MembershipUser user = Membership.GetUser("username");
string password = user.GetPassword();
string saferPassword = user.GetPassword("password answer");

<membership defaultProvider="myProvider">
      <providers>
        <add connectionStringName="LocalSqlServer" enablePasswordRetrieval="true"
          enablePasswordReset="true" requiresQuestionAndAnswer="true"
          applicationName="/" requiresUniqueEmail="false" passwordFormat="Encrypted"
          maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6"
          minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10"
          passwordStrengthRegularExpression="" name="myProvider"
          type="System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />

     </providers>

</membership>