GE..::..ToEvenY Method (Boolean%)
Keeps a group element as is if it has an even Y and otherwise negates it.
parity is set to 0 in the former case and to 1 in the latter case.
Requires that the coordinates of r are normalized.
Namespace:
SecretNET.Crypto.Secp256k1Assembly: SecretNET (in SecretNET.dll)