Post #1273089

The marginal electricity cost per broken secp256k1 cryptographic key is about $59 for a 23-minute attack (500000×0.38≈191667 qubit-hours=7986=7986 qubit-days). This means that for bitcoin it could be 62 keys/day. Assuming that a quantum computer exists (which it doesn't, today). https://arxiv.org/pdf/2304.14344 https://arxiv.org/pdf/2304.14344