| I think you meant ECB mode?
|
| No, I meant CBC -- there's a birthday paradox attack to watch out for.
|
| Yep. In fact, there's a birthday paradox problem for all the standard
| chaining modes at around 2^{n/2}.
|
| For CBC and CFB, this ends up leaking information about the XOR of
| No, I meant CBC -- there's a birthday paradox attack to watch out for.
|
|
| Yep. In fact, there's a birthday paradox problem for all the standard
| chaining modes at around 2^{n/2}.
| For CBC and CFB, this ends up leaking information about the XOR of a couple
| plaintext blocks
Actually it's not that bad: using SIP, the RTP packets can be protected by
SRTP (RFC3711, with an opensource implementation from Cisco at
http://srtp.sourceforge.net/ )
SRTP...heh. Take a look at RFC3711 for a second.
Specification of a key management protocol for SRTP is out of scope
here.
http://www.fcw.com/print.asp
Federal Computer Week
Monday, February 7, 2005
NIST moves to stronger hashing
BY Florence Olsen
Published on Feb. 7, 2005
Federal agencies have been put on notice that National Institute of
Standards and Technology officials plan to phase out a widely
Are there any commercial link-layer encryptors for Ethernet available?
I know that Xerox used to make them, way back when, but are there any
current ones, able to deal with current speeds (and connectors)?
--Prof. Steven M. Bellovin, http://www.cs.columbia.edu/~smb
http://news.zdnet.com/2102-1009_22-5564288.html?tag=printthis
Quantum crypto firm charts way to mainstream
By Michael Kanellos
URL: http://news.zdnet.com/2100-1009_22-5564288.html
Magiq Technologies is creating a new line of products this year that it
says could help make quantum
http://www.techworld.com/storage/news/index.cfm?NewsID=3081Page=1pagePos=11
Techworld.com
07 February 2005
More experts warn of CAS arrays risks
MD5 comes in for further criticism
By Lucas Mearian, Computerworld (US)
More security experts are warning against the use of the flawed hashing
http://www.geocities.com/khlim777_my/b777cockpit4r.jpg
--dan
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e'd like to remind those of you planning to attend this year's event that
CodeCon is fast approaching.
CodeCon is the premier event in 2005 for application developer community.
It is a workshop for developers of real-world applications with working
code and active development projects.
Past
Once again, the RSA Conference is upon us, and many of the
corrospondents on these lists will be in San Francisco. I'd like to
see if anyone is interested in getting together. We've done this
before.
At past conferences, we've had various levels of participation,
from 50 down to 3. Since the
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To: [EMAIL PROTECTED] [EMAIL PROTECTED]
Subject: [fc-announce] Transportation, Taxes, and Conference Events
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Date: Mon, 07 Feb 2005 15:12:11 -0500
http://www.google.com/search?q=ethernet+link+encryptor
says that there are. There's even a widget that supposedly runs up to
gigabit. http://www.atmedia.de/english/news.html
I'm enough of a freenix zealot though that I'd build one out of a
couple of opteron boxen with gig ether cards and run
On 4 Feb 2005, at 10:51 AM, Greg Rose wrote:
I'm surprised that no-one has said that ECB mode is unsafe at any
speed.
Because if they did, some smartass would chime in and say that ECB mode
is perfectly fine at some speeds.
For example, you could safely encrypt one bit in ECB mode,
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