1 files changed, 0 insertions, 114 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/macs/GMac.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/macs/GMac.java
deleted file mode 100644
index acaa819a4..000000000
--- a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/macs/GMac.java
+++ /dev/null
@@ -1,114 +0,0 @@
-package org.spongycastle.crypto.macs;
-
-import org.spongycastle.crypto.CipherParameters;
-import org.spongycastle.crypto.DataLengthException;
-import org.spongycastle.crypto.InvalidCipherTextException;
-import org.spongycastle.crypto.Mac;
-import org.spongycastle.crypto.modes.GCMBlockCipher;
-import org.spongycastle.crypto.params.AEADParameters;
-import org.spongycastle.crypto.params.KeyParameter;
-import org.spongycastle.crypto.params.ParametersWithIV;
-
-/**
- * The GMAC specialisation of Galois/Counter mode (GCM) detailed in NIST Special Publication
- * 800-38D.
- * <p>
- * GMac is an invocation of the GCM mode where no data is encrypted (i.e. all input data to the Mac
- * is processed as additional authenticated data with the underlying GCM block cipher).
- */
-public class GMac implements Mac
-{
-    private final GCMBlockCipher cipher;
-    private final int macSizeBits;
-
-    /**
-     * Creates a GMAC based on the operation of a block cipher in GCM mode.
-     * <p/>
-     * This will produce an authentication code the length of the block size of the cipher.
-     * 
-     * @param cipher
-     *            the cipher to be used in GCM mode to generate the MAC.
-     */
-    public GMac(final GCMBlockCipher cipher)
-    {
-        // use of this confused flow analyser in some earlier JDKs
-        this.cipher = cipher;
-        this.macSizeBits = 128;
-    }
-
-    /**
-     * Creates a GMAC based on the operation of a 128 bit block cipher in GCM mode.
-     * 
-     * @param macSizeBits
-     *            the mac size to generate, in bits. Must be a multiple of 8 and >= 96 and <= 128.
-     * @param cipher
-     *            the cipher to be used in GCM mode to generate the MAC.
-     */
-    public GMac(final GCMBlockCipher cipher, final int macSizeBits)
-    {
-        this.cipher = cipher;
-        this.macSizeBits = macSizeBits;
-    }
-
-    /**
-     * Initialises the GMAC - requires a {@link ParametersWithIV} providing a {@link KeyParameter}
-     * and a nonce.
-     */
-    public void init(final CipherParameters params) throws IllegalArgumentException
-    {
-        if (params instanceof ParametersWithIV)
-        {
-            final ParametersWithIV param = (ParametersWithIV)params;
-
-            final byte[] iv = param.getIV();
-            final KeyParameter keyParam = (KeyParameter)param.getParameters();
-
-            // GCM is always operated in encrypt mode to calculate MAC
-            cipher.init(true, new AEADParameters(keyParam, macSizeBits, iv));
-        }
-        else
-        {
-            throw new IllegalArgumentException("GMAC requires ParametersWithIV");
-        }
-    }
-
-    public String getAlgorithmName()
-    {
-        return cipher.getUnderlyingCipher().getAlgorithmName() + "-GMAC";
-    }
-
-    public int getMacSize()
-    {
-        return macSizeBits / 8;
-    }
-
-    public void update(byte in) throws IllegalStateException
-    {
-        cipher.processAADByte(in);
-    }
-
-    public void update(byte[] in, int inOff, int len)
-        throws DataLengthException, IllegalStateException
-    {
-        cipher.processAADBytes(in, inOff, len);
-    }
-
-    public int doFinal(byte[] out, int outOff)
-        throws DataLengthException, IllegalStateException
-    {
-        try
-        {
-            return cipher.doFinal(out, outOff);
-        }
-        catch (InvalidCipherTextException e)
-        {
-            // Impossible in encrypt mode
-            throw new IllegalStateException(e.toString());
-        }
-    }
-
-    public void reset()
-    {
-        cipher.reset();
-    }
-}