neoneo-go/pkg/encoding/address/address.go
2019-12-25 15:50:52 +03:00

32 lines
879 B
Go

package address
import (
"errors"
"github.com/CityOfZion/neo-go/pkg/encoding/base58"
"github.com/CityOfZion/neo-go/pkg/util"
)
// Prefix is the byte used to prepend to addresses when encoding them, it can
// be changed and defaults to 23 (0x17), the standard NEO prefix.
var Prefix = byte(0x17)
// EncodeUint160 returns the "NEO address" from the given Uint160.
func EncodeUint160(u util.Uint160) string {
// Dont forget to prepend the Address version 0x17 (23) A
b := append([]byte{Prefix}, u.BytesBE()...)
return base58.CheckEncode(b)
}
// DecodeUint160 attempts to decode the given NEO address string
// into an Uint160.
func DecodeUint160(s string) (u util.Uint160, err error) {
b, err := base58.CheckDecode(s)
if err != nil {
return u, err
}
if b[0] != Prefix {
return u, errors.New("wrong address prefix")
}
return util.Uint160DecodeBytesBE(b[1:21])
}