1 files changed, 0 insertions, 229 deletions
diff --git a/src/com/trilead/ssh2/crypto/SimpleDERReader.java b/src/com/trilead/ssh2/crypto/SimpleDERReader.java
deleted file mode 100644
index ff8112a..0000000
--- a/src/com/trilead/ssh2/crypto/SimpleDERReader.java
+++ /dev/null
@@ -1,229 +0,0 @@
-package com.trilead.ssh2.crypto;
-
-import java.io.IOException;
-
-import java.math.BigInteger;
-
-/**
- * SimpleDERReader.
- * 
- * @author Christian Plattner, plattner@trilead.com
- * @version $Id: SimpleDERReader.java,v 1.1 2007/10/15 12:49:56 cplattne Exp $
- */
-public class SimpleDERReader
-{
-	private static final int CONSTRUCTED = 0x20;
-
-	byte[] buffer;
-	int pos;
-	int count;
-
-	public SimpleDERReader(byte[] b)
-	{
-		resetInput(b);
-	}
-	
-	public SimpleDERReader(byte[] b, int off, int len)
-	{
-		resetInput(b, off, len);
-	}
-
-	public void resetInput(byte[] b)
-	{
-		resetInput(b, 0, b.length);
-	}
-	
-	public void resetInput(byte[] b, int off, int len)
-	{
-		buffer = b;
-		pos = off;
-		count = len;
-	}
-
-	private byte readByte() throws IOException
-	{
-		if (count <= 0)
-			throw new IOException("DER byte array: out of data");
-		count--;
-		return buffer[pos++];
-	}
-
-	private byte[] readBytes(int len) throws IOException
-	{
-		if (len > count)
-			throw new IOException("DER byte array: out of data");
-
-		byte[] b = new byte[len];
-
-		System.arraycopy(buffer, pos, b, 0, len);
-
-		pos += len;
-		count -= len;
-
-		return b;
-	}
-
-	public int available()
-	{
-		return count;
-	}
-
-	private int readLength() throws IOException
-	{
-		int len = readByte() & 0xff;
-
-		if ((len & 0x80) == 0)
-			return len;
-
-		int remain = len & 0x7F;
-
-		if (remain == 0)
-			return -1;
-
-		len = 0;
-		
-		while (remain > 0)
-		{
-			len = len << 8;
-			len = len | (readByte() & 0xff);
-			remain--;
-		}
-
-		return len;
-	}
-
-	public int ignoreNextObject() throws IOException
-	{
-		int type = readByte() & 0xff;
-
-		int len = readLength();
-
-		if ((len < 0) || len > available())
-			throw new IOException("Illegal len in DER object (" + len  + ")");
-
-		readBytes(len);
-		
-		return type;
-	}
-	
-	public BigInteger readInt() throws IOException
-	{
-		int type = readByte() & 0xff;
-		
-		if (type != 0x02)
-			throw new IOException("Expected DER Integer, but found type " + type);
-		
-		int len = readLength();
-
-		if ((len < 0) || len > available())
-			throw new IOException("Illegal len in DER object (" + len  + ")");
-
-		byte[] b = readBytes(len);
-		
-		BigInteger bi = new BigInteger(b);
-		
-		return bi;
-	}
-
-	public int readConstructedType() throws IOException {
-		int type = readByte() & 0xff;
-
-		if ((type & CONSTRUCTED) != CONSTRUCTED)
-			throw new IOException("Expected constructed type, but was " + type);
-
-		return type & 0x1f;
-	}
-
-	public SimpleDERReader readConstructed() throws IOException
-	{
-		int len = readLength();
-
-		if ((len < 0) || len > available())
-			throw new IOException("Illegal len in DER object (" + len  + ")");
-
-		SimpleDERReader cr = new SimpleDERReader(buffer, pos, len);
-
-		pos += len;
-		count -= len;
-
-		return cr;
-	}
-
-	public byte[] readSequenceAsByteArray() throws IOException
-	{
-		int type = readByte() & 0xff;
-		
-		if (type != 0x30)
-			throw new IOException("Expected DER Sequence, but found type " + type);
-		
-		int len = readLength();
-
-		if ((len < 0) || len > available())
-			throw new IOException("Illegal len in DER object (" + len  + ")");
-
-		byte[] b = readBytes(len);
-
-		return b;
-	}
-
-	public String readOid() throws IOException
-	{
-		int type = readByte() & 0xff;
-
-		if (type != 0x06)
-		   throw new IOException("Expected DER OID, but found type " + type);
-
-		int len = readLength();
-
-		if ((len < 1) || len > available())
-			throw new IOException("Illegal len in DER object (" + len  + ")");
-
-		byte[] b = readBytes(len);
-
-		long value = 0;
-
-		StringBuilder sb = new StringBuilder(64);
-		switch(b[0] / 40) {
-		case 0:
-			sb.append('0');
-			break;
-		case 1:
-			sb.append('1');
-			b[0] -= 40;
-			break;
-		default:
-			sb.append('2');
-			b[0] -= 80;
-			break;
-		}
-
-		for (int i = 0; i < len; i++) {
-			value = (value << 7) + (b[i] & 0x7F);
-			if ((b[i] & 0x80) == 0) {
-				sb.append('.');
-				sb.append(value);
-				value = 0;
-			}
-		}
-
-		return sb.toString();
-	}
-
-	public byte[] readOctetString() throws IOException
-	{
-		int type = readByte() & 0xff;
-
-		if (type != 0x04 && type != 0x03)
-			throw new IOException("Expected DER Octetstring, but found type " + type);
-		
-		int len = readLength();
-
-		if ((len < 0) || len > available())
-			throw new IOException("Illegal len in DER object (" + len  + ")");
-
-		byte[] b = readBytes(len);
-
-		return b;
-	}
-
-}