neoneo-go/pkg/encoding/address/address.go
Elizaveta Chichindaeva 28908aa3cf [#2442] English Check
Signed-off-by: Elizaveta Chichindaeva <elizaveta@nspcc.ru>
2022-05-04 19:48:27 +03:00

39 lines
1 KiB
Go

package address
import (
"errors"
"github.com/nspcc-dev/neo-go/pkg/encoding/base58"
"github.com/nspcc-dev/neo-go/pkg/util"
)
const (
// NEO2Prefix is the first byte of an address for NEO2.
NEO2Prefix byte = 0x17
// NEO3Prefix is the first byte of an address for NEO3.
NEO3Prefix byte = 0x35
)
// Prefix is the byte used to prepend to addresses when encoding them, it can
// be changed and defaults to 53 (0x35), the standard NEO prefix.
var Prefix = NEO3Prefix
// Uint160ToString returns the "NEO address" from the given Uint160.
func Uint160ToString(u util.Uint160) string {
// Don't forget to prepend the Address version 0x17 (23) A
b := append([]byte{Prefix}, u.BytesBE()...)
return base58.CheckEncode(b)
}
// StringToUint160 attempts to decode the given NEO address string
// into a Uint160.
func StringToUint160(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])
}