Re: [Dovecot] Ideas for Webmail/OTP

2007-08-07 Thread Frank Behrens
Steffen Kaiser <[EMAIL PROTECTED]> wrote on 7 Aug 2007 10:26: > You mean, the client issues LOGIN (with a dummy password), because Dovecot > needs to aquire the OTP challenge first, this LOGIN attempt is failed, > but the username can be used to aquire the OTP challenge. It is reported > back, via

Re: [Dovecot] Ideas for Webmail/OTP

2007-08-07 Thread Steffen Kaiser
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Mon, 23 Jul 2007, Frank Behrens wrote: Solution 1: When PAM is configured for IMAP the user can use a one-time-password in the same way as before. The problem is, that the user must know the sequence number for the password (otp challenge), so

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-24 Thread Timo Sirainen
On 24.7.2007, at 15.31, Frank Behrens wrote: When you thing about it: A webmail client and the different IMAP login mechanisms fit not very well together. So some posters are right: you should better use a "real" IMAP client. But IMHO webmail is a useful solution, when you are on vacation or

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-24 Thread Frank Behrens
Jasper Bryant-Greene <[EMAIL PROTECTED]> wrote on 24 Jul 2007 23:40: > a) provide the otp sequence as a capability (e.g. X-OTP-SEQ=1234), or > > b) provide a dovecot-specific IMAP command for finding out the current >sequence value (e.g. X-OTP-SEQ) > > The sending of a dummy password to retri

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-24 Thread Frank Behrens
Charles Marcus wrote on 24 Jul 2007 6:33: > Definitely not stupid - I hope you didn't get that from my response... No, I did not read your response in that way. But the email was writte to discuss that, may be other people have much better solutions. > As a plug-in I think this would be perfect

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-24 Thread Jasper Bryant-Greene
On Tue, Jul 24, 2007 at 09:42:29AM +0300, Timo Sirainen wrote: > On Mon, 2007-07-23 at 17:15 +0200, Frank Behrens wrote: > > Solution 1: > > When PAM is configured for IMAP the user can use a one-time-password in the > > same way > > as before. The problem is, that the user must know the sequence

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-24 Thread Charles Marcus
On 7/24/2007, Frank Behrens ([EMAIL PROTECTED]) wrote: So dovecot has no errors in this context, but I believe it could be extended easily and that's why I wrote in this mailing list. My hope is, that people comment: - My ideas are stupid or not. Definitely not stupid - I hope you didn't get

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-23 Thread Timo Sirainen
On Mon, 2007-07-23 at 17:15 +0200, Frank Behrens wrote: > Solution 1: > When PAM is configured for IMAP the user can use a one-time-password in the > same way > as before. The problem is, that the user must know the sequence number for > the password > (otp challenge), so we need a way to displ

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-23 Thread Frank Behrens
Charles Marcus wrote on 23 Jul 2007 13:21: > Phillip T. George, on 7/23/2007 1:00 PM, said the following: > > SSL/TLS is not going to solve the keylogger and malware problem. > > Basically, if you're on a public (or even a friend's) computer and > > someone decides to monitor keystrokes using

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-23 Thread Phillip T. George
Joakim Ryden wrote: On Mon, July 23, 2007 10:54 am, Phillip T. George wrote: [...] Oh...also his post did include "/OTP", which unless I'm mistaken, than means Off-Topic Post ..so it doesn't really matter if it had to do with Dovecot or not, right? :) :-) I believe he was referring to

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-23 Thread Gabriel Millerd
On 7/23/07, Phillip T. George <[EMAIL PROTECTED]> wrote: > Oh...also his post did include "/OTP", which unless I'm mistaken, than means Off-Topic Post ..so it doesn't really matter if it had to do with Dovecot or not, right? :) I took it to mean one time password once i saw the context, O

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-23 Thread Joakim Ryden
On Mon, July 23, 2007 10:54 am, Phillip T. George wrote: [...] > Oh...also his post did include "/OTP", which unless I'm mistaken, than means Off-Topic Post ..so it doesn't really matter if it had to do with Dovecot or not, right? :) :-) I believe he was referring to One Time Passwords. --Jo

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-23 Thread Phillip T. George
Phillip T. George wrote: Charles Marcus wrote: Phillip T. George, on 7/23/2007 1:30 PM, said the following: Charles Marcus wrote: Phillip T. George, on 7/23/2007 1:00 PM, said the following: SSL/TLS is not going to solve the keylogger and malware problem. Basically, if you're on a public (

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-23 Thread Phillip T. George
Charles Marcus wrote: Phillip T. George, on 7/23/2007 1:30 PM, said the following: Charles Marcus wrote: Phillip T. George, on 7/23/2007 1:00 PM, said the following: SSL/TLS is not going to solve the keylogger and malware problem. Basically, if you're on a public (or even a friend's) computer

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-23 Thread Charles Marcus
Phillip T. George, on 7/23/2007 1:30 PM, said the following: Charles Marcus wrote: Phillip T. George, on 7/23/2007 1:00 PM, said the following: SSL/TLS is not going to solve the keylogger and malware problem. Basically, if you're on a public (or even a friend's) computer and someone decides t

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-23 Thread Phillip T. George
Charles Marcus wrote: Phillip T. George, on 7/23/2007 1:00 PM, said the following: SSL/TLS is not going to solve the keylogger and malware problem. Basically, if you're on a public (or even a friend's) computer and someone decides to monitor keystrokes using some application, your password wi

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-23 Thread Charles Marcus
Phillip T. George, on 7/23/2007 1:00 PM, said the following: SSL/TLS is not going to solve the keylogger and malware problem. Basically, if you're on a public (or even a friend's) computer and someone decides to monitor keystrokes using some application, your password will be completely compro

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-23 Thread Phillip T. George
Charles Marcus wrote: On 7/23/2007, Frank Behrens ([EMAIL PROTECTED]) wrote: I want to discuss some problems/enhancements for dovecot in a webmail/otp setup. For access to an IMAP server like dovecot I see different client types: a) a "normal" MUA installed in a more or less trusted environmen

Re: [Dovecot] Ideas for Webmail/OTP

2007-07-23 Thread Charles Marcus
On 7/23/2007, Frank Behrens ([EMAIL PROTECTED]) wrote: I want to discuss some problems/enhancements for dovecot in a webmail/otp setup. For access to an IMAP server like dovecot I see different client types: a) a "normal" MUA installed in a more or less trusted environment b) remote access vi

[Dovecot] Ideas for Webmail/OTP

2007-07-23 Thread Frank Behrens
I want to discuss some problems/enhancements for dovecot in a webmail/otp setup. For access to an IMAP server like dovecot I see different client types: a) a "normal" MUA installed in a more or less trusted environment b) remote access via "webmail" from untrusted environments For a) I see with d