关键词: XML, RSA加密算法, AES加密算法, 费马小定理, 孙子定理, 加解密效率, XML文档加密

Abstract:

XML (Extensible Markup Language) is the preferred medium for data exchange. Therefore, appropriate encryption and decryption methods must be selected to ensure its security. RSA (Rivest-Shamir-Adleman) encryption algorithm and AES (Advanced Encryption Standard) encryption algorithm are common encryption methods at present, but when encrypting and decrypting XML documents, RSA encryption algorithm is inefficient and AES encryption algorithm is less secure. In view of the above problems, the RSA encryption algorithm is improved using Chinese remainder theorem and Fermat's little theorem. The experimental results show that the encryption and decryption efficiency of the improved RSA encryption algorithm has been significantly improved. The combination of AES encryption algorithm and RSA encryption algorithm or the combination of AES encryption algorithm and improved RSA encryption algorithm can improve the security, but the efficiency of the former is lower than that of the latter.

Key words: XML, RSA encryption algorithm, AES encryption algorithm, Fermat's little theorem, Chinese remainder theorem, encryption and decryption efficiency, XML document encryption