Improved CCM-DES Algorithm Enhances Document Data Security and Similarity Detection

This study introduces a document data security protection system based on an improved CCM-DES algorithm that addresses limitations of the traditional DES algorithm, such as limited key space and challenges in semantic rewriting during document similarity detection. The system combines composite chaotic mapping to perturb subkey order and Simhash multi-level fingerprints for rapid similarity detection, integrating encryption, integrity authentication, and leak identification. Experimental results demonstrate high encryption throughput, low latency, and strong accuracy compared to other encryption methods.

Originally published by gnews