电子商务中的加密算法研究

Study on Encryption Arithmetic in E-commerce

安全问题是电子商务得以普及与推广所面临的核心问题 ,而密码技术是解决安全问题的核心技术 .对密码技术的加密机理及其在电子商务中的作用给以充分阐述 ,并对汉字文档如何利用MIT算法实施加密作了深入研究 .众所周知 ,二级汉字库的内部码由两个字节表示 ,范围在 0 0 0 1～ 70 0 0之间 ,若将汉字内部码分成两段 ,每段只一个字节 ,范围降为 0 0 1～ 2 5 6 ,据此可以产生实用的密钥对儿 .利用这一技术 ,给出了可行的对汉字文档加解密算法 ,并用实例展示了这种算法 .

Security is the key issue for E-commerce to popularize and spread,while encryption is the key technique for solving security problems.This paper thoroughly explains encryption mechanism and its function in E-commerce and deeply explores how to utilize MIT algorithm in encryption of Chinese documents.It is well known that the code of Grade Two Chinese character library ranges between 0001～7 000, with each code expressed by two types.Each type will range between 001～256,if we divided the code into two sections, with each section having only one byte.This paper also illustrates the feasible algorithm for Chinese documents encryption and decryption.