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POFormsAuthentication.Decrypt always returns null
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  1. POFormsAuthentication.Decrypt always returns null
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    copied!<p>I'm trying to create a FormsAuthenticationTicket object by decrypting the authentication cookie string using the following approach:</p> <pre><code>Cookie securityContextCookie = cookies["myCookie"]; FormsAuthenticationTicket ticket = FormsAuthentication.Decrypt(securityContextCookie.Value); // ticket returns null even with a valid encrypted cookie string </code></pre> <p>Config:</p> <pre><code>&lt;roleManager enabled="true" defaultProvider="WebRoleProvider"&gt; &lt;providers&gt; &lt;clear /&gt; &lt;add name="WebRoleProvider" type="Framework.Security.Providers.WebRoleProvider" connectionStringName="aspnetdb" applicationName="TestApp" /&gt; &lt;/providers&gt; &lt;/roleManager&gt; &lt;membership defaultProvider="WebMembershipProvider" userIsOnlineTimeWindow="15"&gt; &lt;providers&gt; &lt;clear /&gt; &lt;add name="WebMembershipProvider" type="Framework.Security.Providers.WebMembershipProvider" connectionStringName="aspnetdb" applicationName="TestApp" enablePasswordRetrieval="true" enablePasswordReset="true" requiresQuestionAndAnswer="true" requiresUniqueEmail="true" passwordFormat="Clear" /&gt; &lt;/providers&gt; &lt;/membership&gt; &lt;machineKey decryption="3DES" decryptionKey="..." validation="3DES" validationKey="..." /&gt; &lt;authentication mode="Forms"&gt; &lt;forms defaultUrl="dashboard" loginUrl="login" timeout="20" /&gt; &lt;/authentication&gt; </code></pre> <p> </p> <p>Login Form:</p> <pre><code>&lt;asp:Login ID="Login1" runat="server" MembershipProvider="WebMembershipProvider" Font-Size="13px" TextLayout="TextOnTop" LoginButtonType="Image" LoginButtonText="" LoginButtonImageUrl="~/Content/Images/login-button.png" LabelStyle-HorizontalAlign="Left" LoginButtonStyle-CssClass="" ToolTip="Log In" RememberMeText="Remember me?" FailureAction="Refresh" TitleText=""&gt; &lt;TextBoxStyle Font-Size="13px" BorderStyle="Solid" BorderWidth="1px" Width="385px" Height="20px" BorderColor="#e1e4ea" CssClass="login-form-textboxes" /&gt; &lt;LoginButtonStyle Font-Names="Verdana" /&gt; &lt;InstructionTextStyle Font-Italic="False" ForeColor="#464749" Font-Size="12px" /&gt; &lt;LabelStyle Font-Size="11px" ForeColor="#939598" Font-Bold="true" CssClass="login-form-labels" /&gt; &lt;TitleTextStyle Font-Bold="True" Font-Size="14px" ForeColor="#464749" /&gt; &lt;CheckBoxStyle CssClass="login-form-checkboxes" /&gt; &lt;/asp:Login&gt; </code></pre> <p>Even though the value of securityContextCookie looks like a valid encrypted cookie string I keep getting null back for ticket...</p> <p>Any idea what might cause the issue?</p> <p>Thanks for you help</p>
 

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