func Encode(keys *bitecdsa.PrivateKey) (string, error) {
var extended bytes.Buffer
extended.WriteByte(byte(0x80))
extended.Write(keys.D.Bytes())
sha1, sha2 := sha256.New(), sha256.New()
sha1.Write(extended.Bytes())
sha2.Write(sha1.Sum(nil))
checksum := sha2.Sum(nil)[:4]
extended.Write(checksum)
encoded, err := base58.Encode(extended.Bytes())
if err != nil {
return "", err
}
return encoded, nil
}
func New(addressVersion, stream uint64, eighteenByteRipe bool) (*address, error) {
var err error
addr := new(address)
addr.SigningKey, err = bitecdsa.GenerateKey(bitelliptic.S256(), rand.Reader)
if err != nil {
return nil, errors.New("address.New: Error generating ecdsa signing keys")
}
var ripe []byte
for {
addr.EncryptionKey, err = bitecdsa.GenerateKey(bitelliptic.S256(), rand.Reader)
if err != nil {
return nil, errors.New("address.New: Error generating ecdsa encryption keys")
}
var keyMerge bytes.Buffer
keyMerge.Write(addr.SigningKey.PublicKey.X.Bytes())
keyMerge.Write(addr.SigningKey.PublicKey.Y.Bytes())
keyMerge.Write(addr.EncryptionKey.PublicKey.X.Bytes())
keyMerge.Write(addr.EncryptionKey.PublicKey.Y.Bytes())
sha := sha512.New()
sha.Write(keyMerge.Bytes())
ripemd := ripemd160.New()
ripemd.Write(sha.Sum(nil))
ripe = ripemd.Sum(nil)
if eighteenByteRipe {
if ripe[0] == 0x00 && ripe[1] == 0x00 {
ripe = ripe[2:]
break
}
} else {
if ripe[0] == 0x00 {
ripe = ripe[1:]
break
}
}
}
var bmAddr bytes.Buffer
bmAddr.Write(varint.Encode(addressVersion))
bmAddr.Write(varint.Encode(stream))
bmAddr.Write(ripe)
sha1, sha2 := sha512.New(), sha512.New()
sha1.Write(bmAddr.Bytes())
sha2.Write(sha1.Sum(nil))
checksum := sha2.Sum(nil)[:4]
bmAddr.Write(checksum)
encoded, err := base58.Encode(bmAddr.Bytes())
if err != nil {
return nil, err
}
addr.Identifier = "BM-" + encoded
return addr, nil
}
