From c43f275ac1aca8af3010dd4d94efa1511ca18f42 Mon Sep 17 00:00:00 2001 From: Peter Dettman Date: Tue, 7 Jul 2020 19:17:41 +0700 Subject: Fermat inversion for all custom curves - also customized random FE gen --- crypto/src/math/ec/custom/sec/SecP128R1Curve.cs | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'crypto/src/math/ec/custom/sec/SecP128R1Curve.cs') diff --git a/crypto/src/math/ec/custom/sec/SecP128R1Curve.cs b/crypto/src/math/ec/custom/sec/SecP128R1Curve.cs index e92aca75b..b4a150ca0 100644 --- a/crypto/src/math/ec/custom/sec/SecP128R1Curve.cs +++ b/crypto/src/math/ec/custom/sec/SecP128R1Curve.cs @@ -1,6 +1,7 @@ using System; using Org.BouncyCastle.Math.Raw; +using Org.BouncyCastle.Security; using Org.BouncyCastle.Utilities.Encoders; namespace Org.BouncyCastle.Math.EC.Custom.Sec @@ -93,6 +94,20 @@ namespace Org.BouncyCastle.Math.EC.Custom.Sec return new SecP128R1LookupTable(this, table, len); } + public override ECFieldElement RandomFieldElement(SecureRandom r) + { + uint[] x = Nat128.Create(); + SecP128R1Field.Random(r, x); + return new SecP128R1FieldElement(x); + } + + public override ECFieldElement RandomFieldElementMult(SecureRandom r) + { + uint[] x = Nat128.Create(); + SecP128R1Field.RandomMult(r, x); + return new SecP128R1FieldElement(x); + } + private class SecP128R1LookupTable : AbstractECLookupTable { -- cgit 1.4.1