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Title: 🖤 Post by: digaran on June 24, 2023, 08:52:22 PM 🖤
Title: Re: Y coordinates, their differences and mathematical relations Post by: o_e_l_e_o on June 25, 2023, 06:55:46 AM Their difference is the same as F = This is the finite field over which secp256k1 is defined. It is more commonly given the symbol p. Any calculations done in secp256k1 need to be done modulo p.fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f So to invert a y coordinate over the x axis like this, you simply do -y = p-y This explains why the difference between your two y coordinates is p. |