> -----Original Message-----
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of 
> [EMAIL PROTECTED]
> Sent: Wednesday, 6 December 2006 12:16 PM
> 
> But dont you need one of those little gadgets for the 
> computer from the HeSA
> to enable Sending?    ie a HeSA Certificate?  Not just what 
> Argus sends.

No, you do not need one of HeSA's little gadgets in order to send
messages via Argus.

The little gadget is needed *only* if you want to digitally sign a
message.

Note that encryption and digital signing are two different and
independent processes.  Messages can be:

- encrypted but not signed;
- signed but not encrypted;
- both encrypted and signed;
- neither encrypted nor signed.

Encryption is done by using the *recipient's* (not your own) public key
of their digital certificate (which can be either a location certificate
or an individual certificate).

Signing is done by using the private key of your own *individual*
certificate.  Messages cannot be signed by using a location certificate.

Simple, innit?


Oliver Frank, general practitioner
255 North East Road, Hampstead Gardens
South Australia 5086
Ph. 08 8261 1355  Fax 08 8266 5149  M 0407 181 683
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