【摘要】 介绍了在伪随机数序列的基础上构造 Hash函数 ,对用户口令映射 ,利用产生的映射密匙加密文件 ,对文件用二进制完全读写 ,通过将文件转化为字节数组 ,再将数组转化为文件 ,将加密、解密变换建立在数组的基础上 ,最后给出了一个完整的加、解密方案更多还原

【Abstract】 Hash function is formed based on pseudorandom number series,and user’s password is mapped,then the file is encrypted by use of the generated mapping cryptographic key.The file is totally read and written by binary,the encryption and decryption manipulation is set based on array through conversing file to bite array and array to file.A complete encryption and decryption scheme is finally given.更多还原