BitcoinNews on Nostr: NUNCHUK ON COLDCARD VULNERABILITY Some Nunchuk platform keys were generated with a ...
NUNCHUK ON COLDCARD VULNERABILITY
Some Nunchuk platform keys were generated with a Coldcard Mk4, but the company says those keys are never used directly.
Instead, it derives separate keys through custom logic, making them less susceptible to lookup-table attacks based on compromised Coldcard seeds.
Nunchuk adds that, given enough time, it assumes attackers could eventually include those derived keys as well.
Published at
2026-08-01 05:08:11 CESTEvent JSON
{
"id": "68451ee4c47d569314cdcec7f86fed8440a8f6dbb9bd912f214ca6ab2c1d41f3",
"pubkey": "2774d83c8f9789c583414292b1192c4345db7ff0d551ea32efa2958f4192f6e5",
"created_at": 1785553691,
"kind": 1,
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"content": "NUNCHUK ON COLDCARD VULNERABILITY \n\nSome Nunchuk platform keys were generated with a Coldcard Mk4, but the company says those keys are never used directly. \n\nInstead, it derives separate keys through custom logic, making them less susceptible to lookup-table attacks based on compromised Coldcard seeds. \n\nNunchuk adds that, given enough time, it assumes attackers could eventually include those derived keys as well.\n\nhttps://image.nostr.build/4cdc47881d9a75bca88c20aa36731ae5aa701362e5a11e62d4ce9dbb242c3619.jpg",
"sig": "b6b47e4a814344476f9df1eae9efeeee75df616268293fdfde2fec4cb654eafba78dad64bea1c22729cc61c63ce92367cd46323321e088189dab69dfa5201c13"
}
