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crypto/bn256/cloudflare: checks for nil pointers in Marshal functions (#19609)

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* Added checks for nil pointers in Marshal functions

* Set nil pointer to identity in GT before marshaling
This commit is contained in:
Antoine Rondelet 2019-05-25 22:57:07 +01:00 committed by Péter Szilágyi
parent 4b622b277e
commit 9efc1a847e
1 changed files with 9 additions and 0 deletions
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9
crypto/bn256/cloudflare/bn256.go
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@ -100,6 +100,10 @@ func (e *G1) Marshal() []byte {
// Each value is a 256-bit number. // Each value is a 256-bit number.
const numBytes = 256 / 8 const numBytes = 256 / 8
if e.p == nil {
e.p = &curvePoint{}
}
e.p.MakeAffine() e.p.MakeAffine()
ret := make([]byte, numBytes*2) ret := make([]byte, numBytes*2)
if e.p.IsInfinity() { if e.p.IsInfinity() {
@ -382,6 +386,11 @@ func (e *GT) Marshal() []byte {
// Each value is a 256-bit number. // Each value is a 256-bit number.
const numBytes = 256 / 8 const numBytes = 256 / 8
if e.p == nil {
e.p = &gfP12{}
e.p.SetOne()
}
ret := make([]byte, numBytes*12) ret := make([]byte, numBytes*12)
temp := &gfP{} temp := &gfP{}