// Calculate the stealth difference
func StealthPub(pub, priv []byte) (res []byte) {
res = make([]byte, 33)
if !secp256k1.Multiply(pub, priv, res) {
res = nil
}
return
}
// Calculate the stealth difference
func StealthDH(pub, priv []byte) []byte {
var res [33]byte
if !secp256k1.Multiply(pub, priv, res[:]) {
return nil
}
s := sha256.New()
s.Write(res[:])
return s.Sum(nil)
}