func testKeyGeneration(t *testing.T, c *bitelliptic.BitCurve, tag string) {
priv, err := GenerateKey(c, rand.Reader)
if err != nil {
t.Errorf("%s: error: %s", tag, err)
return
}
if !c.IsOnCurve(priv.PublicKey.X, priv.PublicKey.Y) {
t.Errorf("%s: public key invalid: %s", tag, err)
}
}
// GenerateKey generates a public&private key pair.
func GenerateKey(c *bitelliptic.BitCurve, rand io.Reader) (priv *PrivateKey, err error) {
k, err := randFieldElement(c, rand)
if err != nil {
return
}
priv = new(PrivateKey)
priv.PublicKey.BitCurve = c
priv.D = k
priv.PublicKey.X, priv.PublicKey.Y = c.ScalarBaseMult(k.Bytes())
return
}