1 files changed, 0 insertions, 91 deletions
diff --git a/lib/src/main/java/com/trilead/ssh2/crypto/KeyMaterial.java b/lib/src/main/java/com/trilead/ssh2/crypto/KeyMaterial.java
deleted file mode 100644
index 1dbd6c7..0000000
--- a/lib/src/main/java/com/trilead/ssh2/crypto/KeyMaterial.java
+++ /dev/null
@@ -1,91 +0,0 @@
-
-package com.trilead.ssh2.crypto;
-
-
-import java.math.BigInteger;
-
-import com.trilead.ssh2.crypto.digest.HashForSSH2Types;
-
-/**
- * Establishes key material for iv/key/mac (both directions).
- * 
- * @author Christian Plattner, plattner@trilead.com
- * @version $Id: KeyMaterial.java,v 1.1 2007/10/15 12:49:56 cplattne Exp $
- */
-public class KeyMaterial
-{
-	public byte[] initial_iv_client_to_server;
-	public byte[] initial_iv_server_to_client;
-	public byte[] enc_key_client_to_server;
-	public byte[] enc_key_server_to_client;
-	public byte[] integrity_key_client_to_server;
-	public byte[] integrity_key_server_to_client;
-
-	private static byte[] calculateKey(HashForSSH2Types sh, BigInteger K, byte[] H, byte type, byte[] SessionID,
-			int keyLength)
-	{
-		byte[] res = new byte[keyLength];
-
-		int dglen = sh.getDigestLength();
-		int numRounds = (keyLength + dglen - 1) / dglen;
-
-		byte[][] tmp = new byte[numRounds][];
-
-		sh.reset();
-		sh.updateBigInt(K);
-		sh.updateBytes(H);
-		sh.updateByte(type);
-		sh.updateBytes(SessionID);
-
-		tmp[0] = sh.getDigest();
-
-		int off = 0;
-		int produced = Math.min(dglen, keyLength);
-
-		System.arraycopy(tmp[0], 0, res, off, produced);
-
-		keyLength -= produced;
-		off += produced;
-
-		for (int i = 1; i < numRounds; i++)
-		{
-			sh.updateBigInt(K);
-			sh.updateBytes(H);
-
-			for (int j = 0; j < i; j++)
-				sh.updateBytes(tmp[j]);
-
-			tmp[i] = sh.getDigest();
-
-			produced = Math.min(dglen, keyLength);
-			System.arraycopy(tmp[i], 0, res, off, produced);
-			keyLength -= produced;
-			off += produced;
-		}
-
-		return res;
-	}
-
-	public static KeyMaterial create(String hashAlgo, byte[] H, BigInteger K, byte[] SessionID, int keyLengthCS,
-			int blockSizeCS, int macLengthCS, int keyLengthSC, int blockSizeSC, int macLengthSC)
-			throws IllegalArgumentException
-	{
-		KeyMaterial km = new KeyMaterial();
-
-		HashForSSH2Types sh = new HashForSSH2Types(hashAlgo);
-
-		km.initial_iv_client_to_server = calculateKey(sh, K, H, (byte) 'A', SessionID, blockSizeCS);
-
-		km.initial_iv_server_to_client = calculateKey(sh, K, H, (byte) 'B', SessionID, blockSizeSC);
-
-		km.enc_key_client_to_server = calculateKey(sh, K, H, (byte) 'C', SessionID, keyLengthCS);
-
-		km.enc_key_server_to_client = calculateKey(sh, K, H, (byte) 'D', SessionID, keyLengthSC);
-
-		km.integrity_key_client_to_server = calculateKey(sh, K, H, (byte) 'E', SessionID, macLengthCS);
-
-		km.integrity_key_server_to_client = calculateKey(sh, K, H, (byte) 'F', SessionID, macLengthSC);
-
-		return km;
-	}
-}