FormsAuthentication.Encrypt メソッド
FormsAuthenticationTicket を指定すると、HTTP Cookie で使用するために適した暗号化認証チケットを格納している文字列を生成します。
Public Shared Function Encrypt( _
ByVal ticket As FormsAuthenticationTicket _) As String
[C#]
public static string Encrypt(FormsAuthenticationTicketticket);
[C++]
public: static String* Encrypt(FormsAuthenticationTicket* ticket);
[JScript]
public static function Encrypt(
ticket : FormsAuthenticationTicket) : String;
パラメータ
- ticket
認証チケット クラス。
戻り値
暗号化された認証チケットを格納している文字列。
使用例
<%@ Page Language="VB" AutoEventWireup="true" %>
<script runat="server">
Function Authenticated(email As String, password As String) As Boolean
' This method authenticates the user for the application.
' In this demonstration application it always returns
' true.
Return True
End Function
Sub Login_Click(sender As Object, e As EventArgs)
' Create a custom FormsAuthenticationTicket containing
' application specific data for the user.
Dim email As String = UserEmail.Text
Dim password As String = UserPass.Text
Dim isPersistent As Boolean = Persist.Checked
if Authenticated(email,password) Then
Dim userData As String = "ApplicationSpecific data for this user."
Dim ticket As New FormsAuthenticationTicket( _
1, _
email, _
System.DateTime.Now, _
System.DateTime.Now.AddMinutes(30), _
isPersistent, _
userData, _
FormsAuthentication.FormsCookiePath)
' Encrypt the ticket.
Dim encTicket As String = FormsAuthentication.Encrypt(ticket)
' Create the cookie.
Response.Cookies.Add(new HttpCookie(FormsAuthentication.FormsCookieName, encTicket))
' Redirect back to original URL.
Response.Redirect(FormsAuthentication.GetRedirectUrl(email,isPersistent))
End If
End Sub
</script>
<html>
<head>
<title>Forms Authentication Login</title>
</head>
<body>
<form runat="server">
<span style="BACKGROUND: #80ff80">
<h3>Login Page</font>
</h3>
</span>
<table>
<tbody>
<tr>
<td>
e-mail:</td>
<td>
<asp:TextBox id="UserEmail" type="text" runat="server" /></td>
<td>
<asp:RequiredFieldValidator id="RequiredFieldValidator1" runat="server" ErrorMessage="*" Display="Static" ControlToValidate="UserEmail"></ASP:RequiredFieldValidator>
</td>
<td>
<asp:RegularExpressionValidator id="RegexValidator" runat="server" ErrorMessage="Invalid format for e-mail address." Display="Static" ControlToValidate="UserEmail" EnableClientScript="false" ValidationExpression="^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$"></asp:RegularExpressionValidator>
</td>
</tr>
<tr>
<td>
Password:</td>
<td>
<asp:TextBox id="UserPass" TextMode="Password" runat="server" /></td>
<td>
<ASP:RequiredFieldValidator id="RequiredFieldValidator2" runat="server" ErrorMessage="*" Display="Static" ControlToValidate="UserPass"></ASP:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
Persistent Cookies:</td>
<td>
<asp:CheckBox id="Persist" runat="server" autopostback="true"></ASP:CheckBox>
</td>
<td>
</td>
</tr>
</tbody>
</table>
<input type="submit" value="Login" runat="server" onserverclick="Login_Click" />
<p>
<asp:Label id="Msg" runat="server" ></asp:Label>
</p>
</form>
</body>
</html>
[C#]
<%@ Page Language="C#" AutoEventWireup="true" %>
<script runat="server">
private bool Authenticated(string email, string password)
{
// This method authenticates the user for the application.
// In this demonstration application it always returns
// true.
return true;
}
private void Login_Click(Object sender, EventArgs e)
{
// Create a custom FormsAuthenticationTicket containing
// application specific data for the user.
string email = UserEmail.Text;
string password = UserPass.Text;
bool isPersistent = Persist.Checked;
if (Authenticated(email,password)) {
string userData = "ApplicationSpecific data for this user.";
FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(
1,
email,
System.DateTime.Now,
System.DateTime.Now.AddMinutes(30),
isPersistent,
userData,
FormsAuthentication.FormsCookiePath);
// Encrypt the ticket.
string encTicket = FormsAuthentication.Encrypt(ticket);
// Create the cookie.
Response.Cookies.Add(new HttpCookie(FormsAuthentication.FormsCookieName, encTicket));
// Redirect back to original URL.
Response.Redirect(FormsAuthentication.GetRedirectUrl(email,isPersistent));
}
}
</script>
<html>
<head>
<title>Forms Authentication Login</title>
</head>
<body>
<form runat="server">
<span style="BACKGROUND: #80ff80">
<h3>Login Page</font>
</h3>
</span>
<table>
<tbody>
<tr>
<td>
e-mail:</td>
<td>
<asp:TextBox id="UserEmail" type="text" runat="server" /></td>
<td>
<asp:RequiredFieldValidator id="RequiredFieldValidator1" runat="server" ErrorMessage="*" Display="Static" ControlToValidate="UserEmail"></ASP:RequiredFieldValidator>
</td>
<td>
<asp:RegularExpressionValidator id="RegexValidator" runat="server" ErrorMessage="Invalid format for e-mail address." Display="Static" ControlToValidate="UserEmail" EnableClientScript="false" ValidationExpression="^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$"></asp:RegularExpressionValidator>
</td>
</tr>
<tr>
<td>
Password:</td>
<td>
<asp:TextBox id="UserPass" TextMode="Password" runat="server" /></td>
<td>
<ASP:RequiredFieldValidator id="RequiredFieldValidator2" runat="server" ErrorMessage="*" Display="Static" ControlToValidate="UserPass"></ASP:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
Persistent Cookies:</td>
<td>
<asp:CheckBox id="Persist" runat="server" autopostback="true"></ASP:CheckBox>
</td>
<td>
</td>
</tr>
</tbody>
</table>
<input type="submit" value="Login" runat="server" onserverclick="Login_Click" />
</form>
</body>
</html>
[C++, JScript] C++ および JScript のサンプルはありません。Visual Basic および C# のサンプルを表示するには、このページの左上隅にある言語のフィルタ ボタン .gif)
をクリックします。
必要条件
プラットフォーム: Windows 2000, Windows XP Professional, Windows Server 2003 ファミリ
参照
FormsAuthentication クラス | FormsAuthentication メンバ | System.Web.Security 名前空間