// Generate a new stealth address
func new_stealth_address(prv_key []byte) {
sk, er := hex.DecodeString(*scankey)
if er != nil {
println(er.Error())
os.Exit(1)
}
if len(sk) != 33 || sk[0] != 2 && sk[0] != 3 {
println("scankey must be a compressed public key (33 bytes long)")
os.Exit(1)
}
if *prefix > 16 {
if *prefix > 24 {
fmt.Println("The stealth prefix cannot be bigger than 32", *prefix)
os.Exit(1)
}
fmt.Println("WARNING: You chose a prifix length of", *prefix)
fmt.Println("WARNING: Big prefixes endanger your anonymity.")
}
pub := btc.PublicFromPrivate(prv_key, true)
if pub == nil {
println("PublicFromPrivate error 2")
os.Exit(1)
}
sa := new(btc.StealthAddr)
sa.Version = btc.StealthAddressVersion(*testnet)
sa.Options = 0
copy(sa.ScanKey[:], sk)
sa.SpendKeys = make([][33]byte, 1)
copy(sa.SpendKeys[0][:], pub)
sa.Sigs = 1
sa.Prefix = make([]byte, 1+(byte(*prefix)+7)>>3)
if *prefix > 0 {
sa.Prefix[0] = byte(*prefix)
rand.Read(sa.Prefix[1:])
}
fmt.Println(sa.String())
}
