Jerry typing away here, though I am sure Lee will pipe up when he has a 
chance.


There are some pretty good tutorials about digital signatures out there:

http://joar.com/certificates/
or
http://www.macmerc.com/articles/Power_User_Monday_Tip_of_the_Week/226


There is not much need to sign messages sent to the users group, but if 
you choose to do so, then go ahead. The software running this show has 
been upgraded to work with differing signature schemes (this message is 
signed for instance).

One thing I should point out about getting a signature. It is flat out 
recommended that you get different signatures for using different email 
addresses but if you want to use the same email address on different 
machines, then you can use the same signature also on the different 
machines. To do this means you will have to export the signature to the 
various machines you will use it on. Safari (at least last time I 
checked) does not allow the signature to be saved in a manner that 
makes this easy to do (nor does Keychain).

So if you need to use the things in multiple places follow the 
instructions using Mozilla to get your signature:

http://joar.com/certificates/mozilla.html


                                Jerry

On Nov 09, 2004, at 5:21 PM, Marta Edie wrote:

> Lee, how do we go about digitally signing mail and does it work 
> through our group mail now? I remember it doing "things" to the 
> program when Bill signed digitally and did not turn it off first 
> posting to the group?
> Marta
> On Nov 9, 2004, at 13:01, Lee Larson wrote:
>
>> On Nov 9, 2004, at 12:05 PM, S. Blake smelled something:
>>
>>> Something fishy is going on here, but I don't know what.  This 
>>> "sender" copied my e-mail address.  I have also gotten a bounce-back 
>>> that I was supposed to have sent to someone in my address book-- but 
>>> with the prefix 3D.
>>
>> You can probably thank one of your Windows-using friends for this. 
>> There are several worms and viruses on Windows that search the 
>> infected machine for e-mail addresses. When it finds your address, it 
>> sends out an infected e-mail that looks like it came from you.
>>
>> There are also spammers who use this technique.
>>
>> This is why some of us champion digitally signed mail. If everyone 
>> signed their mail, this type of spoofing would go away because we 
>> could just throw away mail that wasn't signed. The spoofing program 
>> cannot duplicate your signature.
-----------------------------------
Someday, I will come up with a clever signature line. I am not sure if 
I will use it or not, but I will come up with one.
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