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| author | Antoine Rondelet <rondelet.antoine@gmail.com> | 2019-05-26 05:57:07 +0800 |
|---|---|---|
| committer | Péter Szilágyi <peterke@gmail.com> | 2019-05-26 05:57:07 +0800 |
| commit | 9efc1a847e53b63847f6f95e0857b1a6300786eb (patch) | |
| tree | 8725c38c0b7f2d215ed74efa760ef0f1958b1eb2 | |
| parent | 4b622b277ed2d708c2dffbb538adc64a13a06321 (diff) | |
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crypto/bn256/cloudflare: checks for nil pointers in Marshal functions (#19609)
* Added checks for nil pointers in Marshal functions
* Set nil pointer to identity in GT before marshaling
| -rw-r--r-- | crypto/bn256/cloudflare/bn256.go | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/crypto/bn256/cloudflare/bn256.go b/crypto/bn256/cloudflare/bn256.go index c6ea2d07e..38822a76b 100644 --- a/crypto/bn256/cloudflare/bn256.go +++ b/crypto/bn256/cloudflare/bn256.go @@ -100,6 +100,10 @@ func (e *G1) Marshal() []byte { // Each value is a 256-bit number. const numBytes = 256 / 8 + if e.p == nil { + e.p = &curvePoint{} + } + e.p.MakeAffine() ret := make([]byte, numBytes*2) if e.p.IsInfinity() { @@ -382,6 +386,11 @@ func (e *GT) Marshal() []byte { // Each value is a 256-bit number. const numBytes = 256 / 8 + if e.p == nil { + e.p = &gfP12{} + e.p.SetOne() + } + ret := make([]byte, numBytes*12) temp := &gfP{} |