diff options
Diffstat (limited to 'src/crypto/elliptic/p224.go')
| -rw-r--r-- | src/crypto/elliptic/p224.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/crypto/elliptic/p224.go b/src/crypto/elliptic/p224.go index 8c76021464..ff5c834452 100644 --- a/src/crypto/elliptic/p224.go +++ b/src/crypto/elliptic/p224.go @@ -48,6 +48,11 @@ func (curve p224Curve) Params() *CurveParams { } func (curve p224Curve) IsOnCurve(bigX, bigY *big.Int) bool { + if bigX.Sign() < 0 || bigX.Cmp(curve.P) >= 0 || + bigY.Sign() < 0 || bigY.Cmp(curve.P) >= 0 { + return false + } + var x, y p224FieldElement p224FromBig(&x, bigX) p224FromBig(&y, bigY) |