diff options
Diffstat (limited to 'crypto/src/math/ec/rfc8032/Scalar25519.cs')
| -rw-r--r-- | crypto/src/math/ec/rfc8032/Scalar25519.cs | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/crypto/src/math/ec/rfc8032/Scalar25519.cs b/crypto/src/math/ec/rfc8032/Scalar25519.cs index 67eee6155..4fb2fd2da 100644 --- a/crypto/src/math/ec/rfc8032/Scalar25519.cs +++ b/crypto/src/math/ec/rfc8032/Scalar25519.cs @@ -606,6 +606,7 @@ namespace Org.BouncyCastle.Math.EC.Rfc8032 Span<uint> Nu = stackalloc uint[16]; LSq.CopyTo(Nu); Span<uint> Nv = stackalloc uint[16]; Nat256.Square(k, Nv); ++Nv[0]; Span<uint> p = stackalloc uint[16]; Nat256.Mul(L, k, p); + Span<uint> t = stackalloc uint[16]; Span<uint> u0 = stackalloc uint[4]; u0.CopyFrom(L); Span<uint> u1 = stackalloc uint[4]; Span<uint> v0 = stackalloc uint[4]; v0.CopyFrom(k); @@ -622,12 +623,12 @@ namespace Org.BouncyCastle.Math.EC.Rfc8032 if ((int)p[last] < 0) { - ScalarUtilities.AddShifted_NP(last, s, Nu, Nv, p); + ScalarUtilities.AddShifted_NP(last, s, Nu, Nv, p, t); ScalarUtilities.AddShifted_UV(last: 3, s, u0, u1, v0, v1); } else { - ScalarUtilities.SubShifted_NP(last, s, Nu, Nv, p); + ScalarUtilities.SubShifted_NP(last, s, Nu, Nv, p, t); ScalarUtilities.SubShifted_UV(last: 3, s, u0, u1, v0, v1); } @@ -658,6 +659,7 @@ namespace Org.BouncyCastle.Math.EC.Rfc8032 uint[] Nu = new uint[16]; Array.Copy(LSq, Nu, 16); uint[] Nv = new uint[16]; Nat256.Square(k, Nv); ++Nv[0]; uint[] p = new uint[16]; Nat256.Mul(L, k, p); + uint[] t = new uint[16]; uint[] u0 = new uint[4]; Array.Copy(L, u0, 4); uint[] u1 = new uint[4]; uint[] v0 = new uint[4]; Array.Copy(k, v0, 4); @@ -674,12 +676,12 @@ namespace Org.BouncyCastle.Math.EC.Rfc8032 if ((int)p[last] < 0) { - ScalarUtilities.AddShifted_NP(last, s, Nu, Nv, p); + ScalarUtilities.AddShifted_NP(last, s, Nu, Nv, p, t); ScalarUtilities.AddShifted_UV(last: 3, s, u0, u1, v0, v1); } else { - ScalarUtilities.SubShifted_NP(last, s, Nu, Nv, p); + ScalarUtilities.SubShifted_NP(last, s, Nu, Nv, p, t); ScalarUtilities.SubShifted_UV(last: 3, s, u0, u1, v0, v1); } |