1 files changed, 0 insertions, 156 deletions
diff --git a/core/src/main/java/org/bouncycastle/math/ec/custom/sec/SecP521R1Field.java b/core/src/main/java/org/bouncycastle/math/ec/custom/sec/SecP521R1Field.java
deleted file mode 100644
index 00f10667..00000000
--- a/core/src/main/java/org/bouncycastle/math/ec/custom/sec/SecP521R1Field.java
+++ /dev/null
@@ -1,156 +0,0 @@
-package org.bouncycastle.math.ec.custom.sec;
-
-import java.math.BigInteger;
-
-import org.bouncycastle.math.raw.Nat;
-import org.bouncycastle.math.raw.Nat512;
-
-public class SecP521R1Field
-{
-    // 2^521 - 1
-    static final int[] P = new int[]{ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
-        0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x1FF };
-    private static final int P16 = 0x1FF;
-
-    public static void add(int[] x, int[] y, int[] z)
-    {
-        int c = Nat.add(16, x, y, z) + x[16] + y[16];
-        if (c > P16 || (c == P16 && Nat.eq(16, z, P)))
-        {
-            c += Nat.inc(16, z);
-            c &= P16;
-        }
-        z[16] = c;
-    }
-
-    public static void addOne(int[] x, int[] z)
-    {
-        int c = Nat.inc(16, x, z) + x[16];
-        if (c > P16 || (c == P16 && Nat.eq(16, z, P)))
-        {
-            c += Nat.inc(16, z);
-            c &= P16;
-        }
-        z[16] = c;
-    }
-
-    public static int[] fromBigInteger(BigInteger x)
-    {
-        int[] z = Nat.fromBigInteger(521, x);
-        if (Nat.eq(17, z, P))
-        {
-            Nat.zero(17, z);
-        }
-        return z;
-    }
-
-    public static void half(int[] x, int[] z)
-    {
-        int x16 = x[16];
-        int c = Nat.shiftDownBit(16, x, x16, z);
-        z[16] = (x16 >>> 1) | (c >>> 23);
-    }
-
-    public static void multiply(int[] x, int[] y, int[] z)
-    {
-        int[] tt = Nat.create(33);
-        implMultiply(x, y, tt);
-        reduce(tt, z);
-    }
-
-    public static void negate(int[] x, int[] z)
-    {
-        if (Nat.isZero(17, x))
-        {
-            Nat.zero(17, z);
-        }
-        else
-        {
-            Nat.sub(17, P, x, z);
-        }
-    }
-
-    public static void reduce(int[] xx, int[] z)
-    {
-//        assert xx[32] >>> 18 == 0;
-
-        int xx32 = xx[32];
-        int c = Nat.shiftDownBits(16, xx, 16, 9, xx32, z, 0) >>> 23;
-        c += xx32 >>> 9;
-        c += Nat.addTo(16, xx, z);
-        if (c > P16 || (c == P16 && Nat.eq(16, z, P)))
-        {
-            c += Nat.inc(16, z);
-            c &= P16;
-        }
-        z[16] = c;
-    }
-
-    public static void reduce23(int[] z)
-    {
-        int z16 = z[16];
-        int c = Nat.addWordTo(16, z16 >>> 9, z) + (z16 & P16);
-        if (c > P16 || (c == P16 && Nat.eq(16, z, P)))
-        {
-            c += Nat.inc(16, z);
-            c &= P16;
-        }
-        z[16] = c;
-    }
-
-    public static void square(int[] x, int[] z)
-    {
-        int[] tt = Nat.create(33);
-        implSquare(x, tt);
-        reduce(tt, z);
-    }
-
-    public static void squareN(int[] x, int n, int[] z)
-    {
-//        assert n > 0;
-
-        int[] tt = Nat.create(33);
-        implSquare(x, tt);
-        reduce(tt, z);
-
-        while (--n > 0)
-        {
-            implSquare(z, tt);
-            reduce(tt, z);
-        }
-    }
-
-    public static void subtract(int[] x, int[] y, int[] z)
-    {
-        int c = Nat.sub(16, x, y, z) + x[16] - y[16];
-        if (c < 0)
-        {
-            c += Nat.dec(16, z);
-            c &= P16;
-        }
-        z[16] = c;
-    }
-
-    public static void twice(int[] x, int[] z)
-    {
-        int x16 = x[16];
-        int c = Nat.shiftUpBit(16, x, x16 << 23, z) | (x16 << 1);
-        z[16] = c & P16;
-    }
-
-    protected static void implMultiply(int[] x, int[] y, int[] zz)
-    {
-        Nat512.mul(x, y, zz);
-
-        int x16 = x[16], y16 = y[16];
-        zz[32] = Nat.mul31BothAdd(16, x16, y, y16, x, zz, 16) + (x16 * y16);
-    }
-
-    protected static void implSquare(int[] x, int[] zz)
-    {
-        Nat512.square(x, zz);
-
-        int x16 = x[16];
-        zz[32] = Nat.mulWordAddTo(16, x16 << 1, x, 0, zz, 16) + (x16 * x16);
-    }
-}