Nostr

DM for new npub 1y ago

Replying to

Sjors Provoost

Wired article about the Tornado Cash trial with some quotes by yours truly.

https://www.wired.com/story/tornado-cash-money-laundering-case-crypto-privacy/

DM for new npub 1y ago

It's the modern witch hunt. People were declared witches based on their appearance rather than objective reality.

DM for new npub 1y ago

Replying to

Keychat

The Signal protocol is only responsible for encrypting and decrypting messages.

Yeah, Keychat uses Signal protocol to encrypt / decrypt message.

DM for new npub 1y ago

Interesting, I just read about the double ratchet algorithm: https://signal.org/docs/specifications/doubleratchet/#double-ratchet

Does this mean that users could publish their nsec and their old DMs would not be accessible?

Replying to

Keychat

Signal protocol =/= Signal app. WhatsApp also use signal protocol to achieve end to end encryption.

So keychat users can’t interact with signal app users.

DM for new npub 1y ago

So what does the protocol do? Did you throw signal into the mix for the GUI?

Replying to

Keychat

Yes, nostr relays get those ecash stamp.

We think there is no long-lasting free lunch. So we learn from postal system. Ecash is best e-stamp. relay will be post office, which has income to cover cost.

DM for new npub 1y ago

Cool, perhaps you could consider layering the post stamps if you want to pay the ISP as well :)

Replying to

Keychat

The Introduction of Keychat

Keychat is a chat app, built on Bitcoin ecash, Nostr protocol and Signal protocol.

Keychat is inspired by the postal system — stamps, post offices, letters.

Keychat uses Bitcoin ecash as stamps and Nostr relays as post offices.

Senders send messages stamped with Bitcoin ecash to Nostr relays. The Nostr relays collect the Bitcoin ecash, then deliver messages to receivers.

Unlike the centralized postal system, Keychat can use multiple Bitcoin ecash issuers and Nostr relays, each maintained by distinct operators.

Keychat uses Signal protocol to ensure message encryption security and meta-data privacy.

The content of the letter can be exposed easily by opening the envelope. Keychat messages are end-to-end encrypted via Signal protocol, with a unique encryption key generated for each message. Only the sender and receiver can decrypt the message.

The addresses of both parties on the envelope can be tracked. In theory, this problem is solved if they change addresses daily. So Keychat reuses Signal protocol to update sending and receiving addresses for nearly every message.

Like the postal system, Keychat requires no registration. Users just generate Nostr keys as ID.