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Old 08-16-2005, 12:58 AM   #1
Default CA Q


By using Certification Authority on WIN2K3 server, does all data become
encrypted between those with certificates?




Rome
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Old 08-16-2005, 03:10 AM   #2
The Rev [MCT]
 
Posts: n/a
Default Re: CA Q
Data is encrypted with a users Public Key or Certificate, which has been
signed by the CA. If it's an email you would encrypt it with my Public Key.

If I'm using encrypted files on my windows box then I'm using a certificate
I requested from the CA. As far as data being encrypted between users with
certificates, do you mean network traffic? as in IP Security? If so that
depends on the IP Sec Policy set for each system. If you mean email, it
depends if you are forcing encryption for the Exchange Organization. More
information is really required to help answer your question.

--
rev

MCT/MCNGP #44
..
"Rome" <> wrote in message
news:%...
> By using Certification Authority on WIN2K3 server, does all data become
> encrypted between those with certificates?
>




The Rev [MCT]
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Old 08-16-2005, 06:40 AM   #3
Ben Smith
 
Posts: n/a
Default Re: CA Q
In article <#>, coolromeo29
@yahoo.com says...
> By using Certification Authority on WIN2K3 server, does all data become
> encrypted between those with certificates?
>
>
>


Not quite. Public and private keys (as well as generated session keys)
are used by services for encryption and authentication. The MSPress
Security+ book has a really good overview of how encryption works. (I
wrote that chapter).


Ben Smith
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Old 08-16-2005, 07:06 AM   #4
Rome
 
Posts: n/a
Default Re: CA Q
So far I understand the whole concept of public & private keys, but I guess
my real question is in what situations would you use CA. The only scenario
that I've done so far is issue a certificate to my IIS webserver. In what
other cases can you use CA.


"Ben Smith" <> wrote in message
news: om...
> In article <#>, coolromeo29
> @yahoo.com says...
>> By using Certification Authority on WIN2K3 server, does all data become
>> encrypted between those with certificates?
>>
>>
>>

>
> Not quite. Public and private keys (as well as generated session keys)
> are used by services for encryption and authentication. The MSPress
> Security+ book has a really good overview of how encryption works. (I
> wrote that chapter).





Rome
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Old 08-16-2005, 11:39 AM   #5
catwalker63
 
Posts: n/a
Default Re: CA Q
"Rome" <> prattled ceaslessly in
news:#:

> So far I understand the whole concept of public & private keys, but I
> guess my real question is in what situations would you use CA. The
> only scenario that I've done so far is issue a certificate to my IIS
> webserver. In what other cases can you use CA.
>


You can use it to issue all manner of public key certificates. Start
here:

http://www.microsoft.com/technet/pro...003/library/Te
chRef/7cb7e9f7-2090-4c88-8d14-270c749fddb5.mspx

or

http://tinyurl.com/d4375

A little searching on your part should turn up numerous other resources
on the subject.

--
Catwalker
aka Pu$$y Feet
BS, MCP, MCSA, MCSE
MCNGP #43
www.mcngp.com
faq.mcngp.com
"Definitely not wearing any underwear."


catwalker63
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Old 08-16-2005, 02:47 PM   #6
Ben Smith
 
Posts: n/a
Default Re: CA Q
In article <#>, coolromeo29
@yahoo.com says...
> So far I understand the whole concept of public & private keys, but I guess
> my real question is in what situations would you use CA. The only scenario
> that I've done so far is issue a certificate to my IIS webserver. In what
> other cases can you use CA.


Private/Public keys are only useful if you trust that the service/person
that possesses that the private key is reasonably the party that was
issued the key and that the keys can used used for the attempted
operation. This is where certification authorities come into play - they
provide the trust structure.

For example, I send you a digitally signed e-mail, which means I have
signed the message by using my private key that was associated with a
certificate issued to me by Microsoft, which in turn, came from an
issuing CA which received it cert from a public CA (GTE, Thawte,
Verisign, etc...) Because you trust the root public CA that my cert
chains to, you accept that I am the person that the private keys where
issued to. (meaning that you have some assurance that I really am Ben
Smith). Your computer trusts all CAs in its Trusted Roots.

You need CAs for any kind of distributed encryption/authentication -
SSL, IPSec, Smart Card, Client Auth, 802.1x, S/MIME, etc...

The alternative model is web of trust, which is as best described by one
security expert I know as "completely 14th century."

>
>
> "Ben Smith" <> wrote in message
> news: om...
> > In article <#>, coolromeo29
> > @yahoo.com says...
> >> By using Certification Authority on WIN2K3 server, does all data become
> >> encrypted between those with certificates?
> >>
> >>
> >>

> >
> > Not quite. Public and private keys (as well as generated session keys)
> > are used by services for encryption and authentication. The MSPress
> > Security+ book has a really good overview of how encryption works. (I
> > wrote that chapter).

>
>
>



Ben Smith
  Reply With Quote
Old 08-16-2005, 02:50 PM   #7
The Rev [MCT]
 
Posts: n/a
Default Re: CA Q
Yeah... I'm gonna start a new Root CA company. Revisign, think anyone will
trust me?

--
rev

MCT/MCNGP #44
..
"Ben Smith" <> wrote in message
news: om...
> In article <#>, coolromeo29
> @yahoo.com says...
>> So far I understand the whole concept of public & private keys, but I
>> guess
>> my real question is in what situations would you use CA. The only
>> scenario
>> that I've done so far is issue a certificate to my IIS webserver. In what
>> other cases can you use CA.

>
> Private/Public keys are only useful if you trust that the service/person
> that possesses that the private key is reasonably the party that was
> issued the key and that the keys can used used for the attempted
> operation. This is where certification authorities come into play - they
> provide the trust structure.
>
> For example, I send you a digitally signed e-mail, which means I have
> signed the message by using my private key that was associated with a
> certificate issued to me by Microsoft, which in turn, came from an
> issuing CA which received it cert from a public CA (GTE, Thawte,
> Verisign, etc...) Because you trust the root public CA that my cert
> chains to, you accept that I am the person that the private keys where
> issued to. (meaning that you have some assurance that I really am Ben
> Smith). Your computer trusts all CAs in its Trusted Roots.
>
> You need CAs for any kind of distributed encryption/authentication -
> SSL, IPSec, Smart Card, Client Auth, 802.1x, S/MIME, etc...
>
> The alternative model is web of trust, which is as best described by one
> security expert I know as "completely 14th century."
>
>>
>>
>> "Ben Smith" <> wrote in message
>> news: om...
>> > In article <#>, coolromeo29
>> > @yahoo.com says...
>> >> By using Certification Authority on WIN2K3 server, does all data
>> >> become
>> >> encrypted between those with certificates?
>> >>
>> >>
>> >>
>> >
>> > Not quite. Public and private keys (as well as generated session keys)
>> > are used by services for encryption and authentication. The MSPress
>> > Security+ book has a really good overview of how encryption works. (I
>> > wrote that chapter).

>>
>>
>>




The Rev [MCT]
  Reply With Quote
Old 08-16-2005, 02:56 PM   #8
Neil
 
Posts: n/a
Default Re: CA Q
did you hear Ben Smith <> say in
news: om:

> "completely 14th century."


ooooooooo, cool! So when willl MS be shipping that?



--
Neil MCNGP#30
- Good pings come in small packets


Neil
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Old 08-16-2005, 02:57 PM   #9
Neil
 
Posts: n/a
Default Re: CA Q
did you hear "The Rev [MCT]" <> say in
news::

> hink anyone will
> trust me?
>


were you expecting us to start?

--
Neil MCNGP#30
- If you can't be offensive WHY BOTHER?


Neil
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Old 08-16-2005, 02:58 PM   #10
Ben Smith
 
Posts: n/a
Default Re: CA Q
In article <>,
says...
> Subject: Re: CA Q
> From: The Rev [MCT] <>
> Newsgroups: microsoft.public.cert.exam.mcse
>
> Yeah... I'm gonna start a new Root CA company. Revisign, think anyone will
> trust me?
>
> --
> rev
>
> MCT/MCNGP #44
>


Because this stuff is so complicated, I bet lots of people would trust
you.


Ben Smith
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