To address the Perl question first, once you determine what characters are allowable in passwords, just use an inverted character class to determine if any unacceptable characters are supplied. To invert a character class, add a caret to the front of it. For example,
# Just add any other valid characters after the \w
if($password =~ /[^\w]/) {
# invalid character supplied
}
As for what characters to allow...are you asking about password strength for heightening security? I'm not aware if there's an industry standard, but I've often seen password schemes that require picking at least 3 different characters classes (where the four classes are often uppercase, lowercase, punctuation and numbers).
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|