Questions tagged [ecdh]
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Why P-521 public key X,Y some time is 65 bytes some time is 66 bytes
I use golang generate the P-521 public key.
source code look like that:
curve:=elliptic.P521()
priv, x, y, err := elliptic.GenerateKey(curve, rand.Reader)
xBytes:=x.Bytes()
yBytes:=y.bytes()
//len(xBytes) some time is 65 bytes ,some time is 66…
user9235725
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