diff options
Diffstat (limited to 'crypto/src/math/ec/ECFieldElement.cs')
| -rw-r--r-- | crypto/src/math/ec/ECFieldElement.cs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/crypto/src/math/ec/ECFieldElement.cs b/crypto/src/math/ec/ECFieldElement.cs index 844bed649..4d4fb3e4d 100644 --- a/crypto/src/math/ec/ECFieldElement.cs +++ b/crypto/src/math/ec/ECFieldElement.cs @@ -604,6 +604,9 @@ namespace Org.BouncyCastle.Math.EC int k3, BigInteger x) { + if (x == null || x.SignValue < 0 || x.BitLength > m) + throw new ArgumentException("value invalid in F2m field element", "x"); + if ((k2 == 0) && (k3 == 0)) { this.representation = Tpb; |