Re: What email encryption is actually in use?

2002-11-04 Thread David Howe
at Monday, November 04, 2002 2:28 AM, Tim May [EMAIL PROTECTED] was seen to say: Those who need to know, know. Which of course is a viable model, provided you are only using your key for private email to those who need to know if you are using it for signatures posted to a mailing list though, it

RE: What email encryption is actually in use?

2002-11-04 Thread Tyler Durden
and the Poor) From: Trei, Peter [EMAIL PROTECTED] To: [EMAIL PROTECTED], 'Major Variola (ret)' [EMAIL PROTECTED] Subject: RE: What email encryption is actually in use? Date: Mon, 4 Nov 2002 12:58:55 -0500 Major Variola (ret)[SMTP:[EMAIL PROTECTED]] At 10:13 AM 11/4/02 -0500, Tyler Durden wrote

RE: What email encryption is actually in use?

2002-11-04 Thread Trei, Peter
for their parent companies, ehr, for their parent countries). If a secure VPN tunnel forms between al-Jazeera's firewall and, say, some ISP near Atlantic Avenue in Brooklyn (heavy Arab community), then all sorts of spyglasses could pop up. The title of this thread is What email encryption

Re: What email encryption is actually in use?

2002-11-04 Thread telecon
On Sun, Nov 03, 2002 at 11:23:36AM -0800, Tim May wrote: - -- treat text as text, to be sent via whichever mail program one uses, or whichever chatroom software (not that encrypted chat rooms are likely...but who knows?), or whichever news reader software http://www.invisible.net is sort of

traffic analysis of VPN/secure tunnels (Re: What email encryption is actually in use?)

2002-11-04 Thread Adam Back
On Mon, Nov 04, 2002 at 12:58:55PM -0500, Trei, Peter wrote: Durden's question was whether a snooper on an IPSEC VPN can tell (for example) an encrypted email packet from an encrypted HTTP request. The answer is no. All Eve can tell is the FW1 sent FW2 a packet of a certain size. The

RE: What email encryption is actually in use?

2002-11-04 Thread Trei, Peter
Tim May[SMTP:[EMAIL PROTECTED]] On Saturday, November 2, 2002, at 08:01 PM, Tyler Durden wrote: Prior to that, the encrypted email I've sent in the past year or so has almost always failed, because of version incompatibilities, While in Telecom I was auditing optical transport

RE: What email encryption is actually in use?

2002-11-04 Thread Tyler Durden
knowledge of 3.) It may be possible for hardware that examines large numbers of communiques to pre-determine that much is of no interest. From: Trei, Peter [EMAIL PROTECTED] To: [EMAIL PROTECTED], 'Tim May' [EMAIL PROTECTED] Subject: RE: What email encryption is actually in use? Date: Mon, 4 Nov

Re: What email encryption is actually in use?

2002-11-04 Thread David Howe
at Monday, November 04, 2002 3:13 PM, Tyler Durden This is an interesting issue...how much information can be gleaned from encrypted payloads? Usually, the VPN is an encrypted tunnel from a specified IP (individual pc or lan) to another specified IP (the outer marker of the lan, usually the

RE: What email encryption is actually in use?

2002-11-04 Thread Trei, Peter
-- From: Tyler Durden[SMTP:[EMAIL PROTECTED]] Sent: Monday, November 04, 2002 10:13 AM To: [EMAIL PROTECTED] Subject: RE: What email encryption is actually in use? The ever-though-provoking Peter Trei wrote... A great deal of highly sensitive internal

RE: What email encryption is actually in use?

2002-11-04 Thread Trei, Peter
Tyler Durden[SMTP:[EMAIL PROTECTED]] writes: Most the ones I've seen are IPSEC over IPv4. You might be able to glean some info from packet size, timing, and ordering, but not much. IPSEC takes a plaintext IP packet and treats the whole thing as a data block to be encrypted. SO this

RE: What email encryption is actually in use?

2002-11-04 Thread Tyler Durden
... From: Trei, Peter [EMAIL PROTECTED] To: [EMAIL PROTECTED], 'Tyler Durden' [EMAIL PROTECTED] Subject: RE: What email encryption is actually in use? Date: Mon, 4 Nov 2002 11:00:56 -0500 -- From: Tyler Durden[SMTP:[EMAIL PROTECTED]] Sent: Monday, November 04, 2002 10:13 AM

RE: What email encryption is actually in use?

2002-11-04 Thread Major Variola (ret)
At 10:13 AM 11/4/02 -0500, Tyler Durden wrote: This is an interesting issue...how much information can be gleaned from encrypted payloads? Traffic analysis (who, how frequently, temporal patterns) Size of payload Is it possible for a switch or whatever that has visibility up to layers 4/5/6 to

RE: What email encryption is actually in use?

2002-11-04 Thread Trei, Peter
Major Variola (ret)[SMTP:[EMAIL PROTECTED]] At 10:13 AM 11/4/02 -0500, Tyler Durden wrote: This is an interesting issue...how much information can be gleaned from encrypted payloads? Traffic analysis (who, how frequently, temporal patterns) Size of payload Is it possible for a

Re: What email encryption is actually in use?

2002-11-04 Thread David W. Hodgins
-BEGIN PGP SIGNED MESSAGE- If you signed your messages on a regular basis, it would let me know whether or not you're the same Tim May, I've been reading since back when toad.com was the only server for the list. If you're key was signed by anyone I've dealt with, who I know will

Re: What email encryption is actually in use?

2002-11-04 Thread David Howe
at Monday, November 04, 2002 2:28 AM, Tim May [EMAIL PROTECTED] was seen to say: Those who need to know, know. Which of course is a viable model, provided you are only using your key for private email to those who need to know if you are using it for signatures posted to a mailing list though, it

Re: What email encryption is actually in use?

2002-11-04 Thread Shawn K. Quinn
On Saturday November 2 2002 11:09, Adam Shostack wrote: I'd be interested to hear how often email content is protected by any form of crypto, including IPsec, Starttls, ssh delivery, or PGP or SMIME. There's probably an interesting paper in going out and looking at this. I use GnuPG to the

RE: What email encryption is actually in use?

2002-11-04 Thread Trei, Peter
Tim May[SMTP:[EMAIL PROTECTED]] On Saturday, November 2, 2002, at 08:01 PM, Tyler Durden wrote: Prior to that, the encrypted email I've sent in the past year or so has almost always failed, because of version incompatibilities, While in Telecom I was auditing optical transport

Re: What email encryption is actually in use?

2002-11-04 Thread David Howe
at Monday, November 04, 2002 3:13 PM, Tyler Durden This is an interesting issue...how much information can be gleaned from encrypted payloads? Usually, the VPN is an encrypted tunnel from a specified IP (individual pc or lan) to another specified IP (the outer marker of the lan, usually the

RE: What email encryption is actually in use?

2002-11-04 Thread Major Variola (ret)
At 10:13 AM 11/4/02 -0500, Tyler Durden wrote: This is an interesting issue...how much information can be gleaned from encrypted payloads? Traffic analysis (who, how frequently, temporal patterns) Size of payload Is it possible for a switch or whatever that has visibility up to layers 4/5/6 to

RE: What email encryption is actually in use?

2002-11-04 Thread Tyler Durden
... From: Trei, Peter [EMAIL PROTECTED] To: [EMAIL PROTECTED], 'Tyler Durden' [EMAIL PROTECTED] Subject: RE: What email encryption is actually in use? Date: Mon, 4 Nov 2002 11:00:56 -0500 -- From: Tyler Durden[SMTP:[EMAIL PROTECTED]] Sent: Monday, November 04, 2002 10:13 AM

RE: What email encryption is actually in use?

2002-11-04 Thread Trei, Peter
Tyler Durden[SMTP:[EMAIL PROTECTED]] writes: Most the ones I've seen are IPSEC over IPv4. You might be able to glean some info from packet size, timing, and ordering, but not much. IPSEC takes a plaintext IP packet and treats the whole thing as a data block to be encrypted. SO this

RE: What email encryption is actually in use?

2002-11-04 Thread Trei, Peter
for their parent companies, ehr, for their parent countries). If a secure VPN tunnel forms between al-Jazeera's firewall and, say, some ISP near Atlantic Avenue in Brooklyn (heavy Arab community), then all sorts of spyglasses could pop up. The title of this thread is What email encryption

Re: What email encryption is actually in use?

2002-11-04 Thread telecon
On Sun, Nov 03, 2002 at 11:23:36AM -0800, Tim May wrote: - -- treat text as text, to be sent via whichever mail program one uses, or whichever chatroom software (not that encrypted chat rooms are likely...but who knows?), or whichever news reader software http://www.invisible.net is sort of

traffic analysis of VPN/secure tunnels (Re: What email encryption is actually in use?)

2002-11-04 Thread Adam Back
On Mon, Nov 04, 2002 at 12:58:55PM -0500, Trei, Peter wrote: Durden's question was whether a snooper on an IPSEC VPN can tell (for example) an encrypted email packet from an encrypted HTTP request. The answer is no. All Eve can tell is the FW1 sent FW2 a packet of a certain size. The

Re: What email encryption is actually in use?

2002-11-03 Thread Major Variola (ret)
FWIW In the Si biz, its quite common to encrypt files. I've seen (albeit lame, and with guessable passwords) zip encryption and the classic crypt used. Between engineers, and between lawyers and engineers. Typically the encrypted info is an attachment to unencrypted email (often describing its

Re: What email encryption is actually in use?

2002-11-03 Thread Len Sassaman
On Sat, 2 Nov 2002, Tim May wrote: PK crypto has made a lot of things a lot easier, but expecting it all to work with a click of a button is naive. Of course, most of us don't actually have secrets which make protocols and efforts justifiable. There's the rub. I expect it to work with the

Re: What email encryption is actually in use?

2002-11-03 Thread Steve Furlong
On Sunday 03 November 2002 12:53, Len Sassaman wrote: On Sat, 2 Nov 2002, Tim May wrote: PK crypto has made a lot of things a lot easier, but expecting it all to work with a click of a button is naive. Of course, most of us don't actually have secrets which make protocols and efforts

Re: What email encryption is actually in use?

2002-11-03 Thread Tim May
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Sunday, November 3, 2002, at 09:53 AM, Len Sassaman wrote: What's naive is trying to ram such products down the public's collective throat. Cryptographic solutions are not of all or nothing strength. I don't know why UI hasn't been the

Re: What email encryption is actually in use?

2002-11-03 Thread Tim May
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Sunday, November 3, 2002, at 10:29 AM, Steve Furlong wrote: Agreed. Setup should be pretty simple, but daily use for the unwashed masses has to be one-click. And version compatibility problems have _got_ to disappear. Actually, PGP's Outlook

Re: What email encryption is actually in use?

2002-11-03 Thread Adam Shostack
On Sun, Nov 03, 2002 at 11:23:36AM -0800, Tim May wrote: | I think most users, even casual ones, would accept this advice: | | Look, encrypted text is just a rearrangement of text. Compose your | message in whatever editor or word processor you want, apply the | encryption directly to that

Re: What email encryption is actually in use?

2002-11-03 Thread Shawn K. Quinn
On Saturday November 2 2002 11:09, Adam Shostack wrote: I'd be interested to hear how often email content is protected by any form of crypto, including IPsec, Starttls, ssh delivery, or PGP or SMIME. There's probably an interesting paper in going out and looking at this. I use GnuPG to the

Re: What email encryption is actually in use?

2002-11-03 Thread Tim May
On Saturday, November 2, 2002, at 08:01 PM, Tyler Durden wrote: Prior to that, the encrypted email I've sent in the past year or so has almost always failed, because of version incompatibilities, While in Telecom I was auditing optical transport gear, and we adopted the practice of

Re: What email encryption is actually in use?

2002-11-03 Thread Len Sassaman
On Sat, 2 Nov 2002, Tim May wrote: PK crypto has made a lot of things a lot easier, but expecting it all to work with a click of a button is naive. Of course, most of us don't actually have secrets which make protocols and efforts justifiable. There's the rub. I expect it to work with the

Re: What email encryption is actually in use?

2002-11-03 Thread Steve Furlong
On Sunday 03 November 2002 12:53, Len Sassaman wrote: On Sat, 2 Nov 2002, Tim May wrote: PK crypto has made a lot of things a lot easier, but expecting it all to work with a click of a button is naive. Of course, most of us don't actually have secrets which make protocols and efforts

Re: What email encryption is actually in use?

2002-11-03 Thread Adam Shostack
On Sun, Nov 03, 2002 at 11:23:36AM -0800, Tim May wrote: | I think most users, even casual ones, would accept this advice: | | Look, encrypted text is just a rearrangement of text. Compose your | message in whatever editor or word processor you want, apply the | encryption directly to that

Re: What email encryption is actually in use?

2002-11-03 Thread Major Variola (ret)
FWIW In the Si biz, its quite common to encrypt files. I've seen (albeit lame, and with guessable passwords) zip encryption and the classic crypt used. Between engineers, and between lawyers and engineers. Typically the encrypted info is an attachment to unencrypted email (often describing its

Re: What email encryption is actually in use?

2002-11-03 Thread Tim May
On Sunday, November 3, 2002, at 06:14 PM, David W. Hodgins wrote: -BEGIN PGP SIGNED MESSAGE- The advantages really disappear, when the key used to sign the message isn't sent to the key servers {:. Those who need to know, know. You, I've never seen before. Even if you found my key

Re: What email encryption is actually in use?

2002-11-02 Thread James A. Donald
-- James A. Donald: I intended to sign this using Network Associates command line pgp, [6.5.8]only to discover that pgp -sa file produced unintellible gibberish, that could only be made sense of by pgp, so that no one would be able to read it without first checking my signature.

Re: What email encryption is actually in use?

2002-11-02 Thread David Howe
at Monday, September 30, 2002 7:52 PM, James A. Donald [EMAIL PROTECTED] was seen to say: Is it practical for a particular group, for example a corporation or a conspiracy, to whip up its own damned root certificate, without buggering around with verisign? (Of course fixing Microsoft's

Re: What email encryption is actually in use?

2002-11-02 Thread Adam Shostack
An interesting tidbit in the September Information Security Bulletin is the claim from MessageLabs that only .005% of the mail they saw in 2002 is encrypted, up from .003% in 2000. (MessageLabs is an outsourcing email anti-virus company.) At this thrilling rate of growth, it will be on the order

Re: What email encryption is actually in use?

2002-11-02 Thread Steve Furlong
On Saturday 02 November 2002 12:09, Adam Shostack wrote: An interesting tidbit in the September Information Security Bulletin is the claim from MessageLabs that only .005% of the mail they saw in 2002 is encrypted, up from .003% in 2000. ... Last month, about 5% of my email was sent PGP

RE: What email encryption is actually in use?

2002-11-01 Thread Lucky Green
Peter wrote [about the benefits of STARTTLS]: As opposed to more conventional encryption, where you're protecting nothing at any point along the chain, because 99.99% of the user base can't/won't use it. In any case most email is point-to-point, which means you are protecting the entire

Re: What email encryption is actually in use?

2002-10-29 Thread David Howe
at Tuesday, October 01, 2002 3:08 AM, Peter Gutmann [EMAIL PROTECTED] was seen to say: For encryption, STARTTLS, which protects more mail than all other email encryption technology combined. See http://www.cs.auckland.ac.nz/~pgut001/pubs/usenix02_slides.pdf (towards the back). I would dispute

Re: why bother signing? (was Re: What email encryption is actually in use?)

2002-10-13 Thread Julian Assange
There have been episodes of spoofing on this list. If client side encryption just worked, and if what is considerably more difficult, checking the signatures just worked, there would be no bother, hence it would be rational to sign Not just work but opt out is what you are looking for. If

Re: why bother signing? (was Re: What email encryption is actually in use?)

2002-10-13 Thread Julian Assange
There have been episodes of spoofing on this list. If client side encryption just worked, and if what is considerably more difficult, checking the signatures just worked, there would be no bother, hence it would be rational to sign Not just work but opt out is what you are looking for. If

Re: why bother signing? (was Re: What email encryption is actually in use?)

2002-10-05 Thread Ben Laurie
Ben Laurie wrote: On Fri, Oct 04, 2002 at 01:07:50PM -0700, Major Variola (ret) wrote: At 04:45 PM 10/3/02 -0700, James A. Donald wrote: -- James A. Donald wrote: If we had client side encryption that just works we would be seeing a few more signed messages on this list, Ben Laurie

why bother signing? (was Re: What email encryption is actually in use?)

2002-10-04 Thread Major Variola (ret)
At 04:45 PM 10/3/02 -0700, James A. Donald wrote: -- James A. Donald wrote: If we had client side encryption that just works we would be seeing a few more signed messages on this list, Ben Laurie wrote: Why would I want to sign a message to this list? Then all the people who read this

Re: why bother signing? (was Re: What email encryption is actually in use?)

2002-10-04 Thread Ben Laurie
On Fri, Oct 04, 2002 at 01:07:50PM -0700, Major Variola (ret) wrote: At 04:45 PM 10/3/02 -0700, James A. Donald wrote: -- James A. Donald wrote: If we had client side encryption that just works we would be seeing a few more signed messages on this list, Ben Laurie wrote: Why

Re: why bother signing? (was Re: What email encryption is actually in use?)

2002-10-04 Thread James A. Donald
James A. Donald: If we had client side encryption that just works we would be seeing a few more signed messages on this list, Major Variola (ret): But Ben is not spoofed here! So there is little motivation. [...] In the absence of any need, its not rational to bother. There have

Re: What email encryption is actually in use?

2002-10-03 Thread Ben Laurie
Adam Shostack wrote: Whats wrong with PGP sigs is that going on 9 full years after I generated my first pgp key, my mom still can't use the stuff. Mozilla+enigmail+gpg. It just works. Cheers, Ben. -- http://www.apache-ssl.org/ben.html http://www.thebunker.net/ There is no limit to

Re: What email encryption is actually in use?

2002-10-03 Thread James A. Donald
-- James A. Donald wrote: If we had client side encryption that just works we would be seeing a few more signed messages on this list, and those that appear, would actually be checked. Send an unnecessarily encrypted message to Tim and he will probably threaten to shoot you. Ben

Re: What email encryption is actually in use?

2002-10-03 Thread James A. Donald
-- Adam Shostack wrote: Whats wrong with PGP sigs is that going on 9 full years after I generated my first pgp key, my mom still can't use the stuff. On 3 Oct 2002 at 17:33, Ben Laurie wrote: Mozilla+enigmail+gpg. It just works. If we had client side encryption that just works we

Re: What email encryption is actually in use?

2002-10-03 Thread Alfie
On Thu, Oct 03, 2002 at 11:15:02AM -0700, James A. Donald wrote: On 3 Oct 2002 at 17:33, Ben Laurie wrote: Mozilla+enigmail+gpg. It just works. If we had client side encryption that just works we would be seeing a few more signed messages on this list, and those that appear, would

Re: What email encryption is actually in use?

2002-10-03 Thread Ben Laurie
James A. Donald wrote: -- Adam Shostack wrote: Whats wrong with PGP sigs is that going on 9 full years after I generated my first pgp key, my mom still can't use the stuff. On 3 Oct 2002 at 17:33, Ben Laurie wrote: Mozilla+enigmail+gpg. It just works. If we had client side

Re: What email encryption is actually in use?

2002-10-03 Thread Ben Laurie
Adam Shostack wrote: Whats wrong with PGP sigs is that going on 9 full years after I generated my first pgp key, my mom still can't use the stuff. Mozilla+enigmail+gpg. It just works. Cheers, Ben. -- http://www.apache-ssl.org/ben.html http://www.thebunker.net/ There is no limit to

Re: What email encryption is actually in use?

2002-10-03 Thread James A. Donald
-- Adam Shostack wrote: Whats wrong with PGP sigs is that going on 9 full years after I generated my first pgp key, my mom still can't use the stuff. On 3 Oct 2002 at 17:33, Ben Laurie wrote: Mozilla+enigmail+gpg. It just works. If we had client side encryption that just works we

Re: What email encryption is actually in use?

2002-10-03 Thread Alfie
On Thu, Oct 03, 2002 at 11:15:02AM -0700, James A. Donald wrote: On 3 Oct 2002 at 17:33, Ben Laurie wrote: Mozilla+enigmail+gpg. It just works. If we had client side encryption that just works we would be seeing a few more signed messages on this list, and those that appear, would

Re: What email encryption is actually in use?

2002-10-03 Thread Ben Laurie
James A. Donald wrote: -- Adam Shostack wrote: Whats wrong with PGP sigs is that going on 9 full years after I generated my first pgp key, my mom still can't use the stuff. On 3 Oct 2002 at 17:33, Ben Laurie wrote: Mozilla+enigmail+gpg. It just works. If we had client side

Re: What email encryption is actually in use?

2002-10-03 Thread James A. Donald
-- James A. Donald wrote: If we had client side encryption that just works we would be seeing a few more signed messages on this list, and those that appear, would actually be checked. Send an unnecessarily encrypted message to Tim and he will probably threaten to shoot you. Ben

Re: What email encryption is actually in use?

2002-10-02 Thread David Howe
-BEGIN PGP SIGNED MESSAGE- at Tuesday, October 01, 2002 9:04 PM, Petro [EMAIL PROTECTED] was seen to say: Well, it's a start. Every mail server (except mx1 and mx2.prserv.net) should use TLS. Its nice in theory, but in practice look how long it takes the bulk of the internet to

Re: What email encryption is actually in use?

2002-10-02 Thread Jeremey Barrett
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Bill Stewart wrote: | | If your organization is an ISP, the risks are letting them | handle your email at all (especially with currently proposed | mandatory eavesdropping laws), and STARTTLS provides a | mechanism for direct delivery that isn't as

Re: What email encryption is actually in use?

2002-10-02 Thread Jeremey Barrett
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Udhay Shankar N wrote: | At 10:04 AM 10/2/02 -0500, Jeremey Barrett wrote: | | Amusingly, virtually none of them support STARTLS on any other protocol. | :) IMAP and POP are almost all supported only on dedicated SSL ports | (IMAPS, POP3S). Argh. | |

Re: What email encryption is actually in use?

2002-10-02 Thread Paul Krumviede
--On Wednesday, 02 October, 2002 10:54 -0500 Jeremey Barrett [EMAIL PROTECTED] wrote: Udhay Shankar N wrote: | At 10:04 AM 10/2/02 -0500, Jeremey Barrett wrote: | | Amusingly, virtually none of them support STARTLS on any other protocol. | :) IMAP and POP are almost all supported only on

Re: What email encryption is actually in use?

2002-10-02 Thread Ben Laurie
Lucky Green wrote: I also agree that current MTAs' implementations of STARTTLS are only a first step. At least in postfix, the only MTA with which I am sufficiently familiar to form an opinion, it appears impossible to require that certs presented by trusted parties match a particular hash

Re: What email encryption is actually in use?

2002-10-02 Thread James A. Donald
-- Once you start using it, it becomes part of hte pattern by wich other people identify you. On 2 Oct 2002 at 9:52, David Howe wrote: Exactly the intention, yes :) Just for the sake of it (anyone who cares will have seen my signature enough times by now) I will sign this

Re: What email encryption is actually in use?

2002-10-02 Thread Adam Shostack
On Wed, Oct 02, 2002 at 04:54:54PM +0100, Ben Laurie wrote: | Lucky Green wrote: | I also agree that current MTAs' implementations of STARTTLS are only a | first step. At least in postfix, the only MTA with which I am | sufficiently familiar to form an opinion, it appears impossible to | require

Re: What email encryption is actually in use?

2002-10-02 Thread Dave Howe
James A. Donald wrote: And PGP tells me signature not checked, key does not meet validity threshold what version are you on? ckt never does that - it checks it, and marks the sig status as good or bad - but obviously marks the key status as invalid (due to lack of signing) on anyone I don't

Re: What email encryption is actually in use?

2002-10-02 Thread Ben Laurie
Adam Shostack wrote: On Wed, Oct 02, 2002 at 04:54:54PM +0100, Ben Laurie wrote: | Lucky Green wrote: | I also agree that current MTAs' implementations of STARTTLS are only a | first step. At least in postfix, the only MTA with which I am | sufficiently familiar to form an opinion, it

Re: What email encryption is actually in use?

2002-10-02 Thread Adam Shostack
On Wed, Oct 02, 2002 at 09:12:47PM +0100, Ben Laurie wrote: | Adam Shostack wrote: | On Wed, Oct 02, 2002 at 04:54:54PM +0100, Ben Laurie wrote: | | Lucky Green wrote: | | I also agree that current MTAs' implementations of STARTTLS are only a | | first step. At least in postfix, the only MTA with

RE: What email encryption is actually in use?

2002-10-02 Thread Lucky Green
Ben wrote: Lucky Green wrote: I also agree that current MTAs' implementations of STARTTLS are only a first step. At least in postfix, the only MTA with which I am sufficiently familiar to form an opinion, it appears impossible to require that certs presented by trusted parties match

Re: What email encryption is actually in use?

2002-10-02 Thread Peter Gutmann
David Howe [EMAIL PROTECTED] writes: at Wednesday, October 02, 2002 3:13 AM, Peter Gutmann [EMAIL PROTECTED] was seen to say: As opposed to more conventional encryption, where you're protecting nothing at any point along the chain, because 99.99% of the user base can't/won't use it. That is a

Re: What email encryption is actually in use?

2002-10-02 Thread Bill Stewart
At 09:05 AM 10/01/2002 -0700, Major Variola (ret) wrote: So yes Alice at ABC.COM sends mail to Bob at XYZ.COM and the SMTP link is encrypted, so the bored upstream-ISP netops can't learn anything besides traffic analysis. But once inside XYZ.COM, many unauthorized folks could intercept Bob's

Re: What email encryption is actually in use?

2002-10-02 Thread David Howe
at Tuesday, October 01, 2002 6:10 PM, James A. Donald [EMAIL PROTECTED] was seen to say: Not so. It turns out the command line is now different in PGP 6.5.8. It is now pgp -sta to clearsign, instead of pgp -sa. (Needless to say the t option does not appear in pgp -h *nods* its in the 6.5

Re: What email encryption is actually in use?

2002-10-02 Thread David Howe
-BEGIN PGP SIGNED MESSAGE- at Tuesday, October 01, 2002 9:04 PM, Petro [EMAIL PROTECTED] was seen to say: Well, it's a start. Every mail server (except mx1 and mx2.prserv.net) should use TLS. Its nice in theory, but in practice look how long it takes the bulk of the internet to

Re: What email encryption is actually in use?

2002-10-02 Thread David Howe
-BEGIN PGP SIGNED MESSAGE- at Tuesday, October 01, 2002 9:04 PM, Petro [EMAIL PROTECTED] was seen to say: Well, it's a start. Every mail server (except mx1 and mx2.prserv.net) should use TLS. Its nice in theory, but in practice look how long it takes the bulk of the internet to

RE: What email encryption is actually in use?

2002-10-02 Thread Vin McLellan
I've always been intrigued by the volume of reports which indicate that when hackers or other outlaws raid a corporate site, the first thing they do is scan the stored email files of company executives. Funny, with all the attention focused pushing the user to encrypt email for transmission,

Re: What email encryption is actually in use?

2002-10-02 Thread David Howe
at Wednesday, October 02, 2002 3:13 AM, Peter Gutmann [EMAIL PROTECTED] was seen to say: As opposed to more conventional encryption, where you're protecting nothing at any point along the chain, because 99.99% of the user base can't/won't use it. That is a different problem. if you assume that

Re: What email encryption is actually in use?

2002-10-02 Thread Ben Laurie
Lucky Green wrote: I also agree that current MTAs' implementations of STARTTLS are only a first step. At least in postfix, the only MTA with which I am sufficiently familiar to form an opinion, it appears impossible to require that certs presented by trusted parties match a particular hash

Re: What email encryption is actually in use?

2002-10-02 Thread James A. Donald
-- Once you start using it, it becomes part of hte pattern by wich other people identify you. On 2 Oct 2002 at 9:52, David Howe wrote: Exactly the intention, yes :) Just for the sake of it (anyone who cares will have seen my signature enough times by now) I will sign this

Re: What email encryption is actually in use?

2002-10-02 Thread Adam Shostack
On Wed, Oct 02, 2002 at 09:12:47PM +0100, Ben Laurie wrote: | Adam Shostack wrote: | On Wed, Oct 02, 2002 at 04:54:54PM +0100, Ben Laurie wrote: | | Lucky Green wrote: | | I also agree that current MTAs' implementations of STARTTLS are only a | | first step. At least in postfix, the only MTA with

Re: What email encryption is actually in use?

2002-10-02 Thread Ben Laurie
Adam Shostack wrote: On Wed, Oct 02, 2002 at 04:54:54PM +0100, Ben Laurie wrote: | Lucky Green wrote: | I also agree that current MTAs' implementations of STARTTLS are only a | first step. At least in postfix, the only MTA with which I am | sufficiently familiar to form an opinion, it

Re: What email encryption is actually in use?

2002-10-02 Thread Adam Shostack
On Wed, Oct 02, 2002 at 04:54:54PM +0100, Ben Laurie wrote: | Lucky Green wrote: | I also agree that current MTAs' implementations of STARTTLS are only a | first step. At least in postfix, the only MTA with which I am | sufficiently familiar to form an opinion, it appears impossible to | require

Re: What email encryption is actually in use?

2002-10-02 Thread James A. Donald
-- James A. Donald wrote: And PGP tells me signature not checked, key does not meet validity threshold On 2 Oct 2002 at 20:40, Dave Howe wrote: what version are you on? pgp 6.5.8 command line version. The actual problem was that there was no such key in my key ring, but error

Re: What email encryption is actually in use?

2002-10-02 Thread James A. Donald
-- On 2 Oct 2002 at 16:19, Adam Shostack wrote: Whats wrong with PGP sigs is that going on 9 full years after I generated my first pgp key, my mom still can't use the stuff. The fact that your mum cannot use the stuff is only half the problem. I am a computer expert, a key

Re: What email encryption is actually in use?

2002-10-02 Thread Len Sassaman
On Wed, 2 Oct 2002, Ben Laurie wrote: Adam Shostack wrote: On Wed, Oct 02, 2002 at 04:54:54PM +0100, Ben Laurie wrote: | Lucky Green wrote: | I also agree that current MTAs' implementations of STARTTLS are only a | first step. At least in postfix, the only MTA with which I am |

Re: What email encryption is actually in use?

2002-10-02 Thread Bill Stewart
At 09:05 AM 10/01/2002 -0700, Major Variola (ret) wrote: So yes Alice at ABC.COM sends mail to Bob at XYZ.COM and the SMTP link is encrypted, so the bored upstream-ISP netops can't learn anything besides traffic analysis. But once inside XYZ.COM, many unauthorized folks could intercept Bob's

Re: What email encryption is actually in use?

2002-10-02 Thread Jeremey Barrett
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Bill Stewart wrote: | | If your organization is an ISP, the risks are letting them | handle your email at all (especially with currently proposed | mandatory eavesdropping laws), and STARTTLS provides a | mechanism for direct delivery that isn't as

Re: What email encryption is actually in use?

2002-10-02 Thread Jeremey Barrett
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Udhay Shankar N wrote: | At 10:04 AM 10/2/02 -0500, Jeremey Barrett wrote: | | Amusingly, virtually none of them support STARTLS on any other protocol. | :) IMAP and POP are almost all supported only on dedicated SSL ports | (IMAPS, POP3S). Argh. | |

Re: What email encryption is actually in use?

2002-10-01 Thread Petro
On Tue, Oct 01, 2002 at 01:20:28PM +0100, David Howe wrote: at Tuesday, October 01, 2002 3:08 AM, Peter Gutmann [EMAIL PROTECTED] was seen to say: For encryption, STARTTLS, which protects more mail than all other email encryption technology combined. See

RE: What email encryption is actually in use?

2002-10-01 Thread Wall, Kevin
Morlock Elloi wrote... deleted In other words, those that need crypto are taken care of, and in order to gain resources to make sheeple use crypto you have to become Them, in which case you don't really want sheeple to use crypto in the first place. Please do not use the derogatory term

Re: What email encryption is actually in use?

2002-10-01 Thread Major Variola (ret)
The problem Mr. Howe describes is fundamental, folks: encryption should be end-to-end even when the endpoints are functionaries in a company. Because not all employees are equal. So yes Alice at ABC.COM sends mail to Bob at XYZ.COM and the SMTP link is encrypted, so the bored upstream-ISP

Re: What email encryption is actually in use?

2002-10-01 Thread Peter Gutmann
James A. Donald [EMAIL PROTECTED] writes: To the extent that real people are using digitally signed and or encrypted messages for real purposes, what is the dominant technology, or is use so sporadic that no network effect is functioning, so nothing can be said to be dominant? For encryption,

Re: What email encryption is actually in use?

2002-10-01 Thread David Howe
at Monday, September 30, 2002 7:52 PM, James A. Donald [EMAIL PROTECTED] was seen to say: Is it practical for a particular group, for example a corporation or a conspiracy, to whip up its own damned root certificate, without buggering around with verisign? (Of course fixing Microsoft's

Re: What email encryption is actually in use?

2002-10-01 Thread David Howe
at Tuesday, October 01, 2002 3:08 AM, Peter Gutmann [EMAIL PROTECTED] was seen to say: For encryption, STARTTLS, which protects more mail than all other email encryption technology combined. See http://www.cs.auckland.ac.nz/~pgut001/pubs/usenix02_slides.pdf (towards the back). I would

Re: What email encryption is actually in use?

2002-10-01 Thread James A. Donald
-- James A. Donald: I intended to sign this using Network Associates command line pgp, [6.5.8]only to discover that pgp -sa file produced unintellible gibberish, that could only be made sense of by pgp, so that no one would be able to read it without first checking my signature.

Re: What email encryption is actually in use?

2002-10-01 Thread Major Variola (ret)
The problem Mr. Howe describes is fundamental, folks: encryption should be end-to-end even when the endpoints are functionaries in a company. Because not all employees are equal. So yes Alice at ABC.COM sends mail to Bob at XYZ.COM and the SMTP link is encrypted, so the bored upstream-ISP

Re: What email encryption is actually in use?

2002-10-01 Thread Major Variola (ret)
At 11:52 AM 9/30/02 -0700, James A. Donald wrote: -- What email encryption is actually in use? PGP 5-7 on Win95+, using Eudora 3.05 talks to Mac whatever using 2.6.2 Signing is not generally necessary. The chief barrier to use of outlook's email encryption Outlook is one of Microsoft's

Re: What email encryption is actually in use?

2002-10-01 Thread James A. Donald
-- James A. Donald: I intended to sign this using Network Associates command line pgp, [6.5.8]only to discover that pgp -sa file produced unintellible gibberish, that could only be made sense of by pgp, so that no one would be able to read it without first checking my signature.

RE: What email encryption is actually in use?

2002-10-01 Thread Lucky Green
Peter wrote [about the benefits of STARTTLS]: As opposed to more conventional encryption, where you're protecting nothing at any point along the chain, because 99.99% of the user base can't/won't use it. In any case most email is point-to-point, which means you are protecting the entire

Re: What email encryption is actually in use?

2002-09-30 Thread Petro
On Mon, Sep 30, 2002 at 12:53:36PM -0700, Joseph Ashwood wrote: - Original Message - From: James A. Donald [EMAIL PROTECTED] The chief barrier to use of outlook's email encryption, aside from the fact that is broken, is the intolerable cost and inconvenience of certificate

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