diff options
Diffstat (limited to 'src/cz/crcs/ectester/reader/test/CardEdgeCasesSuite.java')
| -rw-r--r-- | src/cz/crcs/ectester/reader/test/CardEdgeCasesSuite.java | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/cz/crcs/ectester/reader/test/CardEdgeCasesSuite.java b/src/cz/crcs/ectester/reader/test/CardEdgeCasesSuite.java index cc0f8d3..cebbc36 100644 --- a/src/cz/crcs/ectester/reader/test/CardEdgeCasesSuite.java +++ b/src/cz/crcs/ectester/reader/test/CardEdgeCasesSuite.java @@ -161,14 +161,15 @@ public class CardEdgeCasesSuite extends CardTestSuite { byte[] pParam = curve.getParam(EC_Consts.PARAMETER_FP)[0]; BigInteger p = new BigInteger(1, pParam); byte[] wParam = ((Response.Export) export.getResponse()).getParameter(ECTesterApplet.KEYPAIR_LOCAL, EC_Consts.PARAMETER_W); + byte[] xValue = new byte[(wParam.length - 1) / 2]; byte[] yValue = new byte[(wParam.length - 1) / 2]; + System.arraycopy(wParam, 1, xValue, 0, xValue.length); System.arraycopy(wParam, (wParam.length / 2) + 1, yValue, 0, yValue.length); BigInteger y = new BigInteger(1, yValue); BigInteger negY = p.subtract(y); byte[] newY = ECUtil.toByteArray(negY, curve.getBits()); - System.arraycopy(newY, 0, wParam, (wParam.length / 2) + 1, newY.length); - EC_Params negYParams = makeParams(newY); + EC_Params negYParams = new EC_Params(EC_Consts.PARAMETER_W, new byte[][]{xValue, newY}); Test negYTest = ecdhTest(new Command.Set(this.card, ECTesterApplet.KEYPAIR_LOCAL, EC_Consts.CURVE_external, negYParams.getParams(), negYParams.flatten()), "ECDH with pubkey negated.", Result.ExpectedValue.FAILURE, Result.ExpectedValue.FAILURE); Test zeroS = ecdhTest(new Command.Transform(this.card, ECTesterApplet.KEYPAIR_REMOTE, EC_Consts.CURVE_external, EC_Consts.PARAMETER_S, EC_Consts.TRANSFORMATION_ZERO), "ECDH with S = 0.", Result.ExpectedValue.FAILURE, Result.ExpectedValue.FAILURE); |