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core/vm: Fixed error in bn256Add

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Martin Holst Swende 2017-06-20 23:03:02 +02:00 committed by Péter Szilágyi
parent c3711a1f2c
commit c5b2abc83d
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GPG key ID: E9AE538CEDF8293D
1 changed files with 4 additions and 3 deletions
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7
core/vm/contracts.go
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@ -231,11 +231,11 @@ func (c *bn256Add) Run(in []byte) ([]byte, error) {
return nil, errInvalidCurvePoint
}
y, onCurve := new(bn256.G1).Unmarshal(in[:64])
y, onCurve := new(bn256.G1).Unmarshal(in[64:128])
if !onCurve {
return nil, errNotOnCurve
}
gx, gy, _, _ = x.CurvePoints()
gx, gy, _, _ = y.CurvePoints()
if gx.Cmp(bn256.P) >= 0 || gy.Cmp(bn256.P) >= 0 {
return nil, errInvalidCurvePoint
}
@ -278,7 +278,8 @@ type pairing struct{}
// This method does not require any overflow checking as the input size gas costs
// required for anything significant is so high it's impossible to pay for.
func (c *pairing) RequiredGas(input []byte) uint64 {
return 0 // TODO
//return 0 // TODO
return uint64(60000*len(input) + 40000)
}
const pairSize = 192