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rpcserver: Copy btcwallet fix for verifymessage RPC. #515

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merged 1 commit into from Oct 16, 2015
Merged

rpcserver: Copy btcwallet fix for verifymessage RPC. #515

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6 changes: 5 additions & 1 deletion rpcserver.go
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Expand Up @@ -3372,8 +3372,12 @@ func handleVerifyMessage(s *rpcServer, cmd interface{}, closeChan <-chan struct{

// Validate the signature - this just shows that it was valid at all.
// we will compare it with the key next.
var buf bytes.Buffer
wire.WriteVarString(&buf, 0, "Bitcoin Signed Message:\n")
wire.WriteVarString(&buf, 0, c.Message)
expectedMessageHash := wire.DoubleSha256(buf.Bytes())
pk, wasCompressed, err := btcec.RecoverCompact(btcec.S256(), sig,
wire.DoubleSha256([]byte("Bitcoin Signed Message:\n"+c.Message)))
expectedMessageHash)
if err != nil {
// Mirror Bitcoin Core behavior, which treats error in
// RecoverCompact as invalid signature.
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