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March 03, 2023, 11:40:12 PM |
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Hello,
In the context of presence of biased nonces, I've read in several places that if one doesn't have enough signatures to build a lattice of the required dimension, valid ECDSA signatures should be generated for this purpose.
However, I don't understand how this can help as one will generate "i=1..n" signatures with "Ki=ai+ bi*prvkey" using random (ai, bi) that doesn't provide any informaion about Ki.
Are there any hints for properly choosing (ai, bi) ?
The most obvious one is to have the same bias of Ki (difficult to achieve) but this is not enough, right ?
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