Re: [Cryptography] Traffic Analysis (was Re: PRISM PROOF Email)

2013-08-26 Thread Wendy M. Grossman
On 08/27/2013 01:17, Perry E. Metzger wrote: > On Mon, 26 Aug 2013 17:39:16 -0400 The Doctor > wrote: >> On 08/26/2013 09:26 AM, Perry E. Metzger wrote: >> >>> Mix networks are, however, a well technique. Onion networks, which >>> are related, are widely deployed right now in the form of Tor, and

Re: [Cryptography] Traffic Analysis (was Re: PRISM PROOF Email)

2013-08-26 Thread Perry E. Metzger
On Mon, 26 Aug 2013 17:39:16 -0400 The Doctor wrote: > On 08/26/2013 09:26 AM, Perry E. Metzger wrote: > > > Mix networks are, however, a well technique. Onion networks, which > > are related, are widely deployed right now in the form of Tor, and > > work well. I see little reason to believe mix

Re: [Cryptography] Traffic Analysis (was Re: PRISM PROOF Email)

2013-08-26 Thread The Doctor
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 08/26/2013 09:26 AM, Perry E. Metzger wrote: > Mix networks are, however, a well technique. Onion networks, which > are related, are widely deployed right now in the form of Tor, and > work well. I see little reason to believe mix networks would no

Re: [Cryptography] Traffic Analysis (was Re: PRISM PROOF Email)

2013-08-26 Thread Perry E. Metzger
On Sun, 25 Aug 2013 23:40:35 -0400 Phillip Hallam-Baker wrote: > There has to be a layered approach. > > Traffic analysis is probably going to demand steganography and that > is almost by definition outside standards work. I'm unaware of anyone who has seriously proposed steganography for that p

Re: [Cryptography] Traffic Analysis (was Re: PRISM PROOF Email)

2013-08-25 Thread Phillip Hallam-Baker
There has to be a layered approach. Traffic analysis is probably going to demand steganography and that is almost by definition outside standards work. The part of Prism that I consider to be blatantly unconstitutional is that they keep all the emails so that they can search them years later sho

[Cryptography] Traffic Analysis (was Re: PRISM PROOF Email)

2013-08-25 Thread Perry E. Metzger
On Fri, 23 Aug 2013 09:38:21 -0700 Carl Ellison wrote: > Meanwhile PRISM was more about metadata than content, right? How > are we going to prevent traffic analysis worldwide? The best technology for that is mix networks. At one point, early in the cypherpunks era, mix networks were something of