Dan Q

Tag: cryptocurrencies

Enumerating Domains

I’ve just enumerated my personal domain names. There’s a lot fewer of them than there used to be!1

Anyway: here’s the list –

I think that’s all of them, but it’s hard to be sure…

Footnotes

1 Maybe I’ve finally shaken off my habit of buying a domain name for everything. Or maybe it’s just that I’ve embraced subdomains for more stuff. Probably the latter.

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[Bloganuary] Uninvention

This post is part of my attempt at Bloganuary 2024. Today’s prompt is:

If you could un-invent something, what would it be?

Fucking cryptocurrency.

Industrial sprawl at sunset: countless tall chimneys belch smoke alongside crisscrossing power lines. In the smoke, the outline of "physical" Bitcoins can be seen.
To preempt the inevitable “well actually”: yes, I’m fully aware that there exist cryptocurrencies that have minimal environmental impact. I concede that those cryptocurrencies might only have all the other problems. Stop talking to me about how great you think Ripple is.

I remember when Bitcoin first appeared. A currency based on a ledger recorded in a shared blockchain sounded pretty cool from a technological standpoint, and so – as a technology enthusiast – I experimented with it.

I recall that I bought a couple of Bitcoin; I think they were about 50 pence each? It seemed like a “toy” currency; nothing that would ever attract any mainstream attention. After all: why would it? It’s less-anonymous than cash. It’s less-convenient than cards. It’s (even) less-widely-accepted than cheques. It somehow manages to be somehow slower than everything. And crucially, without any government backing it can’t be used to settle a debt or pay your taxes1. The technology was interesting to me, but it had no real-world application.

Screengrab from BEEF Series 1, Episode 1, showing a held mobile phone showing a Bitcoin wallet's value crashing by 87%
When a conventional currency does something like this, we call it a catastrophe. When a cryptocurrency does it, we call it a Thursday.

Imagine my surprise when people started investing in the cryptocurrency. Began accepting it in payment for things. I know a tulip economy when I see one, I figured, so I got rid of my “toy” Bitcoins when the price hit around £750 each2. Sure, it’d have been “smarter” to wait until it hit £45,000 each, but I genuinely thought the bubble was going to burst and, besides, I’d never wanted to get into that game to begin with: I was just playing about with an interesting bit of technology when suddenly half the world began talking about it.

The world taking cryptocurrencies seriously was the worst thing that ever happened to them. When they were just a toy, nobody “invested” in them. Nobody built planet-destroying mining rigs to compete to produce more of them. Nobody used them as a vehicle to make ransomware feasible or set up elaborate Ponzi schemes or get-rich-quick scams off the back of them.

(Fake) cryptolocker screenshot that implies that DanQ.me has encrypted your files and will only decrypt them if you send 1 EGX (Emma GoldCoin).
DanQ.me has encrypted all your files. As Emma GoldCoin is the only cryptocurrency I can get behind, I demand you send me 1 EGX to unlock them. (No, don’t go and check; I promise they’re encrypted! Just take my word on it!)

And yeah, with few exceptions (of which Emma GoldCoin is the best), cryptocurrencies not only provide a vehicle for scammers, do nothing to combat inequality (and potentially make it worse by tying it to the digital divide), and destroy the planet… but they generally don’t even achieve the promises they make of anonymous, decentralised, stable, utilitarian currencies.

I’m not going to deep-dive into everything that’s wrong with cryptocurrencies3 (and I’m not going near NFTs, but rest assured they’re even stupider). There’s plenty of more-eloquent people online who can explain it to you if you need to; start at Web3IsGoingGreat.com if you like.

So yeah, if we could just uninvent cryptocurrencies, or at least uninvent whatever it is the masses think they see in them, then that’d be just great, thanks.

Footnotes

1 Being legal tender and being useful to pay your taxes are the magic beans that make fiat currencies worth something.

2 Sometimes, people mistake me for somebody with any level of interest in cryptocurrency “investment”. After I’m done correcting their misapprehension, I enjoy pointing out that I made a 150,000% return-on-investment on cryptocurrencies and I still recommend against anybody getting involved in them.

3 If I can pick out just one pet hate, though, that trumps all the others: it’s the “cryptobros” who call cryptocurrencies “crypto”, as if that wasn’t a prefix that already had a plethora of better-established uses, all of which are undermined by the co-opting of their name. It’s somehow even worse than the idiots who shorten Wikipedia to “wiki”.

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EGXchange – a digital EGX wallet

I’ve just launched EGXchange.org, a digital wallet for new currency Emma Goldcoin, which I’ve mentioned previously (including a discussion with the author in my comments section).

Homepage of EGXchange.org, showing the slogan "Everybody has an EGX wallet. Log in to yours now."
Of course, you don’t strictly need a digital wallet to use EGX. But as we’re in a culture where people invariably ask “is there an app for it?”, I thought I’d make one.

You can install it as an offline-first progressive web application, which means that this could be the first ever digital currency to have an app that works without an Internet connection. That’s probably something no other digital currency can claim to have, right?

Here’s what it looks like if I send 0.1 EGX to my friend Chris using the app:

Naturally, I wouldn’t be backing Emma Goldcoin if it didn’t represent such a brilliant step up better-known digital currencies like Bitcoin, Ripple, and Etherium. Specific features unique to Emma Goldcoin include:

  • Using it doesn’t massively contribute to energy wastage and environmental damage.
  • It doesn’t increase the digital divide by helping early adopters at the expense of late adopters.
  • It’s entirely secure: it’s mathematically impossible to “steal”EGX.
  • Emma Goldcoin is so simple that you don’t even need a computer to use it: it “just works”.

Sure, it’s got its downsides, and I’d encourage you to read the specification if you’d like to learn more about what those are. Or if you already know what EGX is all about and just want to try a new way to manage your portfolio, give my new site EGXchange.org a go!

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Emma GoldCoin

This is a repost promoting content originally published elsewhere. See more things Dan's reposted.

…

EGX fixes all the problems with all the existing cryptocurrencies once and for all. In particular it fixes the problems around security, environmental impact and ease of use that beset all other known blockchain-based cryptocurrency offerings.

  • Security

Due to the unique way in which the EGX blockchain is constructed, EGX cannot be hacked and will never be hacked. Period. There are and never will be any security issues with EGX. No other cryptocurrency on or off the planet can claim this.

  • Environment

Whether based on Proof Of Work or Proof of Stake, all other blockchains have a non-negligible and non-zero environmental impact. EGX however is based on neither of these. Instead it is based on Proof Of Existence, described below. PoE has a minimum environmental impact that is provably zero. Individual EGX implementations may have greater environmental impact than this, but that is entirely on the implementor. EGX PoE can be as low as zero if you wish, and we can prove this.

  • Ease Of Implementation

Due to its unique properties, no other cryptocurrency is or ever will be easier to implement and work with as EGX. This is not an empty claim – again, we can prove this.

…

Now here’s a cryptocurrency I can get behind. Shut up and take my money!

Repost posted at UTC on .

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Basilisk collection

This is a repost promoting content originally published elsewhere. See more things Dan's reposted.

Basilisk collection

The basilisk collection (also known as the basilisk file or basilisk.txt) is a collection of over 125 million partial hash inversions of the SHA-256 cryptographic hash function. Assuming state-of-the art methods were used to compute the inversions, the entries in the collection collectively represent a proof-of-work far exceeding the computational capacity of the human race.[1][2] The collection was released in parts through BitTorrent beginning in June 2018, although it was not widely reported or discussed until early 2019.[3] On August 4th, 2019 the complete collection of 125,552,089 known hash inversions was compiled and published by CryTor, the cybersecurity lab of the University of Toronto.[4]

The existence of the basilisk collection has had wide reaching consequences in the field of cryptography, and has been blamed for catalyzing the January 2019 Bitcoin crash.[2][5][6]

…

Electronic Frontier Foundation cryptographer Brian Landlaw has said that “whoever made the basilisk is 30 years ahead of the NSA, and the NSA are 30 years ahead of us, so who is there left to trust?”[35]

…

This is fucking amazing, on a par with e.g. First on the Moon.

Presented in the style of an alternate-reality Wikipedia article, this piece of what the author calls “unfiction” describes the narratively believable-but-spooky (if theoretically unlikely from a technical standpoint) 2018 disclosure of evidence for a new presumed mathematical weakness in the SHA-2 hash function set. (And if that doesn’t sound like a good premise for a story to you, I don’t know what’s wrong with you! 😂)

Cryptographic weaknesses that make feasible attacks on hashing algorithms are a demonstrably real thing. But even with the benefit of the known vulnerabilities in SHA-2 (meet-in-the-middle attacks that involve up-to-halving the search space by solving from “both ends”, plus deterministic weaknesses that make it easier to find two inputs that produce the same hash so long as you choose the inputs carefully) the “article” correctly states that to produce a long list of hash inversions of the kinds described, that follow a predictable sequence, might be expected to require more computer processing power than humans have ever applied to any problem, ever.

As a piece of alternate history science fiction, this piece not only provides a technically-accurate explanation of its premises… it also does a good job of speculating what the impact on the world would have been of such an event. But my single favourite part of the piece is that it includes what superficially look like genuine examples of what a hypothetical basilisk.txt would contain. To do this, the author wrote a brute force hash finder and ran it for over a year. That’s some serious dedication. For those that were fooled by this seemingly-convincing evidence of the realism of the piece, here’s the actual results of the hash alongside the claimed ones (let this be a reminder to you that it’s not sufficient to skim-read your hash comparisons, people!): 

basilisk:0000000000:ds26ovbJzDwkVWia1tINLJZ2WXEHBvItMZRxHmYhlQd0spuvPXb6cYFJorDKkqlA

claimed: 0000000000000000000000161b9f84a187cc21b172bf68b3cb3b78684d8e9f17
 actual: 00000000000161b9f84a187cc21b1752bf678bdd4d643c17b3b786684d8e9f17

basilisk:0000000001:dMHUhnoEkmLv8TSE1lnJ7nVIYM8FLYBRtzTiJCM8ziijpTj95MPptu6psZZyLBVA

claimed: 0000000000000000000000cee5fe5df2d3034fff435bb40e8651a18d69e81460
 actual: 0000000000cee5fe5df2d3034fff435bb4232f21c2efce0e8651a18d69e81460

basilisk:0000000002:aSCZwTSmH9ZtqB5gQ27mcGuKIXrghtYIoMp6aKCLvxhlf1FC5D1sZSi2SjwU9EqK

claimed: 000000000000000000000012aabd8d935757db173d5b3e7ae0f25ea4eb775402
 actual: 000000000012aabd8d935757db173d5b3ec6d38330926f7ae0f25ea4eb775402

basilisk:0000000003:oeocInD9uFwIO2x5u9myS4MKQbFW8Vl1IyqmUXHV3jVen6XCoVtuMbuB1bSDyOvE

claimed: 000000000000000000000039d50bb560770d051a3f5a2fe340c99f81e18129d1
 actual: 000000000039d50bb560770d051a3f5a2ffa2281ac3287e340c99f81e18129d1

basilisk:0000000004:m0EyKprlUmDaW9xvPgYMz2pziEUJEzuy6vsSTlMZO7lVVOYlJgJTcEvh5QVJUVnh

claimed: 00000000000000000000002ca8fc4b6396dd5b5bcf5fa80ea49967da55a8668b
 actual: 00000000002ca8fc4b6396dd5b5bcf5fa82a867d17ebc40ea49967da55a8668b

Anyway: the whole thing is amazing and you should go read it.

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Note #14082

A hundred zucks

In the remote chance that @Facebook‘s #LibraCoin [Wikipedia] takes off, I suggest that the appropriate slang term for the currency shall be zucks.

As in: “I’ll bet you a hundred zucks that this new #cryptocurrency will be barely more-successful than Dogecoin, and far less-cute.”

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Dropgangs, or the future of darknet markets

This is a repost promoting content originally published elsewhere. See more things Dan's reposted.

The Internet is full of commercial activity and it should come at no surprise that even illegal commercial activity is widespread as well. In this article we would like to describe the current developments – from where we came, where we are now, and where it might be going – when it comes to technologies used for digital black market activity.

…

The other major change is the use of “dead drops” instead of the postal system which has proven vulnerable to tracking and interception. Now, goods are hidden in publicly accessible places like parks and the location is given to the customer on purchase. The customer then goes to the location and picks up the goods. This means that delivery becomes asynchronous for the merchant, he can hide a lot of product in different locations for future, not yet known, purchases. For the client the time to delivery is significantly shorter than waiting for a letter or parcel shipped by traditional means – he has the product in his hands in a matter of hours instead of days. Furthermore this method does not require for the customer to give any personally identifiable information to the merchant, which in turn doesn’t have to safeguard it anymore. Less data means less risk for everyone.

The use of dead drops also significantly reduces the risk of the merchant to be discovered by tracking within the postal system. He does not have to visit any easily to surveil post office or letter box, instead the whole public space becomes his hiding territory.

…

From when I first learned about the existence of The Silk Road and its successors – places on the dark web where it’s possible to pseudo-anonymously make illicit purchases of e.g. drugs, weapons, fake ID and the like in exchange for cryptocurrencies like Bitcoin – it always seemed to me that the weak point was that the “buyer” had to provide their postal address to the “seller”. While there have, as this article describes, been a number of arrested made following postal inspections (especially as packages cross administrative boundaries), the bigger risk I’d assume that this poses to the buyer is that they must trust the seller (who is, naturally, a bigger and more-interesting target) to appropriately secure and securely-destroy that address information. In the event of a raid on a seller – or, indeed, law enforcement posing as a seller in a sting operation – the buyer is at significant risk.

That risk may not be huge for Johnny Pothead who wants to buy an ounce of weed, but it rapidly scales up for “middleman” distributors who buy drugs in bulk, repackage, and resell either on darknet markets or via conventional channels: these are obvious targets for law enforcement because their arrest disrupts the distribution chain and convictions are usually relatively easy (“intent to supply” can be demonstrated in many jurisdictions by the volume of the product in which they’re found to be in possession). A solution to this problem, for drug markets at least, with the fringe benefit of potentially faster-deliveries is pre-established dead drops (the downside, of course, is a more-limited geographical coverage and the risk of discovery by a non-purchaser, but the latter of these can at least be mitigated), and it’s unsurprising to hear that this is the direction in which the ecosystem is moving. And once you, Jenny Drugdealer, are putting that kind of infrastructure in place anyway, you might as well extend it to your regular clients too. So yeah: not surprising to see things moving in this direction.

I recall that some years ago, a friend whom I’m introduced to geocaching accidentally ran across a dead drop (or a stash) while hunting for a ‘cache that was hidden in the same general area. The stash was of clearly-stolen credit cards, and of course she turned it in to the police, but I think it’s interesting that these imaginative digital-era drug dealers, in trying to improve upon a technique popularised by Cold War era spies by adding the capacity for long-time concealment of dead drops, are effectively re-inventing what the geocaching community has been doing for ages.

What will they think of next? I’m betting drones.

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Asymmetric Cryptography: Works Like Magic

This is a repost promoting content originally published elsewhere. See more things Dan's reposted.

Asymmetric Cryptography: Works Like Magic (cyberhoboing with dominic tarr)

It’s a common complaint that cryptography is too hard for regular people to understand – and that all our current cryptographically secure applications are designed for cyborgs and not humans. While…

It’s a common complaint that cryptography is too hard for regular people to understand – and that all our current cryptographically secure applications are designed for cyborgs and not humans. While the latter charge may well be correct, I argue that the former most certainly isn’t, because we have been teaching children the basic security principles behind asymmetric cryptography for probably thousands of years.

What am I talking about? A fairly tail called Rumplestiltskin, which is actually about bitcoin!

You probably heard this fairly tale as a child – but let me refresh your memory.

There is a miller, who drunkenly brags that is daughter can spin straw into gold.

probably, he was posting about his half baked cryptocurrency ideas on bitcointalk, and creating money “gold” from pointless work “spinning straw” sounds A LOT like bitcoin mining.

Anyway, the king is very impressed with his story.

the king is a venture capitalist?

And wants to see a demonstration, oh and if it doesn’t work he will cut off both their heads.

I have not heard about venture capitalists being quite this evil, but it seems some of them are into this medieval stuff

Of course, the miller and his daughter don’t actually have the ability to create gold by magic, so they are in big trouble! but just then a magic imp appears.

a hacker, who understands cryptography

The imp says he can spin straw into gold, but for a price: the daughter’s first born child.

in the modern version he wants her naked selfies

It’s a terrible deal, but the alternative is death, so they reluctantly accept. The imp spins straw into gold in 3 increasingly dramatic episodes.

The kind is satisified, and marries the daughter, making her queen.

their startup is aquired

One year later, the first child is born. The imp returns demanding his prize. Because they love their baby, the King and Queen pleads with the imp to get out of the deal. They offer him all their riches, but the imp is not interested! Desperately, they ask is there any other way? any at all? The imp replies, “Of course not! not unless you can guess my True Name”

the true name is actually his private key. If they can guess that, the hacker looses his magical power over them

“Okay I will try and guess your name” says the Queen. The imp just laughs! “you’ll never guess it!” “but I’ll give you three days to try!”

The imp skips off into the forrest, and the queen trys to think of his name for 3 days… but can’t figure it out.

The queen trys to brute force his private key. but there is not enough compute in the entire kingdom!

But then, the a messenger is travelling through the forrest, and he happens past a strange little man, dancing around a camp fire, singing:

ha ha ha!
te he he!
they’ll never guess my private key!
just three days! not enough to begin,
to guess my name is rumplestiltskin!

Being a messenger, he had a good memory for things he heard. When he arrived back at the castle, he mentioned the curious story to the queen.

the hacker had been careless with his private key

When the imp arrived in the morning, the queen greeted him by name. He was furious! He stamped his foot so hard the ground split open and then he fell into the gaping hole, never to be seen again. The king, queen, baby lived happily ever after, etc, etc.

they stole all his bitcoin

The simularities between this fairly tale and cryptography is uncanny. It has proof of work, it has private keys, it has an attempted brute force attack, and a successful (if accidental) end point attack. The essential point about your private key is captured successfully: the source of your magic is just a hard to guess secret, and that it’s easy to have a hard to guess name, but what gets you in the end is some work around when they steal your key some other way. This is the most important thing.

It’s not a talisman that can be physically protected, or an inate power you are born with – it’s just a name, but it must be an ungessable name, so the weirder the better.

“rumplestiltskin” is the german name for this story, which became wildly known in english after the brothers grim published their collection of folktales in the early 19th century, but according to wikipedia there are versions of this story throughout the europe, and the concept that knowing the true name of a magical creature give one power over it is common in mythology around the world.

How did the ancients come up with a children’s story that quite accurately (and amusingly) explains some of the important things about asymettric cryptography, and yet we moderns did not figure out the math that makes this possible this until the 1970’s?

Since the villian of the story is magical, really they have chosen any mechanism for the imps magic, why his name? Is this just a coincidence, or was there inspiration?

The astute reader has probably already guessed, but I think the simplest (and most fun) explaination is the best: extraterrestials with advanced cryptosystems visited earth during prehistory, and early humans didn’t really understand how their “magic” worked, but got the basic idea

To be continued in PART 2…

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“I Forgot My PIN”: An Epic Tale of Losing $30,000 in Bitcoin

This is a repost promoting content originally published elsewhere. See more things Dan's reposted.

In January 2016, I spent $3,000 to buy 7.4 bitcoins. At the time, it seemed an entirely worthwhile thing to do. I had recently started working as a research director at the Institute for the Future’s Blockchain Futures Lab, and I wanted firsthand experience with bitcoin, a cryptocurrency that uses a blockchain to record transactions on its network. I had no way of knowing that this transaction would lead to a white-knuckle scramble to avoid losing a small fortune…

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A hacker stole $31M of Ether – how it happened and what it means for Ethereum

This is a repost promoting content originally published elsewhere. See more things Dan's reposted.

Yesterday, a hacker pulled off the second biggest heist in the history of digital currencies.

Around 12:00 PST, an unknown attacker exploited a critical flaw in the Parity multi-signature wallet on the Ethereum network, draining three massive wallets of over $31,000,000 worth of Ether in a matter of minutes. Given a couple more hours, the hacker could’ve made off with over $180,000,000 from vulnerable wallets.

But someone stopped them…

Hacker figure among code

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