I'm designing an identity-less, ephemeral messaging protocol where messages can be forged after-the-fact. The goal is protection against coercion or device seizure scenarios.

Core mechanism:

• Session keys derived via SPAKE2 from shared secret
• ChaCha20 encryption with deterministic nonces: sequence || timestamp
• HMAC authentication during conversation

Forgery capability: Anyone with session keys can create alternative messages using the same sequence/timestamp that decrypt to different content.

My question: Does this actually achieve cryptographic deniability? Are there ways someone could distinguish a real conversation transcript from a forged one?

I have a working prototype and want to validate that the approach is sound.

Edit: I totally meant to post this in a cryptography community, not cryptocurrency, haha. Sorry!

cross-posted from: https://realbitcoin.cash/post/114645

There are people who knew this 10 years ago, this is why Bitcoin Cash was born.

New Release of Zenith Zcash wallet

via @vergaratech

https://zeal.center/@vergaratech/114750088564684569

@cryptocurrency

According to their 2025 roadmap.

Forum discussion about the topic: https://forum.zcashcommunity.com/t/zcash-should-aggressively-pursue-maya-protocol-integration/46702

cross-posted from: https://realbitcoin.cash/post/40532

Electron Cash wallet with CashFusion - https://electroncash.org/

cross-posted from: https://realbitcoin.cash/post/31779

Pump.Fun is a token launchpad which allows anyone to simply create their own token which then is issued by a smart contract to anyone who wishes to purchase. After 80% has purchased the remainder is added as liquidity on a DEX. The creator of the token also get a reward.

This concept has been ported over to Bitcoin Cash showcasing the advanced smart contract capabilities of Bitcoin.

Have a look @ https://bchpump.cash/pump

The tokens get deployed on Cauldron DEX https://app.cauldron.quest/

We're all anxious to make some cash aren't we ?

My LPs have dropped out of range and my passive income has almost dried up. Even my single sided stable rates have reduced rates

cross-posted from: https://realbitcoin.cash/post/16274

"To ensure full compliance with these new regulations, we needed to act immediately..... removal of the DEX and bridge features from Komodo Wallet"

🚨 Make sure to remove all your funds and stop using this platform! Let's show them this is not OK. 🚨

cross-posted from: https://lemmy.ml/post/24975866

cross-posted from: https://lemmy.ml/post/24975827

Do you think a corporation would do anything to get an extra 1% return on their next quarterly report? Would they do things that hurt them in the long-term just so this quarter looked good? Make their products worse for a quick buck? Fuck over their long-term employees they spent years training? Skimp on quality and safety? Yes. They absolutely would. Corporations pay 3-5% on credit card fees and wait weeks for settlement. Lightning is <1% and it's instant. It's that simple. That's why Bitcoin lightning is going to win in the long run.

It's the same reason the food cart down the street takes venmo: because, at one time, venmo was free, which made it cheaper than credit cards. It's not free now though, because it couldn't be sustainably free, because nothing is free, and because venmo has every incentive to suck every dollar of profit out of those transactions it can. They have a captive audience. Lightning doesn't work that way. Liquidity providers, nodes, etc they all have to compete for your payment, so over time, fees get lower, not higher. Venmo isn't growing in adoption any more among merchants, lightning is.

The savings on fees is so significant that merchants can offer a discount to customers equivalent to the customer's normal credit card cash back and the merchant can still save money compared to credit cards. Last time Bitcoin got real hyped and lots of merchant adoption, fees and transaction confirmation times became a limiting factor. That factor is gone now. Cash App, in the US, has 25% market penetration. That's a lightning wallet. When customers realize they can get a 3% discount everywhere just by using it? Game over for credit cards.

If you haven't tried lightning, it's awesome. Instant confirmation, fees <1%, and very decentralized. There were some growing pains, but it's pretty robust now, I use it on a daily basis. It's where the majority of Bitcoin transactions occur, and nostr users alone are using it to send millions of transactions a month.

cross-posted from: https://realbitcoin.cash/post/1112

Bitcoin Cash is quickly becoming the go to chain where DeFi apps are being deployed since builders know they will not run into scaling issues which can threaten the growth of their apps.

Introducing the Zashi-Keystone hardware wallet integration for Shielded ZEC

https://electriccoin.co/blog/drumroll-please-introducing-zashi-keystone-hardware-wallet-integration-for-shielded-zec/

@cryptocurrency

cross-posted from: https://programming.dev/post/22952335

Hi Lemmy,

I'm Martin and have been working on a free and open-source, fully DIY crypto hardware wallet for a couple of months now. I' ve just published the first functional preview of the firmware, which can be built by anyone easily using Arduino IDE, and flashed to a variety of $5-off-the-shelve ESP32 boards from Aliexpress.

The first release will allow for storing up to 30 encrypted seed phrases, and Ethereum signing via Bluetooth Low Energy. Under the hood, it's powered by the cryptographic libraries written and used by Trezor.io.

Support for more interfaces and chains can be added fairly easily due to a modular structure, and there is a whole roadmap planned to extend functionality (starting with support for displays).

If you're interested to learn more, check out the README in the Colibri repository.

Please let me know what you think, and leave a 🌟 on Github if you like the project.

Also if there's anything that you've always missed in or been annoyed by a hardware wallet, your input would be greatly appreciated!

cross-posted from: https://infosec.pub/post/17011376

Decentralized governance starts now for Cardano.

The first-ever fully decentralized governance system for use in upgrades and hard forks. THIS IS HUGE and it will only evolve in a community-controlled decentralized manner from here on out.