1 files changed, 0 insertions, 114 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/generators/MGF1BytesGenerator.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/generators/MGF1BytesGenerator.java
deleted file mode 100644
index 03cb7ba50..000000000
--- a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/generators/MGF1BytesGenerator.java
+++ /dev/null
@@ -1,114 +0,0 @@
-package org.spongycastle.crypto.generators;
-
-import org.spongycastle.crypto.DataLengthException;
-import org.spongycastle.crypto.DerivationFunction;
-import org.spongycastle.crypto.DerivationParameters;
-import org.spongycastle.crypto.Digest;
-import org.spongycastle.crypto.params.MGFParameters;
-
-/**
- * Generator for MGF1 as defined in PKCS 1v2
- */
-public class MGF1BytesGenerator
-    implements DerivationFunction
-{
-    private Digest  digest;
-    private byte[]  seed;
-    private int     hLen;
-
-    /**
-     * @param digest the digest to be used as the source of generated bytes
-     */
-    public MGF1BytesGenerator(
-        Digest  digest)
-    {
-        this.digest = digest;
-        this.hLen = digest.getDigestSize();
-    }
-
-    public void init(
-        DerivationParameters    param)
-    {
-        if (!(param instanceof MGFParameters))
-        {
-            throw new IllegalArgumentException("MGF parameters required for MGF1Generator");
-        }
-
-        MGFParameters   p = (MGFParameters)param;
-
-        seed = p.getSeed();
-    }
-
-    /**
-     * return the underlying digest.
-     */
-    public Digest getDigest()
-    {
-        return digest;
-    }
-
-    /**
-     * int to octet string.
-     */
-    private void ItoOSP(
-        int     i,
-        byte[]  sp)
-    {
-        sp[0] = (byte)(i >>> 24);
-        sp[1] = (byte)(i >>> 16);
-        sp[2] = (byte)(i >>> 8);
-        sp[3] = (byte)(i >>> 0);
-    }
-
-    /**
-     * fill len bytes of the output buffer with bytes generated from
-     * the derivation function.
-     *
-     * @throws DataLengthException if the out buffer is too small.
-     */
-    public int generateBytes(
-        byte[]  out,
-        int     outOff,
-        int     len)
-        throws DataLengthException, IllegalArgumentException
-    {
-        if ((out.length - len) < outOff)
-        {
-            throw new DataLengthException("output buffer too small");
-        }
-        
-        byte[]  hashBuf = new byte[hLen];
-        byte[]  C = new byte[4];
-        int     counter = 0;
-
-        digest.reset();
-
-        if (len > hLen)
-        {
-            do
-            {
-                ItoOSP(counter, C);
-    
-                digest.update(seed, 0, seed.length);
-                digest.update(C, 0, C.length);
-                digest.doFinal(hashBuf, 0);
-    
-                System.arraycopy(hashBuf, 0, out, outOff + counter * hLen, hLen);
-            }
-            while (++counter < (len / hLen));
-        }
-
-        if ((counter * hLen) < len)
-        {
-            ItoOSP(counter, C);
-
-            digest.update(seed, 0, seed.length);
-            digest.update(C, 0, C.length);
-            digest.doFinal(hashBuf, 0);
-
-            System.arraycopy(hashBuf, 0, out, outOff + counter * hLen, len - (counter * hLen));
-        }
-
-        return len;
-    }
-}