1 files changed, 0 insertions, 269 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/pqc/crypto/ntru/NTRUSigningParameters.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/pqc/crypto/ntru/NTRUSigningParameters.java
deleted file mode 100644
index 44c5a0a1e..000000000
--- a/libraries/spongycastle/core/src/main/java/org/spongycastle/pqc/crypto/ntru/NTRUSigningParameters.java
+++ /dev/null
@@ -1,269 +0,0 @@
-package org.spongycastle.pqc.crypto.ntru;
-
-import java.io.DataInputStream;
-import java.io.DataOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.text.DecimalFormat;
-
-import org.spongycastle.crypto.Digest;
-import org.spongycastle.crypto.digests.SHA256Digest;
-import org.spongycastle.crypto.digests.SHA512Digest;
-
-/**
- * A set of parameters for NtruSign. Several predefined parameter sets are available and new ones can be created as well.
- */
-public class NTRUSigningParameters
-    implements Cloneable
-{
-    public int N;
-    public int q;
-    public int d, d1, d2, d3, B;
-    double beta;
-    public double betaSq;
-    double normBound;
-    public double normBoundSq;
-    public int signFailTolerance = 100;
-    int bitsF = 6;   // max #bits needed to encode one coefficient of the polynomial F
-    public Digest hashAlg;
-
-    /**
-     * Constructs a parameter set that uses ternary private keys (i.e. </code>polyType=SIMPLE</code>).
-     *
-     * @param N            number of polynomial coefficients
-     * @param q            modulus
-     * @param d            number of -1's in the private polynomials <code>f</code> and <code>g</code>
-     * @param B            number of perturbations
-     * @param beta         balancing factor for the transpose lattice
-     * @param normBound    maximum norm for valid signatures
-     * @param hashAlg      a valid identifier for a <code>java.security.MessageDigest</code> instance such as <code>SHA-256</code>. The <code>MessageDigest</code> must support the <code>getDigestLength()</code> method.
-     */
-    public NTRUSigningParameters(int N, int q, int d, int B, double beta, double normBound, Digest hashAlg)
-    {
-        this.N = N;
-        this.q = q;
-        this.d = d;
-        this.B = B;
-        this.beta = beta;
-        this.normBound = normBound;
-        this.hashAlg = hashAlg;
-        init();
-    }
-
-    /**
-     * Constructs a parameter set that uses product-form private keys (i.e. </code>polyType=PRODUCT</code>).
-     *
-     * @param N            number of polynomial coefficients
-     * @param q            modulus
-     * @param d1           number of -1's in the private polynomials <code>f</code> and <code>g</code>
-     * @param d2           number of -1's in the private polynomials <code>f</code> and <code>g</code>
-     * @param d3           number of -1's in the private polynomials <code>f</code> and <code>g</code>
-     * @param B            number of perturbations
-     * @param beta         balancing factor for the transpose lattice
-     * @param normBound    maximum norm for valid signatures
-     * @param keyNormBound maximum norm for the ploynomials <code>F</code> and <code>G</code>
-     * @param hashAlg      a valid identifier for a <code>java.security.MessageDigest</code> instance such as <code>SHA-256</code>. The <code>MessageDigest</code> must support the <code>getDigestLength()</code> method.
-     */
-    public NTRUSigningParameters(int N, int q, int d1, int d2, int d3, int B, double beta, double normBound, double keyNormBound, Digest hashAlg)
-    {
-        this.N = N;
-        this.q = q;
-        this.d1 = d1;
-        this.d2 = d2;
-        this.d3 = d3;
-        this.B = B;
-        this.beta = beta;
-        this.normBound = normBound;
-        this.hashAlg = hashAlg;
-        init();
-    }
-
-    private void init()
-    {
-        betaSq = beta * beta;
-        normBoundSq = normBound * normBound;
-    }
-
-    /**
-     * Reads a parameter set from an input stream.
-     *
-     * @param is an input stream
-     * @throws IOException
-     */
-    public NTRUSigningParameters(InputStream is)
-        throws IOException
-    {
-        DataInputStream dis = new DataInputStream(is);
-        N = dis.readInt();
-        q = dis.readInt();
-        d = dis.readInt();
-        d1 = dis.readInt();
-        d2 = dis.readInt();
-        d3 = dis.readInt();
-        B = dis.readInt();
-        beta = dis.readDouble();
-        normBound = dis.readDouble();
-        signFailTolerance = dis.readInt();
-        bitsF = dis.readInt();
-        String alg = dis.readUTF();
-        if ("SHA-512".equals(alg))
-        {
-            hashAlg = new SHA512Digest();
-        }
-        else if ("SHA-256".equals(alg))
-        {
-            hashAlg = new SHA256Digest();
-        }
-        init();
-    }
-
-    /**
-     * Writes the parameter set to an output stream
-     *
-     * @param os an output stream
-     * @throws IOException
-     */
-    public void writeTo(OutputStream os)
-        throws IOException
-    {
-        DataOutputStream dos = new DataOutputStream(os);
-        dos.writeInt(N);
-        dos.writeInt(q);
-        dos.writeInt(d);
-        dos.writeInt(d1);
-        dos.writeInt(d2);
-        dos.writeInt(d3);
-        dos.writeInt(B);
-        dos.writeDouble(beta);
-        dos.writeDouble(normBound);
-        dos.writeInt(signFailTolerance);
-        dos.writeInt(bitsF);
-        dos.writeUTF(hashAlg.getAlgorithmName());
-    }
-
-    public NTRUSigningParameters clone()
-    {
-        return new NTRUSigningParameters(N, q, d, B, beta, normBound, hashAlg);
-    }
-
-    public int hashCode()
-    {
-        final int prime = 31;
-        int result = 1;
-        result = prime * result + B;
-        result = prime * result + N;
-        long temp;
-        temp = Double.doubleToLongBits(beta);
-        result = prime * result + (int)(temp ^ (temp >>> 32));
-        temp = Double.doubleToLongBits(betaSq);
-        result = prime * result + (int)(temp ^ (temp >>> 32));
-        result = prime * result + bitsF;
-        result = prime * result + d;
-        result = prime * result + d1;
-        result = prime * result + d2;
-        result = prime * result + d3;
-        result = prime * result + ((hashAlg == null) ? 0 : hashAlg.getAlgorithmName().hashCode());
-        temp = Double.doubleToLongBits(normBound);
-        result = prime * result + (int)(temp ^ (temp >>> 32));
-        temp = Double.doubleToLongBits(normBoundSq);
-        result = prime * result + (int)(temp ^ (temp >>> 32));
-        result = prime * result + q;
-        result = prime * result + signFailTolerance;
-        return result;
-    }
-
-    public boolean equals(Object obj)
-    {
-        if (this == obj)
-        {
-            return true;
-        }
-        if (obj == null)
-        {
-            return false;
-        }
-        if (!(obj instanceof NTRUSigningParameters))
-        {
-            return false;
-        }
-        NTRUSigningParameters other = (NTRUSigningParameters)obj;
-        if (B != other.B)
-        {
-            return false;
-        }
-        if (N != other.N)
-        {
-            return false;
-        }
-        if (Double.doubleToLongBits(beta) != Double.doubleToLongBits(other.beta))
-        {
-            return false;
-        }
-        if (Double.doubleToLongBits(betaSq) != Double.doubleToLongBits(other.betaSq))
-        {
-            return false;
-        }
-        if (bitsF != other.bitsF)
-        {
-            return false;
-        }
-        if (d != other.d)
-        {
-            return false;
-        }
-        if (d1 != other.d1)
-        {
-            return false;
-        }
-        if (d2 != other.d2)
-        {
-            return false;
-        }
-        if (d3 != other.d3)
-        {
-            return false;
-        }
-        if (hashAlg == null)
-        {
-            if (other.hashAlg != null)
-            {
-                return false;
-            }
-        }
-        else if (!hashAlg.getAlgorithmName().equals(other.hashAlg.getAlgorithmName()))
-        {
-            return false;
-        }
-        if (Double.doubleToLongBits(normBound) != Double.doubleToLongBits(other.normBound))
-        {
-            return false;
-        }
-        if (Double.doubleToLongBits(normBoundSq) != Double.doubleToLongBits(other.normBoundSq))
-        {
-            return false;
-        }
-        if (q != other.q)
-        {
-            return false;
-        }
-        if (signFailTolerance != other.signFailTolerance)
-        {
-            return false;
-        }
-
-        return true;
-    }
-
-    public String toString()
-    {
-        DecimalFormat format = new DecimalFormat("0.00");
-
-        StringBuilder output = new StringBuilder("SignatureParameters(N=" + N + " q=" + q);
-
-        output.append(" B=" + B + " beta=" + format.format(beta) +
-            " normBound=" + format.format(normBound) +
-            " hashAlg=" + hashAlg + ")");
-        return output.toString();
-    }
-}