1 files changed, 0 insertions, 213 deletions
diff --git a/core/src/main/java/org/bouncycastle/math/ec/custom/sec/SecP192K1FieldElement.java b/core/src/main/java/org/bouncycastle/math/ec/custom/sec/SecP192K1FieldElement.java
deleted file mode 100644
index 0032f357..00000000
--- a/core/src/main/java/org/bouncycastle/math/ec/custom/sec/SecP192K1FieldElement.java
+++ /dev/null
@@ -1,213 +0,0 @@
-package org.bouncycastle.math.ec.custom.sec;
-
-import java.math.BigInteger;
-
-import org.bouncycastle.math.ec.ECFieldElement;
-import org.bouncycastle.math.raw.Mod;
-import org.bouncycastle.math.raw.Nat192;
-import org.bouncycastle.util.Arrays;
-
-public class SecP192K1FieldElement extends ECFieldElement
-{
-    public static final BigInteger Q = SecP192K1Curve.q;
-
-    protected int[] x;
-
-    public SecP192K1FieldElement(BigInteger x)
-    {
-        if (x == null || x.signum() < 0 || x.compareTo(Q) >= 0)
-        {
-            throw new IllegalArgumentException("x value invalid for SecP192K1FieldElement");
-        }
-
-        this.x = SecP192K1Field.fromBigInteger(x);
-    }
-
-    public SecP192K1FieldElement()
-    {
-        this.x = Nat192.create();
-    }
-
-    protected SecP192K1FieldElement(int[] x)
-    {
-        this.x = x;
-    }
-
-    public boolean isZero()
-    {
-        return Nat192.isZero(x);
-    }
-
-    public boolean isOne()
-    {
-        return Nat192.isOne(x);
-    }
-
-    public boolean testBitZero()
-    {
-        return Nat192.getBit(x, 0) == 1;
-    }
-
-    public BigInteger toBigInteger()
-    {
-        return Nat192.toBigInteger(x);
-    }
-
-    public String getFieldName()
-    {
-        return "SecP192K1Field";
-    }
-
-    public int getFieldSize()
-    {
-        return Q.bitLength();
-    }
-
-    public ECFieldElement add(ECFieldElement b)
-    {
-        int[] z = Nat192.create();
-        SecP192K1Field.add(x, ((SecP192K1FieldElement)b).x, z);
-        return new SecP192K1FieldElement(z);
-    }
-
-    public ECFieldElement addOne()
-    {
-        int[] z = Nat192.create();
-        SecP192K1Field.addOne(x, z);
-        return new SecP192K1FieldElement(z);
-    }
-
-    public ECFieldElement subtract(ECFieldElement b)
-    {
-        int[] z = Nat192.create();
-        SecP192K1Field.subtract(x, ((SecP192K1FieldElement)b).x, z);
-        return new SecP192K1FieldElement(z);
-    }
-
-    public ECFieldElement multiply(ECFieldElement b)
-    {
-        int[] z = Nat192.create();
-        SecP192K1Field.multiply(x, ((SecP192K1FieldElement)b).x, z);
-        return new SecP192K1FieldElement(z);
-    }
-
-    public ECFieldElement divide(ECFieldElement b)
-    {
-//        return multiply(b.invert());
-        int[] z = Nat192.create();
-        Mod.invert(SecP192K1Field.P, ((SecP192K1FieldElement)b).x, z);
-        SecP192K1Field.multiply(z, x, z);
-        return new SecP192K1FieldElement(z);
-    }
-
-    public ECFieldElement negate()
-    {
-        int[] z = Nat192.create();
-        SecP192K1Field.negate(x, z);
-        return new SecP192K1FieldElement(z);
-    }
-
-    public ECFieldElement square()
-    {
-        int[] z = Nat192.create();
-        SecP192K1Field.square(x, z);
-        return new SecP192K1FieldElement(z);
-    }
-
-    public ECFieldElement invert()
-    {
-//        return new SecP192K1FieldElement(toBigInteger().modInverse(Q));
-        int[] z = Nat192.create();
-        Mod.invert(SecP192K1Field.P, x, z);
-        return new SecP192K1FieldElement(z);
-    }
-
-    /**
-     * return a sqrt root - the routine verifies that the calculation returns the right value - if
-     * none exists it returns null.
-     */
-    public ECFieldElement sqrt()
-    {
-        /*
-         * Raise this element to the exponent 2^190 - 2^30 - 2^10 - 2^6 - 2^5 - 2^4 - 2^1
-         * 
-         * Breaking up the exponent's binary representation into "repunits", we get:
-         * { 159 1s } { 1 0s } { 19 1s } { 1 0s } { 3 1s } { 3 0s} { 3 1s } { 1 0s }
-         * 
-         * Therefore we need an addition chain containing 3, 19, 159 (the lengths of the repunits)
-         * We use: 1, 2, [3], 6, 8, 16, [19], 35, 70, 140, [159]
-         */
-
-        int[] x1 = this.x;
-        if (Nat192.isZero(x1) || Nat192.isOne(x1))
-        {
-            return this;
-        }
-
-        int[] x2 = Nat192.create();
-        SecP192K1Field.square(x1, x2);
-        SecP192K1Field.multiply(x2, x1, x2);
-        int[] x3 = Nat192.create();
-        SecP192K1Field.square(x2, x3);
-        SecP192K1Field.multiply(x3, x1, x3);
-        int[] x6 = Nat192.create();
-        SecP192K1Field.squareN(x3, 3, x6);
-        SecP192K1Field.multiply(x6, x3, x6);
-        int[] x8 = x6;
-        SecP192K1Field.squareN(x6, 2, x8);
-        SecP192K1Field.multiply(x8, x2, x8);
-        int[] x16 = x2;
-        SecP192K1Field.squareN(x8, 8, x16);
-        SecP192K1Field.multiply(x16, x8, x16);
-        int[] x19 = x8;
-        SecP192K1Field.squareN(x16, 3, x19);
-        SecP192K1Field.multiply(x19, x3, x19);
-        int[] x35 = Nat192.create();
-        SecP192K1Field.squareN(x19, 16, x35);
-        SecP192K1Field.multiply(x35, x16, x35);
-        int[] x70 = x16;
-        SecP192K1Field.squareN(x35, 35, x70);
-        SecP192K1Field.multiply(x70, x35, x70);
-        int[] x140 = x35;
-        SecP192K1Field.squareN(x70, 70, x140);
-        SecP192K1Field.multiply(x140, x70, x140);
-        int[] x159 = x70;
-        SecP192K1Field.squareN(x140, 19, x159);
-        SecP192K1Field.multiply(x159, x19, x159);
-
-        int[] t1 = x159;
-        SecP192K1Field.squareN(t1, 20, t1);
-        SecP192K1Field.multiply(t1, x19, t1);
-        SecP192K1Field.squareN(t1, 4, t1);
-        SecP192K1Field.multiply(t1, x3, t1);
-        SecP192K1Field.squareN(t1, 6, t1);
-        SecP192K1Field.multiply(t1, x3, t1);
-        SecP192K1Field.square(t1, t1);
-
-        int[] t2 = x3;
-        SecP192K1Field.square(t1, t2);
-
-        return Nat192.eq(x1, t2) ? new SecP192K1FieldElement(t1) : null;        
-    }
-
-    public boolean equals(Object other)
-    {
-        if (other == this)
-        {
-            return true;
-        }
-
-        if (!(other instanceof SecP192K1FieldElement))
-        {
-            return false;
-        }
-
-        SecP192K1FieldElement o = (SecP192K1FieldElement)other;
-        return Nat192.eq(x, o.x);
-    }
-
-    public int hashCode()
-    {
-        return Q.hashCode() ^ Arrays.hashCode(x, 0, 6);
-    }
-}