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Make sure that public key always uses 64 bytes

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This commit is contained in:
obscuren 2014-06-23 11:23:51 +02:00
parent bb1641e4ec
commit 842d52db7b
1 changed files with 10 additions and 10 deletions
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20
ethchain/transaction.go
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@ -89,11 +89,12 @@ func (tx *Transaction) Signature(key []byte) []byte {
func (tx *Transaction) PublicKey() []byte {
hash := tx.Hash()
// If we don't make a copy we will overwrite the existing underlying array
dst := make([]byte, len(tx.r))
copy(dst, tx.r)
r := make([]byte, 32-len(tx.r))
s := make([]byte, 32-len(tx.s))
r = append(r, ethutil.CopyBytes(tx.r)...)
s = append(s, ethutil.CopyBytes(tx.s)...)
sig := append(dst, tx.s...)
sig := append(r, s...)
sig = append(sig, tx.v-27)
pubkey, _ := secp256k1.RecoverPubkey(hash, sig)
@ -127,6 +128,8 @@ func (tx *Transaction) Sign(privk []byte) error {
func (tx *Transaction) RlpData() interface{} {
data := []interface{}{tx.Nonce, tx.GasPrice, tx.Gas, tx.Recipient, tx.Value, tx.Data}
// TODO Remove prefixing zero's
return append(data, tx.v, tx.r, tx.s)
}
@ -151,10 +154,8 @@ func (tx *Transaction) RlpValueDecode(decoder *ethutil.Value) {
tx.Data = decoder.Get(5).Bytes()
tx.v = byte(decoder.Get(6).Uint())
r := make([]byte, 32-len(decoder.Get(7).Bytes()))
s := make([]byte, 32-len(decoder.Get(8).Bytes()))
tx.r = append(r, decoder.Get(7).Bytes()...)
tx.s = append(s, decoder.Get(8).Bytes()...)
tx.r = decoder.Get(7).Bytes()
tx.s = decoder.Get(8).Bytes()
if IsContractAddr(tx.Recipient) {
tx.contractCreation = true
@ -178,8 +179,7 @@ func (tx *Transaction) String() string {
`,
tx.Hash(),
len(tx.Recipient) == 0,
//tx.Sender(),
nil,
tx.Sender(),
tx.Recipient,
tx.Nonce,
tx.GasPrice,