Skip to main content

POST Corrupting the blockchain

xxx

"Since then, I’ve thought to myself that anyplace where there is the possibility of fraud and corruption – money laundering, investing in sharia-compliant products, moving funds offshore, giving to charities, paying taxes, managing government funds and more – could be assisted by DLT.  It could provide a fully transparent, tamperproof view of who paid what to whom. "

via Solving state corruption with technology - Chris Skinner's blog

But how? Suppose all of the bank accounts in the UK are on a shared ledger and anyone can look at that ledger to see all of the transactions. Oh dear. Something of a privacy problem - it’s none of my business if Chris has spent his money on… well… you get the point. So clearly a transparent ledger is not practical.

So we’d better encrypt it then. Now you can see that I paid Chris but not how much or what for. But that sounds like no-one’s business but ours, doesn’t it? In which case, he should be using anonymous digital cash like Z-cash or eMoney or Mondex. That’s better. Now no-one can see that Chris and are paying each other. Now I can get on and bribe him to award me a contract. Oh wait, I thought we were against that? My head hurts.

Comments

Popular posts from this blog

There is no excuse for not taking cards

So we went to the pub. For lunch. Seven of us. Say £20 per head. £100+ quid. Say £50 quid gross for the pub. Colleague goes to order food and drinks and pay at the bar. Apologetic barmaid comes over to explain that their “card machine” is down, so she can only accept cash. Under normal circumstances I would have simply walked out, feeling it wholly inappropriate to reward such a poorly managed establishment and, as a functioning actor in a capitalist economy, done my duty to depress their lunchtime takings. Here’s what we wanted to say: This is absurd. This is 2016 not 1916. Your card machine is down? Well, so what! Are you seriously telling me that mein host has no mobile phone number capable of registering for PingIt or PayM? That none of the staff or the pub itself have a PayPal account that I can send the money to? That neither the owners nor managers not contingency planners thought to tuck an iZettle behind the bar to use when the clunky and expensive GPRS terminal fails for o...

Financial Cryptography: Corda Day - a new force

Forum friend Ian Grigg, who I always take very seriously indeed on any such topic, wrote about Corda on his blog and concluded with a powerful statement. Bitcoin told the users it wanted an unstoppable currency - sure, works for a small group but not for the mass market. Ethereum told their users they need an unstoppable machine - which worked how spectacularly with the DAO? Not. What. We. Wanted. Corda is the only game in town because it's the only one that asked the users. It's that simple. From Financial Cryptography: Corda Day - a new force xxx It seems to me, however, what Ian is pointing to as the greatest strength of their approach is also the greatest weakness. A staple feature of unimaginative management consultants presentations about innovation is some variation on the statement by Henry Ford that if you had asked users what they wanted, they would have asked for faster horses coupled with some variation on the statement by Steve jobs that it was pointless ask...

We could fix mobile security, you know. We don't, but we could

Earlier in the week I blogged about mobile banking security , and I said that in design terms it is best to assume that the internet is in the hands of your enemies. In case you think I was exaggerating… The thieves also provided “free” wireless connections in public places to secretly mine users’ personal information. From Gone in minutes: Chinese cybertheft gangs mine smartphones for bank card data | South China Morning Post Personally, I always use an SSL VPN when connected by wifi (even at home!) but I doubt that most people would ever go to this trouble or take the time to configure a VPN and such like. Anyway, the point is that the internet isn’t secure. And actually SMS isn’t much better, which is why it shouldn’t really be used for securing anything as important as home banking. The report also described how gangs stole mobile security codes – which banks automatically send to card holders’ registered mobile phones to verify online transactions – by using either a Trojan...