets password protection through the encrypt() method, which is suitable for daily batch processing needs.
2025-07-25
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251
Performing Background Tasks with Javascript Web Workers
Article Introduction：JavaScriptWebWorkers is a key technology to improve web page performance and prevent interface lag. It avoids blocking the main thread by creating background threads to perform complex computing tasks, such as data processing, image operations, and encryption and decryption, and thus keeps the page responsive to user interaction. The steps to using WebWorkers include: 1. Write a Worker script file; 2. Load the script through newWorker() in the main thread. The communication method is: send messages through postMessage(), and onmessage receives messages, but the transmitted data will be serialized and cannot contain functions or special types. Optimization suggestions include: multiplexing Worker instances, avoiding small tasks, and paying attention to data transmission
2025-07-09
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344
