--- Day changed Fri Jun 30 2017
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10:13 < SopaXorzTaker> How are public keys decompressed?
10:13 < SopaXorzTaker> (or are they?)
10:14 < SopaXorzTaker> I mean, ECDSA only uses K.x
10:24 < sipa> solve the equation
10:25 < sipa> y^2 = x^3 + 7
10:25 < sipa> so y is sqrt(x^3 + 7)
10:26 < sipa> also, ECDSA does not need decompression
10:26 < sipa> just recompute K and compare the x coordinate
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