MATLAB Implementation of DES Encryption with Graphical User Interface

The original text describes a DES encryption algorithm implementation characterized by its user interface capabilities. Users can independently select target files for encryption, specify output directories, and freely configure encryption keys through GUI components like uigetfile for file selection and inputdlg for key entry. Furthermore, the software's functionality can be extended through additional MATLAB modules, such as implementing support for multiple encryption algorithms (AES, RSA) using cryptographic toolboxes, providing enhanced encryption options and settings through dropdown menus and parameter panels to meet diverse user requirements. Concurrently, file compression features could be integrated using MATLAB's zip or gzip functions, enabling users to reduce file size during encryption processes, thereby improving storage efficiency and transmission performance through combined compression-encryption pipelines. Additionally, file verification and integrity check mechanisms could be implemented using hash functions like SHA-256 via MATLAB's System.Security.Cryptography namespace, ensuring encrypted files remain untampered during transmission through checksum validation protocols. In summary, while preserving the core concepts of the original implementation, these enhanced features - multi-algorithm support via switch cases, compression integration using streaming buffers, and cryptographic hashing for integrity checks - can significantly strengthen the software's capabilities and diversification through modular MATLAB programming approaches.