Showing posts with label encryption. Show all posts
Showing posts with label encryption. Show all posts

2015/01/19

Why the UK needs more ways to wiretap .... NOT

David Cameron has recently come out with the UK needs new laws to curb evil terrorists and as part of this process banning end-to-end security in messaging applications and putting back holes into encryption protocols so GCHQ and the Security Services can do more snooping than they already do.

Edward Snowdon has already shown how much the NSA and GCHQ already have been complicit in installing back doors in routers and other devices and they have talked with security companies to put back doors in existing systems.

They even built a (mini) GSM network so they could tap what various people were doing when they came to the UK (that pretended to be the normal networks, but intercepted all voice, text and data traffic, put it through their network first and then sent it on to the normal networks). That caused a bit of a row and the Germans didn't much like it (so much so they promptly made everyone in Government use Blackberry's which do support encryption and secure traffic).

The Government already has powers of intercept. It can force anybody that has infrastructure in the UK or operates in the UK to hand over data records (RIPA has been around for a while).

Cable and Wireless (now Vodafone) used to be a big player in International data pipes and a lot of their undersea cables land in a small bay in Bude, Cornwall. There's a little C&W building above the beach where the cables terminate and then shoot out to the rest of the UK. Oddly there's a GCHQ listening station right next door (allegedly GCHQ don't even have to tap the fibres, C&W just give them a direct split) and the listening station is just a big data centre that can hold 30 days worth of data and it's a big FIFO (first in first out). The bods at GCHQ can look at the connections (which is generally who was talking to who, whether that's a person talking to another person or a person to a particular website) and then drill into the actual connection data when it's interesting to them.

The US have a big 'listening' station at Menwith Hill (in the UK).

Unfortunately giving the Government more power to do interception and weaken encryption isn't going to help anyone. Encryption technologies tend to be the same whatever the application. So the same encryption that may protect a messenger protocol is also the same protocol used to protect the web protocol (i.e. https rather than http). By reducing the encryption (or worse putting back doors in) it's not just the messenger protocols that suffer, it's also the services that should be secure that are affected too.

The other main problem is that it doesn't really affect the terrorists that the Government want to stop. They are going to CONTINUE using encryption whether the Government wants them too or not. The UK can't mandate non-encrypted (or reduced encryption) outside the UK, so everyone who wants security moves their services to a place that does allow it.

Disallowing or reducing the effectiveness of encryption is not the answer to terrorism.

2013/12/03

Maybe Blackberry will get a reprive

Blackberry moving into the consumer space was a bad idea on many accounts and rushing out BB10 with many features that were standard with BBOS while adding bells and whistles was also maybe not so clever.

However, now with all the fuss about the US's NSA and UK's GCHQ snooping everybody, businesses and Governments may now seriously be thinking about returning to the venerable Blackberry platform as it's the only phone with an encrypted end-to-end email service.

The German Government has already ordered 40,000 secure Blackberry Z10 phones (who knows why they didn't go for Q10's - maybe a bargain basement sale?). This trend could continue as other governments must also be worried about email snooping.

Blackberry seem to be moving back away from the consumer market and concentrating on what they're good at, encrypted secure communication devices which can meet regulatory approval for organisations such as banks and governments, maybe they'll survive after all, but in smaller markets where people are prepared to pay for the secure services they need.

2013/04/12

Zigbee targets Internet of Things

The Zigbee Alliance has published its latest spec allowing huge numbers of Zigbee devices to directly connect which is seen necessary for future Internet of Things (IoT) applications.

Zigbee (the path a bee flies) is an IEEE standard (IEEE 802.15.4) and the new IP Direct Internet Connection addition adds support for network and security layers and an application framework that is scalable with IPv6 connected devices. The Zigbee Alliance state it is the first IPv6 open wireless mesh standard.

The main advantages of Zigbee against other systems is that it's very low power, automatically meshes new nodes and supports a wide range of standards such as 6LoWPAN, IPv6, PANA, RPL, TCP, TLS and UDP as well as supporting end-to-end encryption. It operates in the licence exempt 2.4GHz band as well as other bands in other regions.