Hey Folks,

I'm once again confused about digital certificates (those things that 
allow emails to be signed and encrypted) and Mac OS X.

1. If I use mail from multiple computers, how do I put the same digital 
signature on my emails regardless of location?

2. Suppose I send a signed message to, say, Lee, from my machine at 
work. Lee then responds with an encrypted email. I can read the email 
at work, but because I don't have the certifications at home, I cannot 
read it at home.

What I've tried already:

What's the easiest way around this problem? A pointer to a web page 
would be fine. I searched on Google, but didn't hit on the right set of 
search terms, because I found nothing of use. I went back and read the 
oft?quoted source at
http://www.joar.com/certificates
All I found there was a reference:

Q:   I need to use my certificate on another machine. How do I export 
my certificate from my Keychain?
A:   Unfortunately the Keychain Access application currently (as of Mac 
OS X 10.3.2) doesn't know how to export a certificate into a portable 
format. The only workaround that I know of for this problem is to avoid 
downloading your certificates with Safari, and instead use Mozilla. 
Mozilla can export certificates into a format that can be imported into 
the Keychain.

Unfortunately, when I first downloaded my certificates, I used Safari. 
So... this tip is a bit late for my situation.

So... I logged in to Thawte, and clicked the button for me to fetch and 
install my two certificates (for 2 email addresses). No luck getting 
the digital sigs to work. Deleted both certificates from the keychain, 
and fetched them again. No luck.

What am I messing up?

Bill



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