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using System; using System.Security.Cryptography; using System.Text; using System.IO; using System.Windows.Forms; namespace Curllion { public class Crypt { private byte[] key; private byte[] iv; private System.Text.ASCIIEncoding asciiEncoding; private System.Text.UnicodeEncoding textConverter; private RC2CryptoServiceProvider rc2CSP; public Crypt() { InitializeComponent(); } private void InitializeComponent() { key = new byte[]{106,51,25,141,157,142,23,111,234,159,187,154,215,34,37,204}; iv = new byte[]{135,186,133,136,184,149,153,144}; asciiEncoding = new System.Text.ASCIIEncoding(); textConverter = new System.Text.UnicodeEncoding(); rc2CSP = new RC2CryptoServiceProvider(); } /// <summary> /// 新建一个大小为10261B的文件，以便将加密数据写入固定大小的文件。 /// </summary> /// <param name="filePath">文件保存的地址，包含文件名</param> public void InitBinFile(string filePath) { byte[] tmp = new byte[10261]; try //创建文件流，将其内容全部写入0 { System.IO.FileStream writeFileStream = new FileStream(filePath, System.IO.FileMode.Create, System.IO.FileAccess.Write, System.IO.FileShare.None,512,false); for(int i = 0 ;i< 10261;i++) tmp[i] = 0; writeFileStream.Write(tmp,0,10261); writeFileStream.Flush(); writeFileStream.Close(); } |