Nostr

maven leo 1y ago

Is cashu the protocol in all ecash?

#asknostr

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Discussion

Crusty 👨‍💻 1y ago

Cashu is bitcoin ecash

maven leo 1y ago

So, the token is a cashu token

What's the protocol?

Crusty 👨‍💻 1y ago

I would not call it a token. Cashu is the protocol.

So cashu is chaumian ecash protocol on bitcoin.

It works like having receipt of bitcoins that you store at a custodian. You can either put in more bitcoin and mint more ecash, or melt your ecash and get back your bitcoin. But this is done in a private way.

maven leo 1y ago

Cool, thanks 👍

maven leo 1y ago

This npub.cash thing is cashu protocol?

. 1y ago

Cashu is an ecash protocol. The ecash can represent anything. There are USD cashu mints for example.

Crusty 👨‍💻 1y ago

I think the USD cashu is solved also with btc. It is not connected to the legacy system on that regard, or there is also such?

waxwing 1y ago

No, there are several variants of ecash, most based on blinded Schnorr signatures. Cashu uses a different algo, based a kind of blinded Diffie-Hellman, similar to that used in privacypass.

Fedimint uses blind signatures plus federated mints.

Rand 1y ago

(*_*)

Big Barry Bitcoin 1y ago

Did not know that 🤯🤗