日期:2014-05-18 浏览次数:20517 次
<%@ Page Language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> static public string PasswordEncrypt(string origPassword) { string stemp; int i; int l; int x; int y; Random rand = new Random(DateTime.Now.Hour * DateTime.Now.Minute * DateTime.Now.Second); stemp = origPassword.Trim(); l = stemp.Length; if (l > 15 || l == 0) { return stemp; } else { string returnV = null; returnV = Convert.ToChar(l + 100).ToString(); for (i = 2; i <= 16 - l; i++) { returnV += Convert.ToChar(Convert.ToInt32(Math.Truncate((double)(24 * rand.NextDouble()))) + 98); } for (i = 17 - l; i <= 16; i++) { //注意Substring的索引是从0开始,而asp是从1开始 x = Convert.ToInt32(Convert.ToChar(stemp.Substring(i + l - 17, 1))); if ((x >= 48 && x <= 57) || (x >= 113 && x <= 122)) { y = 170 - x; } else if ((x >= 65 && x <= 80) || (x >= 97 && x <= 112)) { y = 177 - x; } else { y = 171 - x; } returnV += Convert.ToChar(y); } return returnV; } } static public string passwordDeEncrypt(string XPassword) { string passwordDeEncrypt = ""; int L = XPassword.Length; int X, Y; if (L != 16) { return XPassword; } else { L = (int)XPassword[0] - 100; for (int I = (16 - L + 1); I < 17; I++) { X = (int)XPassword[I - 1]; if ((X >= 48 && X <= 57) || (X >= 113 && X <= 122)) { Y = 170 - X; } else if ((X >= 65 && X <= 80) || (X >= 97 && X <= 112)) { Y = 177 - X; } else { Y = 171 - X; } passwordDeEncrypt = passwordDeEncrypt + ((char)Y).ToString(); } } return passwordDeEncrypt; } protected void Button1_Click(object se