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ASP.NET SOX Password Policy Enforcement
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TOPIC: ASP.NET SOX Password Policy Enforcement

ASP.NET SOX Password Policy Enforcement 08 Dec 2009 07:31 #47

This ASP.NET script implements SOX compliant password enforcement. In this script passwords must contain minimum of 6 characters and satisfy 3 out of 4 rules below 1.Must contain Special characters 2.Must contain Upper case 3.Must contain Lower case 4.Must contain Numerics

Instructions: The first line in the .aspx file is the textbox where the password is entered. The first RegularExpressionValidator tests to make sure the password is at least 6 characters. The last RegularExpressionValidator contains the regex that validates that the password meets at least 3 of the 4 criteria:
1.Must contain Special characters
2.Must contain Upper case
3.Must contain Lower case
4.Must contain Numerics 

 
<asp:TextBox ID="NewPass" runat="server" TextMode="Password" />
 
<asp:RequiredFieldValidator runat="server" ID="reqNewPass" Display="Dynamic"
    ControlToValidate="NewPass"    
    ErrorMessage = "You must provide a New Password!" />
<asp:RegularExpressionValidator ID="regexpPass" runat="server" display="Dynamic"
    ControlToValidate="NewPass" 
    ErrorMessage="Password must contain at least 6 nonblank characters." 
    ValidationExpression="[^\s]{6,255}" meta:resourcekey="regexpPassResource1" /></asp:PlaceHolder>
<asp:RegularExpressionValidator ID="regexpNewPass" runat="server" display="Dynamic"
    ControlToValidate="NewPass" 
    ErrorMessage="Password must contain 3 of the following characters: an upper-case, lower-case, number, and a special character."
    ValidationExpression="((?=.*\d)(?=.*[A-Z])(?=.*[a-z])|(?=.*\d)(?=.*[^A-Za-z0-9])(?=.*[a-z])|(?=.*[^A-Za-z0-9])(?=.*[A-Z])(?=.*[a-z])|(?=.*\d)(?=.*[A-Z])(?=.*[^A-Za-z0-9]))^.*" />
 
 
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