Terence Eden. He has a beard and is smiling.

Terence Eden’s Blog

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Two-Factor Authentication and the Police State

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In Britain - and many other countries - the police can legally force you to divulge your passwords. Whether it's to an encrypted file, a social network, or your email account, the state can legally rifle through your most intimate thoughts and (potentially) pose as you online. As we've recently seen, this can be done under the threat of prison - even if you've not been charged with any crime: …

Strawberries and Teabags

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David Cameron wants to block certain "pornographic" search terms. He joins a long list of MPs who simply don't understand what they're talking about - like Claire Perry, Andy Burnham, and Helen Goodman. I've talked before about my time working as an "Adult Material Classifier" for Vodafone UK. In short, my team and I used to watch pornographic videos and classify whether they were suitable for…

Cryptography and the Coventry Problem

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Photo of an Enigma machine at Bletchley Park.

There's an ethical conundrum which is often posed to military strategists and philosophers alike. In 1940, the Nazi's communications encryption had been broken by the British. Military Intelligence were able to decrypt a signal which indicated that the city of Coventry was to be bombed. The military chiefs took this information to the Prime Minister, Winston Churchill. If he ordered the…

Operation Weeting: Voicemail Interception Confusion

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Old Nokia phone showing an area code.

I don't usually get involved in legal blogging. I am not a lawyer, and I find the finicky details somewhat hard to follow. That said, I do appreciate how (most) judges in the UK write their judgements in a relatively clear and unambiguous manner. Jack of Kent today pointed out the recent judgement on Operation Weeting - which is looking into the alleged illegal interception of voicemail…

Prism and Plausible Deniability

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The leaders of several huge corporations have issued statements saying that their companies do not allow the US Government to illegally spy on their users. I'm sure they believe that. I'd even go so far as to say that I'm sure the entire board and top management genuinely have no knowledge of any malfeasance. Why would they? We're talking about spies - experts in the art of subterfuge and…

Why Can't I Pay Tax Only On My Profits?

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King of Google Eric Schmidt has written in The Guardian about how unfair it is that people don't think Google pay a fair share of taxes. He makes three pretty good points. Companies only pay tax on their profits. Politicians shouldn't make laws with loopholes. International laws need harmonisation. I agree with his second two points - although no-one is forcing Google to exploit …

OpenTech 2013

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Photo of me at OpenTech conference standing in front of a presentation about bribing MPs.

Another year - another OpenTech! See blog posts from 2010 and 2011. It feels like every year the event gets bigger and better. It's still the same crowd of politically aware techies, and it still costs a ridiculously cheap fiver to come along, and the talks were of an abnormally high quality. Here are my thoughts from the day. Farmification Of Factories Fascinating talk from Lisa Ma about…

The Gun That Fits On A Floppy Disk

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A floppy disk with Ripley's file on it.

The 3D printed gun is now a reality. I don't have access to a 3D printer - but I've downloaded the plans out of morbid curiosity. While downloading the blueprints may not be illegal, any UK citizen who made and owned such a handgun could face arrest, according to the UK's Metropolitan Police. BBC News It may not the best weapon in the world - it has reliability and accuracy issues - and it may…

Why Aren't Terrorists Bombing Queues?

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In 2010 I wrote a blog post called "Why Aren't Terrorists Bombing the Queues?" - but I chickened out of publishing it. Bombing a plane is hard, you have to buy a ticket, get past airport security, detonate it at just the right time, etc. By comparison, anyone can walk into a busy airport - say during the school holidays - wait for the shear number of people to build up, and then... But it…

Surrey Police and the Case of The Misleading Pie Charts

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Surrey County Council have sent every household in the county a booklet explaining how our council tax is being spent. Within it is a highly political comment from Kevin Hurley, the newly elected Police and Crime Commissioner. He presents a pie chart showing how the police force spend its money. Take a look at it and ask yourself this question: what percentage is spent on "Employees". …

Solar Update

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Another in my occasional series of blog posts about our solar panels. We used both the Energy Saving Trust Solar Power calculator and the Europa Solar Calculator to estimate a generation capacity of between 2,500 and 2,700 kWh per year. We've just done a reading for 21 November to 21 February. Right in line with expectations, we generated 205kWh - netting us ~£96 from the Feed In Tariff. …

The Levellers, The Diggers, The Hackers, and The Builders

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Illustration of English Rebel Songs. Peasants rising up.

My schooling of English history covered the 1066 invasion, then jumped to the Tudors, a smattering of the industrial revolution, a bit of the First World War, then a heavy focus on the Second World War whereupon, it seemed, history stopped. As far as I can recall, we learned nothing about the English Dissenters - the radical sects which flourished after the English Civil War. Then As I've…