1 files changed, 0 insertions, 124 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/x9/X9FieldID.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/x9/X9FieldID.java
deleted file mode 100644
index e73fad726..000000000
--- a/libraries/spongycastle/core/src/main/java/org/spongycastle/asn1/x9/X9FieldID.java
+++ /dev/null
@@ -1,124 +0,0 @@
-package org.spongycastle.asn1.x9;
-
-import java.math.BigInteger;
-
-import org.spongycastle.asn1.ASN1EncodableVector;
-import org.spongycastle.asn1.ASN1Integer;
-import org.spongycastle.asn1.ASN1Object;
-import org.spongycastle.asn1.ASN1ObjectIdentifier;
-import org.spongycastle.asn1.ASN1Primitive;
-import org.spongycastle.asn1.ASN1Sequence;
-import org.spongycastle.asn1.DERSequence;
-
-/**
- * ASN.1 def for Elliptic-Curve Field ID structure. See
- * X9.62, for further details.
- */
-public class X9FieldID
-    extends ASN1Object
-    implements X9ObjectIdentifiers
-{
-    private ASN1ObjectIdentifier     id;
-    private ASN1Primitive parameters;
-
-    /**
-     * Constructor for elliptic curves over prime fields
-     * <code>F<sub>2</sub></code>.
-     * @param primeP The prime <code>p</code> defining the prime field.
-     */
-    public X9FieldID(BigInteger primeP)
-    {
-        this.id = prime_field;
-        this.parameters = new ASN1Integer(primeP);
-    }
-
-    /**
-     * Constructor for elliptic curves over binary fields
-     * <code>F<sub>2<sup>m</sup></sub></code>.
-     * @param m  The exponent <code>m</code> of
-     * <code>F<sub>2<sup>m</sup></sub></code>.
-     * @param k1 The integer <code>k1</code> where <code>x<sup>m</sup> +
-     * x<sup>k3</sup> + x<sup>k2</sup> + x<sup>k1</sup> + 1</code>
-     * represents the reduction polynomial <code>f(z)</code>.
-     * @param k2 The integer <code>k2</code> where <code>x<sup>m</sup> +
-     * x<sup>k3</sup> + x<sup>k2</sup> + x<sup>k1</sup> + 1</code>
-     * represents the reduction polynomial <code>f(z)</code>.
-     * @param k3 The integer <code>k3</code> where <code>x<sup>m</sup> +
-     * x<sup>k3</sup> + x<sup>k2</sup> + x<sup>k1</sup> + 1</code>
-     * represents the reduction polynomial <code>f(z)</code>..
-     */
-    public X9FieldID(int m, int k1, int k2, int k3)
-    {
-        this.id = characteristic_two_field;
-        ASN1EncodableVector fieldIdParams = new ASN1EncodableVector();
-        fieldIdParams.add(new ASN1Integer(m));
-        
-        if (k2 == 0) 
-        {
-            fieldIdParams.add(tpBasis);
-            fieldIdParams.add(new ASN1Integer(k1));
-        } 
-        else 
-        {
-            fieldIdParams.add(ppBasis);
-            ASN1EncodableVector pentanomialParams = new ASN1EncodableVector();
-            pentanomialParams.add(new ASN1Integer(k1));
-            pentanomialParams.add(new ASN1Integer(k2));
-            pentanomialParams.add(new ASN1Integer(k3));
-            fieldIdParams.add(new DERSequence(pentanomialParams));
-        }
-        
-        this.parameters = new DERSequence(fieldIdParams);
-    }
-
-    private X9FieldID(
-        ASN1Sequence  seq)
-    {
-        this.id = ASN1ObjectIdentifier.getInstance(seq.getObjectAt(0));
-        this.parameters = seq.getObjectAt(1).toASN1Primitive();
-    }
-
-    public static X9FieldID getInstance(Object obj)
-    {
-        if (obj instanceof X9FieldID)
-        {
-            return (X9FieldID)obj;
-        }
-
-        if (obj != null)
-        {
-            return new X9FieldID(ASN1Sequence.getInstance(obj));
-        }
-
-        return null;
-    }
-
-    public ASN1ObjectIdentifier getIdentifier()
-    {
-        return id;
-    }
-
-    public ASN1Primitive getParameters()
-    {
-        return parameters;
-    }
-
-    /**
-     * Produce a DER encoding of the following structure.
-     * <pre>
-     *  FieldID ::= SEQUENCE {
-     *      fieldType       FIELD-ID.&amp;id({IOSet}),
-     *      parameters      FIELD-ID.&amp;Type({IOSet}{&#64;fieldType})
-     *  }
-     * </pre>
-     */
-    public ASN1Primitive toASN1Primitive()
-    {
-        ASN1EncodableVector v = new ASN1EncodableVector();
-
-        v.add(this.id);
-        v.add(this.parameters);
-
-        return new DERSequence(v);
-    }
-}