Re: Certificate-stealing Trojan

2010-09-29 Thread Thierry Moreau
Marsh Ray wrote: On 09/27/2010 08:26 PM, Rose, Greg wrote: On 2010 Sep 24, at 12:47 , Steven Bellovin wrote: Per http://news.softpedia.com/news/New-Trojan-Steals-Digital-Certificates-157442.shtml there's a new Trojan out there that looks for a steals Cert_*.p12 files -- certificates with

Re: Obama administration revives Draconian communications intercept plans

2010-09-29 Thread Josh Rubin
On 9/28/2010 1:47 AM, Florian Weimer wrote: Essentially, officials want Congress to require all services that enable communications — including encrypted e-mail transmitters like BlackBerry, social networking Web sites like Facebook and software that allows direct “peer to peer”

Re: ciphers with keys modifying control flow?

2010-09-29 Thread Jerry Leichter
On Sep 22, 2010, at 9:34 AM, Steven Bellovin wrote: Does anyone know of any ciphers where bits of keys modify the control path, rather than just data operations? Yes, I know that that's a slippery concept, since ultimately things like addition and multiplication can be implemented with

Re: ciphers with keys modifying control flow?

2010-09-29 Thread Florian Weimer
* Steven Bellovin: Does anyone know of any ciphers where bits of keys modify the control path, rather than just data operations? AES. See François Koeune, Jean-Jacques Quisqater, A timing attack aganst Rijndael. Université catholique de Louvain, Technicl Report CG-1999.

Re: Haystack (helping dissidents?)

2010-09-29 Thread Bill Stewart
cryptography@metzdowd.com On Thu, Sep 16, 2010 at 04:49:19PM +, M.R. wrote: | I said (something like) this when Haystack first appeared on this | list... | | Words dissidents and oppressive regimes have no place in | serious discussions among cryptographers. Once we start assigning | ethical

Stanford 10/7/2010 -- Lessons from the Haystack Affair

2010-09-29 Thread Bill Stewart
Potentially interesting lecture if you're in the Bay Area From: alli...@stanford.edu Reply-To: alli...@stanford.edu Subject: Liberation Technology 10/7/2010 -- Lessons from the Haystack Affair Date: Mon, 27 Sep 2010 13:40:55 -0700 (PDT) STANFORD FREEMAN SPOGLI INSTITUTE FOR INTERNATIONAL

Re: 'Padding Oracle' Crypto Attack Affects Millions of ASP.NET Apps

2010-09-29 Thread James A. Donald
On 2010-09-28 1:58 PM, Thai Duong wrote: On Sat, Sep 18, 2010 at 8:43 PM, Peter Gutmann pgut...@cs.auckland.ac.nz wrote: I'm one of the authors of the attack. Actually if you look closer, you'll see that they do it wrong in many ways. The FormsAuth as well, not just the view state?

Re: 'Padding Oracle' Crypto Attack Affects Millions of ASP.NET Apps

2010-09-29 Thread Kevin W. Wall
Thai Duong wrote: On Tue, Sep 28, 2010 at 12:49 PM, Peter Gutmann pgut...@cs.auckland.ac.nz wrote: Ye gods, how can you screw something that simple up that much? They use the appropriate, and secure, HMAC-SHA1 and AES, but manage to apply it backwards! I guess they just follow SSL.

Re: Obama administration wants encryption backdoors for domestic surveillance

2010-09-29 Thread dan
as usual, there's an XKCD for that http://xkcd.com/504/ --dan - The Cryptography Mailing List Unsubscribe by sending unsubscribe cryptography to majord...@metzdowd.com

Re: Obama administration revives Draconian communications intercept plans

2010-09-29 Thread Ken Buchanan
On Tue, Sep 28, 2010 at 1:47 AM, Florian Weimer f...@deneb.enyo.de wrote: Isn't this just a clarification of existing CALEA practice? In most jurisdictions, if a communications services provider is served an order to make available communications, it is required by law to provide it in the

2048 bits, damn the electrons! [...@openssl.org: [openssl.org #2354] [PATCH] Increase Default RSA Key Size to 2048-bits]

2010-09-29 Thread Thor Lancelot Simon
See below, which includes a handy pointer to the Microsoft and Mozilla policy statements requiring CAs to cease signing anything shorter than 2048 bits. As I think I said last week -- was it last week? -- it's my belief that cutting everything on the Web over to 2048 bits rather than, say, 1280