diff options
| author | Peter Dettman <peter.dettman@bouncycastle.org> | 2018-10-22 12:56:21 +0700 |
|---|---|---|
| committer | Peter Dettman <peter.dettman@bouncycastle.org> | 2018-10-22 12:56:21 +0700 |
| commit | fbc6fd1202d1861d78babb48a374850a15f875b3 (patch) | |
| tree | f3837f6b39c8e260ed685b9c5a7888f76260fb84 /crypto/src/math/ec/rfc8032/Ed25519.cs | |
| parent | Add GeneratePublicKey method for completeness (diff) | |
| download | BouncyCastle.NET-ed25519-fbc6fd1202d1861d78babb48a374850a15f875b3.tar.xz | |
Use Edwards internals for X25519/X448 public key calculations
Diffstat (limited to 'crypto/src/math/ec/rfc8032/Ed25519.cs')
| -rw-r--r-- | crypto/src/math/ec/rfc8032/Ed25519.cs | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/crypto/src/math/ec/rfc8032/Ed25519.cs b/crypto/src/math/ec/rfc8032/Ed25519.cs index b77853f30..6dc52a865 100644 --- a/crypto/src/math/ec/rfc8032/Ed25519.cs +++ b/crypto/src/math/ec/rfc8032/Ed25519.cs @@ -934,6 +934,17 @@ namespace Org.BouncyCastle.Math.EC.Rfc8032 EncodePoint(p, r, rOff); } + internal static void ScalarMultBaseYZ(byte[] k, int kOff, int[] y, int[] z) + { + byte[] n = new byte[ScalarBytes]; + PruneScalar(k, kOff, n); + + PointAccum p = new PointAccum(); + ScalarMultBase(n, p); + X25519Field.Copy(p.y, 0, y, 0); + X25519Field.Copy(p.z, 0, z, 0); + } + private static void ScalarMultStraussVar(uint[] nb, uint[] np, PointExt p, PointAccum r) { Precompute(); |