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Board Development & Technical Discussion
Re: How to define which coordinate is negative?
by
ajeev
on 23/07/2022, 12:26:38 UTC
all points with lowest Y-coordinate are odd and with highest are even. and if we could calculate exact position of point in this group there could be a correlation
to secp256k1 subgroup S={G,2G,3G,...,(N-1)G}.
but secp256k1 P-N is 432420386565659656852420866390673177326 more than 2^128 since not all values of P can become X-coordinate.

The last part effectively rules out dividing the Y by 2 and discarding the fractional part, to attempt to discern the subranges of X (e.g. between 0,2^64-1 and 2^64,2^128-1)

hi is there any way to find private key range using public key

pk1 = '022f8bde4d1a07209355b4a7250a5c5128e88b84bddc619ab7cba8d569b240efe4'

pk2 = '02C6047F9441ED7D6D3045406E95C07CD85C778E4B8CEF3CA7ABAC09B95C709EE5'

pk1<=pk2
false


any python code useful for me
im getting below error

typeerror ' ' not supported between instances of 'point' and 'point'

Are you sure you are using this code smapl, because this error message looks funny - there are no point types in this code.



comparing two public key im trying to find which one big or small

is there any alternative way to do this ,already pm you my code

please help!