What is the fastest known vanity address generator?

Do you love bitcoin smart contracts? Sick of constantly renewing your DLCs with on-chain transactions? Wouldn't you prefer your adorable lil' smart contract to live forever? Now it can.

Conduition

Discreet Log Contract Factories

Bitcoin smart contracts which can be extended infinitely and interrupted at any time.

What's amazing to me is that despite crossing into six figures of USD per bitcoin, median on-chain transaction fees are still at single-digit sats-per-byte rates.

$100k Bitcoin guys and girls. Inevitability makes it no less awe inspiring. Clever purposeful dev teams are the reason why it happened. When people ask me why i'm so confident in Bitcoin, I say it's because i know how many brilliant minds are actively working out the kinks and making Bitcoin practical. With so much 🧠 power we can't help but succeed at least a little bit. Anyways, tick tock next block, I'll see you tomorrow internet.

"Sell me this preimage." You can verifiably purchase the solution to any NP-Complete problem using Bitcoin (and Lightning), combined with zero-knowledge proofs. - Buy the solution to a sudoku puzzle - Buy the prime factors of an RSA key - Bridge HTLCs with PTLCs - Buy a valid proof-of-work - and more...

Conduition

Verifiably Buy Solutions to NP Problems with Bitcoin

Using zero-knowledge proofs to convert a standard HTLC into the purchase of a secret with arbitrary properties.

I went on a deep dive into post-quantum hash-based signatures and tried to apply them to bitcoin. At the end of the article I propose a way to insure today's Bitcoin wallets with a quantum-resistant fallback key, without any consensus changes needed.

Conduition

Hash-Based Signature Schemes for Post-Quantum Bitcoin

All safe roads once were wild.

You can settle Discreet Log Contracts with Chaumian ECash!

Conduition

Discreet Log Contracts with Ecash Notes

Settling Bitcoin smart contracts instantly off-chain using a Chaumian Ecash mint as a trusted blind intermediary.

@calle and other ecash devs: Do you think this would make a candidate NUT extension on the cashu spec? Feedback appreciated 😎

GitHub

Discreet Log Contracts settled with Chaumian ECash by conduition · Pull Request #6 · conduition/conduition.io

Available for reading here: https://conduition.io/cryptography/ecash-dlc/ Suggestions/fixes appreciated 🙂

I made a Rust library for 2-way async TCP sockets with a Noise-powered authenticated encryption layer. Uses the NNpsk0 handshake protocol.

GitHub

GitHub - conduition/tokio-noise: A Noise protocol encryption layer on top of tokio streams.

A Noise protocol encryption layer on top of tokio streams. - conduition/tokio-noise

I suppose bitcoin devs love #Rust for the same reasons they love Bitcoin. The scarcity and careful auditing of variables passed around in memory mirrors the scarcity and careful auditing of UTXOs passed around Bitcoin's ledger. Allocating new memory is as much an event as mining new bitcoins: Regular, but noted and tracked. In Rust, a value may be borrowed many times, but its value may be consumed only once. Bitcoins can likewise be IOU'd countless times, but ultimately only belong to one script-pubkey. By comparison, languages like Go and Javascript feel very... inflationary. They have an opaque, centralized, bloated, and omnipotent garbage collector attached to every runtime which allocates and deallocates memory as it pleases. Memory can be needlessly duplicated thousands of times entirely by accident, or over-collateralized by shared mutable references. Some languages are the opposite, like C: Total anarchy. "Sure, allocate as much memory as you'd like. Deallocate it whenever. Read whatever you want, write wherever. Just try not to segfault." Only Rust, like Bitcoin, strikes the perfect balance of organized chaos: a rehearsed ballet, in which all the dancers know their movements by heart.

As part of the #BackdropBuild Hackathon, I elected to commit myself to making a prototype of the 'Ticketed DLC' protocol I proposed a few months back. 37 days later, here I am with a working prototype. Setting a deadline for yourself can really make a difference - Who knew?

GitHub

GitHub - conduition/dlctix: Ticketed Discreet Log Contracts (DLCs) to enable instant buy-in for wager-like contracts on Bitcoin.

Ticketed Discreet Log Contracts (DLCs) to enable instant buy-in for wager-like contracts on Bitcoin. - conduition/dlctix

There is certainly plenty of optimization and upstream-interop work left to do, and having PTLCs on Lightning would make this SO much more efficient on-chain. But as a proof of concept anyone can play with today, I'm incredibly happy with the result. Running against regtest, all tests are passing, and simulated players can buy into simulated DLCs simply by buying SHA256 preimages (e.g. via Lightning).

I can't put into words how good it feels to make ticketmaster engineers salty enough that they feel obliged to send me hate mail.

Prediction: headlines in 2040 will look like: - "EU bans sale of 'non-approved' phones and laptops" - "Australia cracking down on illegal computation" - "New 'client-side safeties' mandated for all devices produced for sale in USA" Governments can't tolerate our ability to circumvent them with code. The EU is already trying to force backdoors into E2EE messengers. Someday they will escalate to banning general-purpose computing hardware because it can do things they don't like: deepfakes, bitcoin, encryption, TOR. Draconian laws will never stop coming, but we dont have to stop them - We need only slow them down enough that we can out-engineer their weak-ass laws. Wanna help slow them down? Donate to the Satoshi Action Fund or the EFF today using Bitcoin. https://www.satoshiaction.io/

Electronic Frontier Foundation

Defend Privacy and Free Speech

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⚠️ Technical article ahead! I reverse engineered TicketMaster's rotating barcodes for fun and profit. They're actually very easy to pirate.

Conduition

Reverse Engineering TicketMaster's Rotating Barcodes (SafeTix)

"Screenshots won't get you in", but Chrome DevTools will.