Entries Tagged "UK"

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Brexit Deal Mandates Old Insecure Crypto Algorithms

In what is surely an unthinking cut-and-paste issue, page 921 of the Brexit deal mandates the use of SHA-1 and 1024-bit RSA:

The open standard s/MIME as extension to de facto e-mail standard SMTP will be deployed to encrypt messages containing DNA profile information. The protocol s/MIME (V3) allows signed receipts, security labels, and secure mailing lists… The underlying certificate used by s/MIME mechanism has to be in compliance with X.509 standard…. The processing rules for s/MIME encryption operations… are as follows:

  1. the sequence of the operations is: first encryption and then signing,
  2. the encryption algorithm AES (Advanced Encryption Standard) with 256 bit key length and RSA with 1,024 bit key length shall be applied for symmetric and asymmetric encryption respectively,
  3. the hash algorithm SHA-1 shall be applied.
  4. s/MIME functionality is built into the vast majority of modern e-mail software packages including Outlook, Mozilla Mail as well as Netscape Communicator 4.x and inter-operates among all major e-mail software packages.

And s/MIME? Bleah.

Posted on December 31, 2020 at 6:19 AMView Comments

Drone Denial-of-Service Attack against Gatwick Airport

Someone is flying a drone over Gatwick Airport in order to disrupt service:

Chris Woodroofe, Gatwick’s chief operating officer, said on Thursday afternoon there had been another drone sighting which meant it was impossible to say when the airport would reopen.

He told BBC News: “There are 110,000 passengers due to fly today, and the vast majority of those will see cancellations and disruption. We have had within the last hour another drone sighting so at this stage we are not open and I cannot tell you what time we will open.

“It was on the airport, seen by the police and corroborated. So having seen that drone that close to the runway it was unsafe to reopen.”

The economics of this kind of thing isn’t in our favor. A drone is cheap. Closing an airport for a day is very expensive.

I don’t think we’re going to solve this by jammers, or GPS-enabled drones that won’t fly over restricted areas. I’ve seen some technologies that will safely disable drones in flight, but I’m not optimistic about those in the near term. The best defense is probably punitive penalties for anyone doing something like this — enough to discourage others.

There are a lot of similar security situations, in which the cost to attack is vastly cheaper than 1) the damage caused by the attack, and 2) the cost to defend. I have long believed that this sort of thing represents an existential threat to our society.

EDITED TO ADD (12/23): The airport has deployed some anti-drone technology and reopened.

EDITED TO ADD (1/2): Maybe there was never a drone.

Posted on December 21, 2018 at 6:24 AMView Comments

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Sidebar photo of Bruce Schneier by Joe MacInnis.