Esempio n. 1
0
func NewAddrFromString(hs string) (a *BtcAddr, e error) {
	dec := Decodeb58(hs)
	if dec == nil {
		e = errors.New("Cannot decode b58 string *" + hs + "*")
		return
	}
	if len(dec) < 25 {
		e = errors.New("Address too short " + hex.EncodeToString(dec))
		return
	}
	if len(dec) == 25 {
		sh := crypto.Sha2Sum(dec[0:21])
		if !bytes.Equal(sh[:4], dec[21:25]) {
			e = errors.New("Address Checksum error")
		} else {
			a = new(BtcAddr)
			a.Version = dec[0]
			copy(a.Hash160[:], dec[1:21])
			a.Checksum = make([]byte, 4)
			copy(a.Checksum, dec[21:25])
			a.Enc58str = hs
		}
	} else {
		// Stealth Addr
	}
	return
}
Esempio n. 2
0
// Base58 encoded address
func (a *BtcAddr) String() string {
	if a.Enc58str == "" {
		var ad [25]byte
		ad[0] = a.Version
		copy(ad[1:21], a.Hash160[:])
		if a.Checksum == nil {
			sh := crypto.Sha2Sum(ad[0:21])
			a.Checksum = make([]byte, 4)
			copy(a.Checksum, sh[:4])
		}
		copy(ad[21:25], a.Checksum[:])
		a.Enc58str = Encodeb58(ad[:])
	}
	return a.Enc58str
}