calle 👁️⚡👁️ on Nostr: # How ecash is minted To use Cashu, a user Alice first needs to acquire ecash tokens. ...
# How ecash is minted
To use Cashu, a user Alice first needs to acquire ecash tokens. For that, Alice's wallet has to do two things: First, Alice asks the mint for a Lightning invoice and pays it using any other Bitcoin Lightning wallet. Second, when the invoice is paid, Alice generates a secret x and blinds it (i.e. encrypts it) and sends it to the mint. The mint then signs this blinded secret which we call a blind signature C'. The mint then sends the blind signature back to Alice and her wallet unblinds (i.e. decrypts) it to obtain a signature C on the secret x which the mint has both never seen. The tuple (x, C) is an ecash token and can be sent around to other users as a form of untraceable money.
[extracted from the Cashu PoL scheme document]
Published at
2024-01-15 22:26:06Event JSON
{
"id": "378e442e961c08a659a3483c862c1d841be0392d8dab53424487d09fe4384ceb",
"pubkey": "50d94fc2d8580c682b071a542f8b1e31a200b0508bab95a33bef0855df281d63",
"created_at": 1705357566,
"kind": 1,
"tags": [],
"content": "# How ecash is minted\n\nTo use Cashu, a user Alice first needs to acquire ecash tokens. For that, Alice's wallet has to do two things: First, Alice asks the mint for a Lightning invoice and pays it using any other Bitcoin Lightning wallet. Second, when the invoice is paid, Alice generates a secret x and blinds it (i.e. encrypts it) and sends it to the mint. The mint then signs this blinded secret which we call a blind signature C'. The mint then sends the blind signature back to Alice and her wallet unblinds (i.e. decrypts) it to obtain a signature C on the secret x which the mint has both never seen. The tuple (x, C) is an ecash token and can be sent around to other users as a form of untraceable money.\n\n[extracted from the Cashu PoL scheme document]",
"sig": "76a81743519bdfe3ef161f3c579d9936eabcfe984f792a2241629f14bf3c8de737a6252fe12c89922b6ef5e7722a8e037165c3be9c3290e68e66bb951bfb74aa"
}
