func (w *SCWallet) SignInputs(trans fct.ITransaction) (bool, error) {
data, err := trans.MarshalBinarySig() // Get the part of the transaction we sign
if err != nil {
return false, err
}
var numSigs int = 0
inputs := trans.GetInputs()
rcds := trans.GetRCDs()
for i, rcd := range rcds {
rcd1, ok := rcd.(*fct.RCD_1)
if ok {
pub := rcd1.GetPublicKey()
we := w.db.GetRaw([]byte(fct.W_ADDRESS_PUB_KEY), pub).(*WalletEntry)
if we != nil {
var pri [fct.SIGNATURE_LENGTH]byte
copy(pri[:], we.private[0])
bsig := ed25519.Sign(&pri, data)
sig := new(fct.Signature)
sig.SetSignature(bsig[:])
sigblk := new(fct.SignatureBlock)
sigblk.AddSignature(sig)
trans.SetSignatureBlock(i, sigblk)
numSigs += 1
}
}
}
return numSigs == len(inputs), nil
}
func (w *SCWallet) UpdateInput(trans fct.ITransaction, index int, address fct.IAddress, amount uint64) error {
we, adr, err := w.getWalletEntry([]byte(fct.W_RCD_ADDRESS_HASH), address)
if err != nil {
return err
}
in, err := trans.GetInput(index)
if err != nil {
return err
}
trans.GetRCDs()[index] = we.GetRCD() // The RCD must match the (possibly) new input
in.SetAddress(adr)
in.SetAmount(amount)
return nil
}
// Add the first transaction of a block. This transaction makes the
// payout to the servers, so it has no inputs. This transaction must
// be deterministic so that all servers will know and expect its output.
func (b *FBlock) AddCoinbase(trans fct.ITransaction) error {
b.BodyMR = nil
if len(b.Transactions) != 0 {
return fmt.Errorf("The coinbase transaction must be the first transaction")
}
if len(trans.GetInputs()) != 0 {
return fmt.Errorf("The coinbase transaction cannot have any inputs")
}
if len(trans.GetECOutputs()) != 0 {
return fmt.Errorf("The coinbase transaction cannot buy Entry Credits")
}
if len(trans.GetRCDs()) != 0 {
return fmt.Errorf("The coinbase transaction cannot have anyRCD blocks")
}
if len(trans.GetSignatureBlocks()) != 0 {
return fmt.Errorf("The coinbase transaction is not signed")
}
// TODO Add check here for the proper payouts.
b.Transactions = append(b.Transactions, trans)
return nil
}
func (w *SCWallet) SignInputs(trans fct.ITransaction) (bool, error) {
data, err := trans.MarshalBinarySig() // Get the part of the transaction we sign
if err != nil {
return false, err
}
var errMsg []byte
rcds := trans.GetRCDs()
for i, rcd := range rcds {
rcd1, ok := rcd.(*fct.RCD_1)
if ok {
pub := rcd1.GetPublicKey()
we, ok := w.db.GetRaw([]byte(fct.W_ADDRESS_PUB_KEY), pub).(*WalletEntry)
if ok {
var pri [fct.SIGNATURE_LENGTH]byte
copy(pri[:], we.private[0])
bsig := ed25519.Sign(&pri, data)
sig := new(fct.Signature)
sig.SetSignature(bsig[:])
sigblk := new(fct.SignatureBlock)
sigblk.AddSignature(sig)
trans.SetSignatureBlock(i, sigblk)
} else {
errMsg = append(errMsg,
[]byte("Do not have the private key for: "+
fct.ConvertFctAddressToUserStr(fct.NewAddress(pub))+"\n")...)
}
}
}
if errMsg != nil {
return false, fmt.Errorf("%s", string(errMsg))
}
return true, nil
}