<div dir="ltr"><div>There are a few sensible password generators that disallow the use of ambiguous characters like I (lowercase L),l (capital i) ,1 (digit),0 (digit),O (capital o) for that very reason.</div><div><br></div><div>I wish CAPTCHA codes would use some sense to avoid using ambiguous characters like those.</div><div><br></div><div>[OT] It would be a good programming exercise for SD kids to write code to generate random, unambiguous password strings of a given length.</div><div><br></div><div>Mark</div><div class="gmail_extra"><br><div class="gmail_quote">On 9 May 2017 at 13:20, ken price <span dir="ltr"><<a href="mailto:kenjprice@gmail.com" target="_blank">kenjprice@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>At one point in the past I was involved in creating usernames for students for a temporary system. We used the first 3 letters of given name followed by some digits. Hence Mark might have username Mar123</div><div><br></div><div>We had one student with first name, "ilona"</div><div>( I had to write that in lower case to avoid the problem I am about to describe)</div><div>The digits added turned out to be 110</div><div><br></div><div>So her username for her was Ilo110</div><div><br></div><div>Depending on typeface (and your mail client may use an offending typeface) this may appear identical to 110110, LLOLLO or various other permutations of 1, L, o and 0</div><div><br></div><div>Unfortunately the typeface chosen for the handouts to be given to students rendered lowercase L and numeral 1 identically, and upper case letter o and numeral zero identically.</div><div><br></div><div>It did take some time for the student to figure out the username assigned to her. I think she had a good sense of humour about it, but it does illustrate the typeface problem.</div><div><br></div><div>Ironically we had taken care to make the passwords unambiguous.</div><span class="HOEnZb"><font color="#888888"><div><br></div><div>Kp</div><div><br></div><div><br></div></font></span><div><br><div class="gmail_quote"><span class=""><div>On Mon, 8 May 2017 at 10:37 pm, Mark <<a href="mailto:mark@vceit.com" target="_blank">mark@vceit.com</a>> wrote:<br></div></span><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="h5">Here's an example of choosing designing test data, and how good test data deliberately aims to find the weaknesses and faults of a solution.<div><br></div><div>In this case, <b>fonts</b> are being tested by thinking up the most awkward words possible to see if they render properly in that font.</div><div><br></div><div><a href="https://www.wired.com/2017/05/weird-words-phrases-designers-use-test-fonts/" target="_blank">https://www.wired.com/2017/05/<wbr>weird-words-phrases-designers-<wbr>use-test-fonts/</a><br clear="all"><div><br></div>-- <br><div class="m_-4027138046731026406m_2464558863628361430gmail_signature"><div><i><br></i></div><div><span style="font-size:12.8px">Mark Kelly</span><br></div><div><br></div><div><a href="mailto:mark@vceit.com" style="font-size:12.8px" target="_blank">mark@vceit.com</a><br></div><div><a href="http://vceit.com" target="_blank">http://vceit.com</a></div><div><br></div><div>Powered by <b>sans serif.</b></div><div><b><br></b></div><div><br></div></div></div></div></blockquote></div></div><div class="HOEnZb"><div class="h5"><div dir="ltr">-- <br></div><div data-smartmail="gmail_signature"><div dir="ltr"><div>-- <br>Dr Ken Price MACS(Snr) CP ACCE Professional Associate.<br>Immediate Past President, TASITE <a href="http://www.tasite.tas.edu.au" target="_blank">http://www.tasite.tas.edu.au</a></div></div></div>
</div></div><br></blockquote></div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><i><br></i></div><div><span style="font-size:12.8px">Mark Kelly</span><br></div><div><br></div><div><a href="mailto:mark@vceit.com" style="font-size:12.8px" target="_blank">mark@vceit.com</a><br></div><div><a href="http://vceit.com" target="_blank">http://vceit.com</a></div><div><br></div><div>Powered by <b>ambiguity.</b></div><div><b><br></b></div><div><b><br></b></div><div><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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