SatsAndSports on Nostr: In the Cashu channels, I'm using a DiffieHellman shared secret to add a little more ...
In the Cashu channels, I'm using a DiffieHellman shared secret to add a little more privacy in places. For example, it's used to compute the channel_id in order to make it more difficult for third parties to guess what the channel_id would be between two parties.
But AI has helped me realize that both parties should immediately hash the shared_secret upon computing it. In practice, this probably doesn't help much, but it's nice to hide any algebraic structure any time it's possible
you might say I'm overthinking this 😀. But it's fun to give these tasks to AI and continue watching a movie on a Sunday night while it executes:
Published at
2026-02-08 23:17:54 UTCEvent JSON
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"pubkey": "12ee03d11684a125dd87be879c28190415be3f3b1eca6b4ed743bd74ffd880e6",
"created_at": 1770592674,
"kind": 1,
"tags": [
[
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"m image/png",
"dim 706x170",
"bh LGQm9ftQxu%2t7WBt7j[~qaeRjbH",
"blurhash LGQm9ftQxu%2t7WBt7j[~qaeRjbH",
"thumb https://image.nostr.build/thumb/827f1db985c32ab6c469f2a530d832bea63ccf40b08115c65c5797edf66d7257.png"
],
[
"imeta",
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"m image/png",
"dim 1202x247",
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"blurhash LESF;Lt4%1?H_3ofWBof~qofRjof",
"thumb https://image.nostr.build/thumb/554579a646f559682d996f4c3b1d7fb28bcdfd3dd37eecf79c82ce52279557c6.png"
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"content": "In the Cashu channels, I'm using a DiffieHellman shared secret to add a little more privacy in places. For example, it's used to compute the channel_id in order to make it more difficult for third parties to guess what the channel_id would be between two parties.\n\nBut AI has helped me realize that both parties should immediately hash the shared_secret upon computing it. In practice, this probably doesn't help much, but it's nice to hide any algebraic structure any time it's possible\n\nhttps://image.nostr.build/827f1db985c32ab6c469f2a530d832bea63ccf40b08115c65c5797edf66d7257.png\n\nyou might say I'm overthinking this 😀. But it's fun to give these tasks to AI and continue watching a movie on a Sunday night while it executes:\n\nhttps://image.nostr.build/554579a646f559682d996f4c3b1d7fb28bcdfd3dd37eecf79c82ce52279557c6.png",
"sig": "237fed941ea3e45e559b3e9a11836aa685b336da128528a49da76111d67ae00fd5b23902ba648e678da4657f39d976a1bad3c9043e919c13875bd43d28ec6d57"
}
