I’m certainly me

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[Neil McEvoy] I’ve been at the EEMA e-Identity conference in Tallinn, Estonia. I’ve heard a lot of people say that relying parties need to know the ‘level of assurance’ that can be ascribed to someone’s claimed identity, or in some attribute associated with an identity. A somewhat stronger version of this that I’ve also heard is that they must know the ‘probability’ that a claimed identity (or attribute) is correct.

This leaves me perplexed. If I see a die that looks like a regular cube, I can postulate that there is a one in six probability that if I throw it once I will get a six. I have implicitly assumed a couple of things; that my vision is sufficiently acute to spot any irregularity in its shape, and that the die is of an even density (strictly speaking, that the distribution of mass has cubic symmetry). I can test my proposition by throwing the die (say) 96 times. If I get roughly 16 of each number, my confidence will be increased (in a way which can be quantified) that it is a true die and that my initial postulation is correct. The points here are that:

  • my assertion on the probability rests on a limited number of assumptions
  • it can be tested
  • the more tests I do, the more confidence I can have
  • the past is a reliable guide to the future.

None of these are the case when trying to assess the veracity of a claim to a certain identity. If you receive a bundle of bits that encodes ‘Neil McEvoy’ (with some ancillary bits that indicate that some process, designed to validate the claim to my identity, has occurred), you cannot know the probability that I caused that bundle to reach you. I either did or I didn’t; but the number of ways in which I might not have is not known to you—or anyone.  Neither would you generally be in a position to repeat the process a hundred times and check the number of times that it is me or isn’t me. And, even if you could, there is no way that you can be sure that the past experience is a reliable guide to the future.

If we want an analogy with a die, it is that you receive some bits from me that purport to represent one throw of one die. Now, a die may not have been thrown—I could have made it up. It may have been thrown and I reported the wrong number, by accident or design; someone may have told me to type ‘6’ while holding a gun to my head; someone may have tricked me by handing me a die with two sixes and no ones; someone may have stolen the credentials I use to ‘prove’ that I entered a report; someone may have broken the cryptographic algorithm used to sign the transmission; or, for that matter, some Rumsfeldian ‘unknown unknown’ may have occurred. I think it is pretty clear that the probability that a report reaching you is truthful cannot be calculated, nor divined by any experiment.

So what should a relying party want? Clearly, not to be told by a provider that they can provide electronic identities that are 99.9% truthful, for such a person is a fool or a knave. By all means, he should expect the provider to have confidence in his service; but that is worth nothing unless he puts his money where his mouth is. The provider who accepts liability and has the balance sheet or the insurance to meet any losses that might ensue from your reliance on a false claim, that they have endorsed, is the only one that is worthy of your business. They will have every incentive to employ cost-effective business processes and technical measures that will limit the necessity for meeting claims.

These are personal opinions and should not be misunderstood as representing the opinions of
Consult Hyperion or any of its clients or suppliers

Technologist can’t square circles, but we can help

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What do the politicians, regulators, police and the rest of them want us (technologists) to do about the interweb tubes? It might be easier to work out what to do if we had a clear set of requirements from them. Then, when confronted with a problem such as, for example, identity theft, we could build systems to make things better. In that particular case, things are currently getting worse.

Mr Bowron told the MPs this week that although recovery rates were relatively low, the police detection rate was 80 per cent. However, the number of cases is rising sharply with nearly 2m people affected by identity fraud every year.

[From FT.com / UK / Politics & policy – MP calls cybercrime Moriarty v PC Plod]

So, again, to pick on this paricular case, what should be done?

Mr Head also clarified his position on the safety of internet banking, insisting that while traditional face-to-face banking was a better guarantee against fraud, he accepted that society had moved on. “If you take precautions, it’s safe,” he said.

[From FT.com / UK / Politics & policy – MP calls cybercrime Moriarty v PC Plod]

Yet I remember reading in The Daily Telegraph (just googled it: 20th November 2010) there was a story about an eBay fraud perpetrated by fraudsters who set up bank accounts using forged identity documents, so face-to-face FTF does not, as far as I can see, mean any improvement in security at all. In fact, I’m pretty sure that it is worse than nothing, because people are easier to fool than computers. I would argue that Mr. Head has things exactly wrong here, because we an integrated identity infrastructure should not discriminate between FTF and remote transactions.

I think this sort of thing is actually representative of a much bigger problem around the online world. Here’s another example. Bob Gourley. the former CTO of the U.S. Defense Intelligence Agency, poses a fundamental and important question about the future identity infrastructure.

We must have ways to protect anonymity of good people, but not allow anonymity of bad people. This is going to be much harder to do than it is to say. I believe a structure could be put in place, with massive engineering, where all people are given some means to stay anonymous, but when a certain key is applied, their cloak can be peeled back. Hmmm. Who wants to keep those keys

[From A CTO analysis: Hillary Clinton’s speech on Internet freedom | IT Leadership | TechRepublic.com]

So, just to recap, Hillary says that we need an infrastructure that stops crime but allows free assembly. I have no idea how to square that circle, except to say that prevention and detection of crime ought to be feasible even with anonymity, which is the most obvious and basic way to protect free speech, free assembly and whistleblowers: it means doing more police work, naturally, but it can be done. By comparison, “knee jerk” reactions, attempting to force the physical world’s limited and simplistic identity model into cyberspace, will certainly have unintended consequences.

Facebook’s real-name-only approach is non-negotiable – despite claims that it puts political activists at risk, one of its senior policy execs said this morning.

[From Facebook’s position on real names not negotiable for dissidents • The Register]

I’ve had a Facebook account for quite a while, and it’s not in my “real” name. My friends know that John Q. Doe is me, so we’re linked and can happily communicate, but no-one else does. Which suits me fine. If my real name is actually Dave bin Laden, Hammer of the Infidel, but I register as John Smith, how on Earth are Facebook supposed to know whether “John Smith” is a “real” name or not? Ludicrous, and just another example of how broken the whole identity realm actually is.

For Facebook to actually check the real names, and then to accept the liabilities that will inevitably result, would be expensive and pointless even if it could be achieved. A much better solution is for Facebook to help to the construction and adoption of a proper digital identity infrastructure (such as USTIC, for example) and then use it.

The implementation of NSTIC could force some companies, like Facebook, to change the way it does business.

[From Wave of the Future: Trusted Identities In Cyberspace]

That’s true, but it’s a good thing, and it’s good for Facebook as well as for other businesses and society as a whole. So, for example, I might use a persistent pseudonymous identity given to me by a mobile operator, say Vodafone UK. If I use that identity to obtain a Facebook identity, that’s fine by Facebook: they have a certificate from Vodafone UK to say that I’m a UK citizen or whatever. I use the Vodafone example advisedly, because it seems to me that mobile operators would be the natural providers of these kinds of credentials, having both the mechanism to interact FTF (shops) and remotely, as well as access to the SIM for key storage and authentication. Authentication is part of the story too.

But perhaps the US government’s four convenient “levels of assurance” (LOAs), which tie strong authentication to strong identity proofing, don’t apply to every use case under the sun. On the recent teleconference where I discussed these findings, we ended up looking at the example of World of Warcraft, which offers strong authentication but had to back off strong proofing.

[From Identity Assurance Means Never Having To Say “Who Are You, Again?” | Forrester Blogs]

Eve is, naturally, absolutely right to highlight this. There is no need for Facebook to know who I really am if I can prove that Vodafone know who I am (and, importantly, that I’m over 13, although they may not be for much longer given Mr. Zuckerberg’s recent comments on age limits).

These are personal opinions and should not be misunderstood as representing the opinions of
Consult Hyperion or any of its clients or suppliers

Paleo-crypto

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In some of the workshops that I’ve been running, I’ve mentioned that I think that transparency will be one of the key elements of new propositions in the world of electronic transactions and that clients looking to develop new businesses in that space might want to consider the opportunities for sustained advantage. Why not let me look inside my bank and see where my money is, so to speak? If I log in to my credit card issuer I can see that I spent £43 on books at Amazon: if I log in to Amazon I can that I spent £43 but I can also see what books I bought, recommendations, reviews and so on. They have the data, so they let me look at it. If I want to buy a carpet from a carpet company, how do I know whether they will go bankrupt or not before they deliver? Can I have a look at their order book?
Transparency increases confidence and trust. I often use a story from the August 1931 edition of Popular Mechanics to illustrate this point. The article concerns the relationship between transparency and behaviour in the specific case of depression-era extra-judicial unlicensed wealth redistribution…

BANK hold-ups may soon become things of the past if the common-sense but revolutionary ideas of Francis Keally, New York architect, are put into effect. He suggests that banks be constructed with glass walls and that office partitions within the building likewise be transparent, so that a clear view of everything that is happening inside the bank will be afforded from all angles at all times.

[From Glass Banks Will Foil Hold-Ups]

I urge you to clink on the link, by the way, to see the lovely drawing that goes with the article. The point is well made though: you can’t rob a glass bank. No walls, no Bernie Madoff. But you can see the problem: some of the information in the bank is confidential: my personal details, for example. Thus, it would be great if I could look through the list of bank deposits to check that the bank really has the money it says it has, but I shouldn’t be able to see who those depositors are (although I will want third-party verification that they exist!).

Why am I talking about this? Well, I read recently that Bank of America has called in management consultants to help them manage the fallout from an as-yet-nonexistent leak of corporate secrets, although why these secrets be prove embarrassing is not clear. In fact, no-one knows whether the leak will happen, or whether it will impact BofA, although Wikileaks’ Julian Assange had previously mentioned having a BofA hard disk in his possession, so the market drew its own conclusions.

Bank of America shares fell 3 percent in trading the day after Mr. Assange made his threat against a nameless bank

[From Facing WikiLeaks Threat, Bank of America Plays Defense – NYTimes.com]

Serious money. Anyway, I’m interested in what this means for the future rather than what it means now: irrespective of what Bank of America’s secrets actually are because

when WikiLeaks, a whistle-blowing website, promised to publish five gigabytes of files from an unnamed financial institution early next year, bankers everywhere started quaking in their hand-made shoes. And businesses were struck by an alarming thought: even if this threat proves empty, commercial secrets are no longer safe.

[From Business and WikiLeaks: Be afraid | The Economist]

Does technology provide any comfort here at all? I think it does. Many years ago, I had the pleasant experience of having dinner with Nicholas Negroponte, John Barlow and Eric Hughes, author of the cypherpunk manifesto, at a seminar in Palm Springs. This was in, I think, 1995. I can remember Eric talking about “encrypted open books”, a topic that now seems fantastically prescient. His idea was to develop cryptographic techniques so that you could perform certain kinds of operations on encrypted data: in other words, you could build glass organisations where anyone could run some software to check your books without actually being able to read your books. Nick Szabo later referred back to the same concepts when talking about the specific issue of auditing.

Knowing that mutually confidential auditing can be accomplished in principle may lead us to practical solutions. Eric Hughes’ “encrypted open books” was one attempt.

[From Szabo]

Things like this seem impossible when you think of books in terms of paper and index cards: how can you show me your books without giving away commercial data? But when we think in terms of bits, and cryptography, and “blinding” it is all perfectly sensible. This technology seems to me to open up a new model, where corporate data is encrypted but open to all so that no-one cares whether it is copied or distributed in any way. Instead of individuals being given the keys to the database, they will be given keys to decrypt only the data that they are allowed to see and since these keys can easily be stored in tamper-resistant hardware (whereas databases can’t) the implementation becomes cost-effective. While I was thinking about this, Bob Hettinga reminded me about Peter Wayner’s “translucent databases“, that build on the Eric’s concepts.

Wayner really does end up where a lot of us think databases will be someday, particularly in finance: repositories of data accessible only by digital bearer tokens using various blind signature protocols… and, oddly enough, not because someone or other wants to strike a blow against the empire, but simply because it’s safer — and cheaper — to do that way.

[From Book Review: Peter Wayner’s “Translucent Databases”]

There are other kinds of corporate data that it may at first seem need to be secret, but on reflection could be translucent (I’ll switch to Peter’s word here because it’s a much better description of practical implementations). An example might be salaries. Have the payroll encrypted but open, so anyone can access a company’s salary data and see what salaries are earned. Publish the key to decrypt the salaries, but not any other data. Now anyone who needs access to salary data (eg, the taxman, pressure groups, potential employees, customers etc) can see it and the relevant company data is transparent to them. One particular category of people who might need access to this data is staff! So, let’s say I’m working on a particular project and need access to our salary data because I need to work out the costs of a proposed new business unit. All I need to know is the distribution of salaries: I don’t need to know who they belong to. If our payroll data is open, I can get on and use it without having to have CDs of personal data sent through the post, of whatever.

I can see that for many organisations this kind of controlled transparency (ie, translucency) will be a competitive advantage: as an investor, as customer, as a citizen, I would trust these organsations far more than “closed” ones. Why wait for quarterly filings to see how a public company is doing when you could go on the web at any time to see their sales ledger? Why rely on management assurances of cost control when you can see how their purchase ledger is looking (without necessarily seeing what they’re buying or who they are buying it from) when you can see it on their web page? Why not check staffing levels and qualifications by accessing the personnel database? Is this any crazier than Blippy?

These opinions are my own (I think) and are presented solely in my capacity as an interested member of the general public [posted with ecto]

Virtual, like dollars

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[Dave Birch] I keep coming back to the topic of virtual worlds, because I’m convinced that they contain some pointers about the future of our “real” economy, even thought the real/virtual boundary is getting rather blurred. Why are US Dollars called “real” when they are backed by nothing, whereas World of Warcraft gold pieces are called “virtual” because they are backed by nothing?

I guess you didn’t read tomorrow’s papers, the elf gets fireballed this afternoon

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[Dave Birch] Last week’s British newspaper headlines about a top snooker player offering to throw frames for large amounts of Eastern European cash is only the latest in a long and increasingly frequent series of sports betting scandals. You may, for example, have been following an interesting story coming from Asia concerning corrupt practices, illegal gambling rackets and other malfeasance in a major sport. No, not cricket’s Indian Premier League (IPL)…

Sports officials suspended the founding commissioner of a popular cricket league in India on Monday and asked him to respond to claims that he had rigged team auctions and improperly structured a broadcasting deal… The suspension is the latest development in what many analysts have described as the biggest scandal in Indian cricket since at least 2000, when several prominent players were accused of fixing matches.

[From Indian Premier League’s Chief Is Suspended in Cricket Scandal – NYTimes.com]

I’m not talking about the real world (as usual) but the virtual one. In Korea, there is a scandal just as big as the IPL one going on but it stems from people with broadband rather than balls.

The largest scandal in e-sports history is currently unfolding in Korea, with revelations that a number of current pro gamers are involved with match set-ups and illegal betting… the story is said to touch many A-list StarCraft celebrities – including sAviOr, Ja Mae Yoon – one of the best-known and most successful players of all time… At this stage, we hear that various pro gamers have been found intentionally losing matches, as well as leaking their team’s replay files to illegal gambling groups.

[From StarCraft cheating scandal rocks Korea « GamePron]

For those of you not familiar with the genre, Starcraft is a computer game from Blizzard (the same people behind World of Warcraft), but the players are spaceship pilots instead of wizards.

After its release, StarCraft rapidly grew in popularity in South Korea, establishing a successful pro-gaming scene. Professional gamers in South Korea are media celebrities, and StarCraft games are broadcast over three television channels dedicated to the professional gaming scene. Professional gamers in South Korea have gained television contracts, sponsorships, and tournament prizes, allowing one of the most famous players, Lim Yo-Hwan,to gain a fan club of over half a million people. One player, Lee Yun-Yeol, reported earnings in 2005 of US$200,000.

[From StarCraft – Wikipedia, the free encyclopedia]

Just to reiterate: there are three TV channels dedicated to this game! It must happen here too as the broadband penetration rises toward Korean levels, and while I can’t imagine turning on the TV to watch someone else playing World of Warcraft, I can at least see that it would be more interesting than the BBC’s Reithian triumph, “Hole in the Wall“.

Where’s the virtual Home Office when you need them?

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[Dave Birch] Let’s be clear: there is something interesting happening around virtual worlds.  I’m not entirely sure what it is, and nor is anyone else, but the primal soup of computer-mediated communications, social networking and immersive 3D graphics is brewing and something will evolve.  This has ramifications for the world of digital identity because, apart from anything else, it changes the way that we think about identity (and multiple identity).  It seems to me that virtual worlds are beginning part of mainstream thinking: my evidence for this is that the moral panic that accompanies all new technologies that enter the mainstream is now under way.

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