How does one create a digital signature
Sunday, March 16, 20087:23 PMLee [EMAIL PROTECTED]
>She who is called by the name Anne Cartwright asked:
>
>> Is there some way to back track e-mail spoofing to see where it is
>> coming from?
>>
>> I keep getting spam that appears to be from me however it is not. I
>> assume someone who has my e-mail address in their address book has a
>> virus or worm in their computer that is using e-mail addresses from
>> that person's address book in the "FROM" field of spam messages.
>
>
>It's probably not possible to track it down, unless you can get your
>hands on the full headers of the email. Even then, it's often a puzzle.
>
>It could be coming from an infected machine that has email from you on
>board, or your address in an address book. More likely, it's being
>generated by one of those huge spambots that contain tens of thousands
>of Windows machines. The botmasters scrape all the files they can find
>on the Internet to collect email addresses, and they have millions.
>They not only use these addresses as targets for their spam, but they
>also use them as return addresses.
>
>I was having lots of problems with this a couple of years ago. Every
>day, I'd get dozens of bounces from bad email addresses to which I'd
>never sent mail. To stop this, I got really aggressive about making
>sure my email addresses don't appear on the Web in open form. On my
>Web pages I use a little Javascript [1] so any person reading the page
>can still see my address, but the automated scrapers are less likely
>to notice it. I also don't post to any site that doesn't obscure the
>address. It took a few months to catch hold, but it's really helped.
>
>One other thing I do is attach a digital signature to almost all my
>email. A digital signature is very difficult to fake -- probably much
>harder than a written signature. This won't cut down on the spoofing,
>but it will settle any question about whether the email actually came
>from me.
>
>[1] <script type="text/javascript"><!--
> var name = "llarson";
> var domain = "louisville.edu";
> document.write('<a href=\"mailto:' + name + '@' + domain + '\">');
> document.write(name + '@' + domain + '</a>');
>// --></script>
>
>_______________________________________________
>The next Louisville Computer Society meeting will
>be March 25 at MacAuthority, 128 Breckinridge Lane.
>Posting address: [email protected]
>Information: http://www.math.louisville.edu/mailman/listinfo/macgroup
_______________________________________________
The next Louisville Computer Society meeting will
be March 25 at MacAuthority, 128 Breckinridge Lane.
Posting address: [email protected]
Information: http://www.math.louisville.edu/mailman/listinfo/macgroup
