You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
50 lines
1.5 KiB
50 lines
1.5 KiB
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR) |
|
#pragma warning disable |
|
using System; |
|
using System.Diagnostics; |
|
|
|
namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Math.Raw |
|
{ |
|
internal abstract class Nat512 |
|
{ |
|
public static void Mul(uint[] x, uint[] y, uint[] zz) |
|
{ |
|
Nat256.Mul(x, y, zz); |
|
Nat256.Mul(x, 8, y, 8, zz, 16); |
|
|
|
uint c24 = Nat256.AddToEachOther(zz, 8, zz, 16); |
|
uint c16 = c24 + Nat256.AddTo(zz, 0, zz, 8, 0); |
|
c24 += Nat256.AddTo(zz, 24, zz, 16, c16); |
|
|
|
uint[] dx = Nat256.Create(), dy = Nat256.Create(); |
|
bool neg = Nat256.Diff(x, 8, x, 0, dx, 0) != Nat256.Diff(y, 8, y, 0, dy, 0); |
|
|
|
uint[] tt = Nat256.CreateExt(); |
|
Nat256.Mul(dx, dy, tt); |
|
|
|
c24 += neg ? Nat.AddTo(16, tt, 0, zz, 8) : (uint)Nat.SubFrom(16, tt, 0, zz, 8); |
|
Nat.AddWordAt(32, c24, zz, 24); |
|
} |
|
|
|
public static void Square(uint[] x, uint[] zz) |
|
{ |
|
Nat256.Square(x, zz); |
|
Nat256.Square(x, 8, zz, 16); |
|
|
|
uint c24 = Nat256.AddToEachOther(zz, 8, zz, 16); |
|
uint c16 = c24 + Nat256.AddTo(zz, 0, zz, 8, 0); |
|
c24 += Nat256.AddTo(zz, 24, zz, 16, c16); |
|
|
|
uint[] dx = Nat256.Create(); |
|
Nat256.Diff(x, 8, x, 0, dx, 0); |
|
|
|
uint[] m = Nat256.CreateExt(); |
|
Nat256.Square(dx, m); |
|
|
|
c24 += (uint)Nat.SubFrom(16, m, 0, zz, 8); |
|
Nat.AddWordAt(32, c24, zz, 24); |
|
} |
|
} |
|
} |
|
#pragma warning restore |
|
#endif
|
|
|