// Verifies consistency of a serialized HD address
func ByteCheck(dbin []byte) error {
// check proper length
if len(dbin) != 82 {
return errors.New("ByteCheck: Unexpected length")
}
// check for correct Public or Private Prefix
vb := binary.BigEndian.Uint32(dbin[:4])
if vb != Public && vb != Private && vb != TestPublic && vb != TestPrivate {
return errors.New("ByteCheck: Unexpected Prefix")
}
// if Public, check x coord is on curve
if vb == Public || vb == TestPublic {
var xy secp256k1.XY
xy.ParsePubkey(dbin[45:78])
if !xy.IsValid() {
return errors.New("ByteCheck: Invalid public key")
}
}
return nil
}
