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types: bugfix invalid V derivation on tx json unmarshal (#3594)

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This commit is contained in:
bas-vk 2017-01-20 23:32:16 +01:00 committed by Felix Lange
parent 946db8ba65
commit 0126d01435
2 changed files with 3 additions and 2 deletions
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3
core/types/transaction.go
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@ -198,7 +198,8 @@ func (tx *Transaction) UnmarshalJSON(input []byte) error {
var V byte
if isProtectedV((*big.Int)(dec.V)) {
V = byte((new(big.Int).Sub((*big.Int)(dec.V), deriveChainId((*big.Int)(dec.V))).Uint64()) - 35)
chainId := deriveChainId((*big.Int)(dec.V)).Uint64()
V = byte(dec.V.ToInt().Uint64() - 35 - 2*chainId)
} else {
V = byte(((*big.Int)(dec.V)).Uint64() - 27)
}

2
core/types/transaction_signing.go
View File

@ -160,7 +160,7 @@ func (s EIP155Signer) PublicKey(tx *Transaction) ([]byte, error) {
// needs to be in the [R || S || V] format where V is 0 or 1.
func (s EIP155Signer) WithSignature(tx *Transaction, sig []byte) (*Transaction, error) {
if len(sig) != 65 {
panic(fmt.Sprintf("wrong size for snature: got %d, want 65", len(sig)))
panic(fmt.Sprintf("wrong size for signature: got %d, want 65", len(sig)))
}
cpy := &Transaction{data: tx.data}