From: "Antti Kurenniemi" 

"Mike N."  wrote in message
news:c66k2297chhm4f0rcbcbvmdgiv9pqgpr08{at}4ax.com...
>>But doesn't the first part, the identifying, sort of fail if you always
>>sign
>>your messages? I mean, what's to stop me from copying your signature and
>>sending a message as Chris, which someone would the look up and confirm
>>that
>>yes, this is indeed from Chris?
>
>   Because the signature also includes a hash of the message content.  The
> worst you could do is replay the message exactly, but it would still be
> the
> original message with the same signature.   Any change to the message
> content will cause the signature to fail.

Righty-ho, that makes sense. Thanks.


Antti Kurenniemi

--- BBBS/NT v4.01 Flag-5