Re: Invalid cert on IMAP

2006-09-13 Thread Thomas Fernandez
Hello Gary,

On Tue, 12 Sep 2006 16:52:48 -0500 GMT (13/09/2006, 04:52 +0700 GMT),
Gary wrote:

G The protocol as you call it, (SSL, TLS) does not define that the certs have
G to be valid, never has.  It is the client, TB!, that has decided for me not
G to accept it. It should be always up to the user to accept *any* cert. Every
G email client I have ever used with IMAP (about 30+ of them), over the last
G 10 years, allows one to accept a cert for whatever reason, if I so choose,
G either on a temp or permanent basis, EXCEPT TB!

I don't know about IMAP. But I second the motion that the user should
have the option to accept an invalid certificate, for whatever reason.

It's the user's responsibility if he compromises his system, and I am
certainly against being nannied by a software that is used by email
professionals.

-- 

Cheers,
Thomas.

SYMPTOM: Floor blurred. FAULT: You are looking through bottom of empty
glass. ACTION: Get someone to buy you another beer.
http://thomas.fernandez.hat-gar-keine-homepage.de/

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Re: Invalid cert on IMAP

2006-09-13 Thread Gary
On Wed, Sep 13, 2006 at 08:00:20PM +0700 or thereabouts, Thomas Fernandez wrote:

Hi Thomas,
 
 On Tue, 12 Sep 2006 16:52:48 -0500 GMT (13/09/2006, 04:52 +0700 GMT),
 Gary wrote:
 
 G The protocol as you call it, (SSL, TLS) does not define that the certs have
 G to be valid, never has.  It is the client, TB!, that has decided for me not
 G to accept it. It should be always up to the user to accept *any* cert. 
 Every
 G email client I have ever used with IMAP (about 30+ of them), over the last
 G 10 years, allows one to accept a cert for whatever reason, if I so choose,
 G either on a temp or permanent basis, EXCEPT TB!
 
 I don't know about IMAP. But I second the motion that the user should
 have the option to accept an invalid certificate, for whatever reason.

hear, hear :)
 
 It's the user's responsibility if he compromises his system, and I am
 certainly against being nannied by a software that is used by email
 professionals.

In the case of email, there is really nothing to compromise... I or anyone
still has to authenticate into the system. SSL just provides me a way so
that no one else can possibly listen in :)  

Sometimes you will come across a website using SSL, and your browser will
tell you the cert is outdated or does not match, or whatever reason... you
certainly have the option to click through this to see or use the site.
This is similar to email, in that you have an option to use the cert or
not, and you still have the original intended security as you have to
auth... 

I could not agree with you more on your above statement :)  The reality of
it is that I cannot use it because of they way it is currently, and this
is crazy.  I just love it when a program tries to protect me from myself..
let alone the fact that I have been building IMAP, email, DNS servers
professionally now in Unix/Linux, for what... 8 or 10 years. 

-- 
Gary



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Re: Invalid cert on IMAP

2006-09-12 Thread Raymund Tump
Hi Gary!

 This is wrong.. it should ***ALWAYS*** be left to the user to decide
 whether to continue to use any cert, whether expired, or incorrect name, or
 whatever reason

Well, that depends on the protocol. It is not always up to the user to
decide if the protocol (SSL, TLS, whatever) has defined that all certs
used have to be valid and an expired cert isn't valid.

What if a user can use even an revoked certificate? That would break
any security policies.

-- 
Regards,
Raymund



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Re: Invalid cert on IMAP

2006-09-12 Thread Gary
Hi Raymund,

On  Tue, 12 Sep 2006 23:28:20 +0200 UTC (9/12/2006, 4:28 PM -0500 UTC my
time), Raymund Tump wrote:

 This is wrong.. it should ***ALWAYS*** be left to the user to decide
 whether to continue to use any cert, whether expired, or incorrect name, or
 whatever reason

R Well, that depends on the protocol.

what protocol is that?  RFC 2060 or 3501, or what?

R  It is not always up to the user to decide if the protocol (SSL, TLS,
R whatever) has defined that all certs used have to be valid and an expired
R cert isn't valid.

The protocol as you call it, (SSL, TLS) does not define that the certs have
to be valid, never has.  It is the client, TB!, that has decided for me not
to accept it. It should be always up to the user to accept *any* cert. Every
email client I have ever used with IMAP (about 30+ of them), over the last
10 years, allows one to accept a cert for whatever reason, if I so choose,
either on a temp or permanent basis, EXCEPT TB!

R What if a user can use even an revoked certificate? That would break
R any security policies.

what security policies in IMAP(s)? Any user who has an IMAP account, has to
provide auth to get into his account in the first place.  SSL provides a
secure mechanism for this, that's all it does.  If this server was set up to
provide just normal IMAP on port 143, I would have no problems getting in.

Like I said, TB! is keeping me from making that decision, and I cannot log
onto a remote IMAPs account, even though I have to be authorized by passwrd
... so TB! is useless to me currently.


-- 
Gary






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Invalid cert on IMAP

2006-09-08 Thread Gary
Hi ya'll,

  Well, just installed the new TB, and I logged onto a distant IMAPS server
using SSL on port 993... just like I have done for years...

Since the 2 year SSL cert has just expired on this server, I cannot log on,
(set up for SSL only) as TB says handshake failure. invalid server
cert... (cert has expired).. even though the cert is in my root cert chain
in TB, and has been for years.

This is wrong.. it should ***ALWAYS*** be left to the user to decide
whether to continue to use any cert, whether expired, or incorrect name, or
whatever reason now, I cannot use IMAPS with this one remote IMAPS
server because it just expired.. nothing ticks me off more than a
program trying to protect me from something. No other IMAP client does this.
So just how am I supposed to get my mail from this IMAPS server during the
weekend, or until the owner of the server changes his cert? Answer, use a
IMAP efficient client.

I should decide what I want to use and when regarding certs, not TB!  TB! is
useless for me currently.

-- 
Regards,
 Gary   






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