1 files changed, 0 insertions, 189 deletions
diff --git a/core/src/main/java/org/bouncycastle/math/ec/custom/sec/SecP256R1FieldElement.java b/core/src/main/java/org/bouncycastle/math/ec/custom/sec/SecP256R1FieldElement.java
deleted file mode 100644
index be250d10..00000000
--- a/core/src/main/java/org/bouncycastle/math/ec/custom/sec/SecP256R1FieldElement.java
+++ /dev/null
@@ -1,189 +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.Nat256;
-import org.bouncycastle.util.Arrays;
-
-public class SecP256R1FieldElement extends ECFieldElement
-{
-    public static final BigInteger Q = SecP256R1Curve.q;
-
-    protected int[] x;
-
-    public SecP256R1FieldElement(BigInteger x)
-    {
-        if (x == null || x.signum() < 0 || x.compareTo(Q) >= 0)
-        {
-            throw new IllegalArgumentException("x value invalid for SecP256R1FieldElement");
-        }
-
-        this.x = SecP256R1Field.fromBigInteger(x);
-    }
-
-    public SecP256R1FieldElement()
-    {
-        this.x = Nat256.create();
-    }
-
-    protected SecP256R1FieldElement(int[] x)
-    {
-        this.x = x;
-    }
-
-    public boolean isZero()
-    {
-        return Nat256.isZero(x);
-    }
-
-    public boolean isOne()
-    {
-        return Nat256.isOne(x);
-    }
-
-    public boolean testBitZero()
-    {
-        return Nat256.getBit(x, 0) == 1;
-    }
-
-    public BigInteger toBigInteger()
-    {
-        return Nat256.toBigInteger(x);
-    }
-
-    public String getFieldName()
-    {
-        return "SecP256R1Field";
-    }
-
-    public int getFieldSize()
-    {
-        return Q.bitLength();
-    }
-
-    public ECFieldElement add(ECFieldElement b)
-    {
-        int[] z = Nat256.create();
-        SecP256R1Field.add(x, ((SecP256R1FieldElement)b).x, z);
-        return new SecP256R1FieldElement(z);
-    }
-
-    public ECFieldElement addOne()
-    {
-        int[] z = Nat256.create();
-        SecP256R1Field.addOne(x, z);
-        return new SecP256R1FieldElement(z);
-    }
-
-    public ECFieldElement subtract(ECFieldElement b)
-    {
-        int[] z = Nat256.create();
-        SecP256R1Field.subtract(x, ((SecP256R1FieldElement)b).x, z);
-        return new SecP256R1FieldElement(z);
-    }
-
-    public ECFieldElement multiply(ECFieldElement b)
-    {
-        int[] z = Nat256.create();
-        SecP256R1Field.multiply(x, ((SecP256R1FieldElement)b).x, z);
-        return new SecP256R1FieldElement(z);
-    }
-
-    public ECFieldElement divide(ECFieldElement b)
-    {
-//        return multiply(b.invert());
-        int[] z = Nat256.create();
-        Mod.invert(SecP256R1Field.P, ((SecP256R1FieldElement)b).x, z);
-        SecP256R1Field.multiply(z, x, z);
-        return new SecP256R1FieldElement(z);
-    }
-
-    public ECFieldElement negate()
-    {
-        int[] z = Nat256.create();
-        SecP256R1Field.negate(x, z);
-        return new SecP256R1FieldElement(z);
-    }
-
-    public ECFieldElement square()
-    {
-        int[] z = Nat256.create();
-        SecP256R1Field.square(x, z);
-        return new SecP256R1FieldElement(z);
-    }
-
-    public ECFieldElement invert()
-    {
-//        return new SecP256R1FieldElement(toBigInteger().modInverse(Q));
-        int[] z = Nat256.create();
-        Mod.invert(SecP256R1Field.P, x, z);
-        return new SecP256R1FieldElement(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 2^254 - 2^222 + 2^190 + 2^94
-
-        int[] x1 = this.x;
-        if (Nat256.isZero(x1) || Nat256.isOne(x1))
-        {
-            return this;
-        }
-
-        int[] t1 = Nat256.create();
-        int[] t2 = Nat256.create();
-
-        SecP256R1Field.square(x1, t1);
-        SecP256R1Field.multiply(t1, x1, t1);
-
-        SecP256R1Field.squareN(t1, 2, t2);
-        SecP256R1Field.multiply(t2, t1, t2);
-
-        SecP256R1Field.squareN(t2, 4, t1);
-        SecP256R1Field.multiply(t1, t2, t1);
-
-        SecP256R1Field.squareN(t1, 8, t2);
-        SecP256R1Field.multiply(t2, t1, t2);
-
-        SecP256R1Field.squareN(t2, 16, t1);
-        SecP256R1Field.multiply(t1, t2, t1);
-
-        SecP256R1Field.squareN(t1, 32, t1);
-        SecP256R1Field.multiply(t1, x1, t1);
-
-        SecP256R1Field.squareN(t1, 96, t1);
-        SecP256R1Field.multiply(t1, x1, t1);
-
-        SecP256R1Field.squareN(t1, 94, t1);
-        SecP256R1Field.square(t1, t2);
-
-        return Nat256.eq(x1, t2) ? new SecP256R1FieldElement(t1) : null;
-    }
-
-    public boolean equals(Object other)
-    {
-        if (other == this)
-        {
-            return true;
-        }
-
-        if (!(other instanceof SecP256R1FieldElement))
-        {
-            return false;
-        }
-
-        SecP256R1FieldElement o = (SecP256R1FieldElement)other;
-        return Nat256.eq(x, o.x);
-    }
-
-    public int hashCode()
-    {
-        return Q.hashCode() ^ Arrays.hashCode(x, 0, 8);
-    }
-}