1 files changed, 0 insertions, 187 deletions
diff --git a/bcprov/src/main/java/org/bouncycastle/math/ec/custom/sec/SecP160R1Field.java b/bcprov/src/main/java/org/bouncycastle/math/ec/custom/sec/SecP160R1Field.java
deleted file mode 100644
index 91ba0e58..00000000
--- a/bcprov/src/main/java/org/bouncycastle/math/ec/custom/sec/SecP160R1Field.java
+++ /dev/null
@@ -1,187 +0,0 @@
-package org.bouncycastle.math.ec.custom.sec;
-
-import java.math.BigInteger;
-
-import org.bouncycastle.math.raw.Nat;
-import org.bouncycastle.math.raw.Nat160;
-
-public class SecP160R1Field
-{
-    private static final long M = 0xFFFFFFFFL;
-
-    // 2^160 - 2^31 - 1
-    static final int[] P = new int[] { 0x7FFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF};
-    static final int[] PExt = new int[] { 0x00000001, 0x40000001, 0x00000000, 0x00000000, 0x00000000,
-        0xFFFFFFFE, 0xFFFFFFFE, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
-    private static final int[] PExtInv = new int[]{ 0xFFFFFFFF, 0xBFFFFFFE, 0xFFFFFFFF, 0xFFFFFFFF,
-        0xFFFFFFFF, 0x00000001, 0x00000001 };
-    private static final int P4 = 0xFFFFFFFF;
-    private static final int PExt9 = 0xFFFFFFFF;
-    private static final int PInv = 0x80000001;
-
-    public static void add(int[] x, int[] y, int[] z)
-    {
-        int c = Nat160.add(x, y, z);
-        if (c != 0 || (z[4] == P4 && Nat160.gte(z, P)))
-        {
-            Nat.addWordTo(5, PInv, z);
-        }
-    }
-
-    public static void addExt(int[] xx, int[] yy, int[] zz)
-    {
-        int c = Nat.add(10, xx, yy, zz);
-        if (c != 0 || (zz[9] == PExt9 && Nat.gte(10, zz, PExt)))
-        {
-            if (Nat.addTo(PExtInv.length, PExtInv, zz) != 0)
-            {
-                Nat.incAt(10, zz, PExtInv.length);
-            }
-        }
-    }
-
-    public static void addOne(int[] x, int[] z)
-    {
-        int c = Nat.inc(5, x, z);
-        if (c != 0 || (z[4] == P4 && Nat160.gte(z, P)))
-        {
-            Nat.addWordTo(5, PInv, z);
-        }
-    }
-
-    public static int[] fromBigInteger(BigInteger x)
-    {
-        int[] z = Nat160.fromBigInteger(x);
-        if (z[4] == P4 && Nat160.gte(z, P))
-        {
-            Nat160.subFrom(P, z);
-        }
-        return z;
-    }
-
-    public static void half(int[] x, int[] z)
-    {
-        if ((x[0] & 1) == 0)
-        {
-            Nat.shiftDownBit(5, x, 0, z);
-        }
-        else
-        {
-            int c = Nat160.add(x, P, z);
-            Nat.shiftDownBit(5, z, c);
-        }
-    }
-
-    public static void multiply(int[] x, int[] y, int[] z)
-    {
-        int[] tt = Nat160.createExt();
-        Nat160.mul(x, y, tt);
-        reduce(tt, z);
-    }
-
-    public static void multiplyAddToExt(int[] x, int[] y, int[] zz)
-    {
-        int c = Nat160.mulAddTo(x, y, zz);
-        if (c != 0 || (zz[9] == PExt9 && Nat.gte(10, zz, PExt)))
-        {
-            if (Nat.addTo(PExtInv.length, PExtInv, zz) != 0)
-            {
-                Nat.incAt(10, zz, PExtInv.length);
-            }
-        }
-    }
-
-    public static void negate(int[] x, int[] z)
-    {
-        if (Nat160.isZero(x))
-        {
-            Nat160.zero(z);
-        }
-        else
-        {
-            Nat160.sub(P, x, z);
-        }
-    }
-
-    public static void reduce(int[] xx, int[] z)
-    {
-        long x5 = xx[5] & M, x6 = xx[6] & M, x7 = xx[7] & M, x8 = xx[8] & M, x9 = xx[9] & M;
-
-        long c = 0;
-        c += (xx[0] & M) + x5 + (x5 << 31);
-        z[0] = (int)c; c >>>= 32;
-        c += (xx[1] & M) + x6 + (x6 << 31);
-        z[1] = (int)c; c >>>= 32;
-        c += (xx[2] & M) + x7 + (x7 << 31);
-        z[2] = (int)c; c >>>= 32;
-        c += (xx[3] & M) + x8 + (x8 << 31);
-        z[3] = (int)c; c >>>= 32;
-        c += (xx[4] & M) + x9 + (x9 << 31);
-        z[4] = (int)c; c >>>= 32;
-
-//        assert c >>> 32 == 0;
-
-        reduce32((int)c, z);
-    }
-
-    public static void reduce32(int x, int[] z)
-    {
-        if ((x != 0 && Nat160.mulWordsAdd(PInv, x, z, 0) != 0)
-            || (z[4] == P4 && Nat160.gte(z, P)))
-        {
-            Nat.addWordTo(5, PInv, z);
-        }
-    }
-
-    public static void square(int[] x, int[] z)
-    {
-        int[] tt = Nat160.createExt();
-        Nat160.square(x, tt);
-        reduce(tt, z);
-    }
-
-    public static void squareN(int[] x, int n, int[] z)
-    {
-//        assert n > 0;
-
-        int[] tt = Nat160.createExt();
-        Nat160.square(x, tt);
-        reduce(tt, z);
-
-        while (--n > 0)
-        {
-            Nat160.square(z, tt);
-            reduce(tt, z);
-        }
-    }
-
-    public static void subtract(int[] x, int[] y, int[] z)
-    {
-        int c = Nat160.sub(x, y, z);
-        if (c != 0)
-        {
-            Nat.subWordFrom(5, PInv, z);
-        }
-    }
-
-    public static void subtractExt(int[] xx, int[] yy, int[] zz)
-    {
-        int c = Nat.sub(10, xx, yy, zz);
-        if (c != 0)
-        {
-            if (Nat.subFrom(PExtInv.length, PExtInv, zz) != 0)
-            {
-                Nat.decAt(10, zz, PExtInv.length);
-            }
-        }
-    }
-
-    public static void twice(int[] x, int[] z)
-    {
-        int c = Nat.shiftUpBit(5, x, 0, z);
-        if (c != 0 || (z[4] == P4 && Nat160.gte(z, P)))
-        {
-            Nat.addWordTo(5, PInv, z);
-        }
-    }
-}