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The Bouncy Castle Java CMS and S/MIME APIs for handling the CMS and S/MIME protocols. This jar contains CMS and S/MIME APIs for JDK 1.5. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs. If the S/MIME API is used, the JavaMail API and the Java activation framework will also be needed.
package org.bouncycastle.sasn1;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.math.BigInteger;
/**
* @deprecated use corresponsding classes in org.bouncycastle.asn1.
*/
public class Asn1ObjectIdentifier
extends DerObject
{
private String _oid;
Asn1ObjectIdentifier(
int baseTag,
byte[] data)
throws IOException
{
super(baseTag, BerTag.OBJECT_IDENTIFIER, data);
StringBuffer objId = new StringBuffer();
long value = 0;
boolean first = true;
int b = 0;
BigInteger bigValue = null;
ByteArrayInputStream bIn = new ByteArrayInputStream(data);
while ((b = bIn.read()) >= 0)
{
if (value < 0x80000000000000L)
{
value = value * 128 + (b & 0x7f);
if ((b & 0x80) == 0) // end of number reached
{
if (first)
{
switch ((int)value / 40)
{
case 0:
objId.append('0');
break;
case 1:
objId.append('1');
value -= 40;
break;
default:
objId.append('2');
value -= 80;
}
first = false;
}
objId.append('.');
objId.append(value);
value = 0;
}
}
else
{
if (bigValue == null)
{
bigValue = BigInteger.valueOf(value);
}
bigValue = bigValue.shiftLeft(7);
bigValue = bigValue.or(BigInteger.valueOf(b & 0x7f));
if ((b & 0x80) == 0)
{
objId.append('.');
objId.append(bigValue);
bigValue = null;
value = 0;
}
}
}
this._oid = objId.toString();
}
public Asn1ObjectIdentifier(
String oid)
throws IllegalArgumentException
{
super(BerTagClass.UNIVERSAL, BerTag.OBJECT_IDENTIFIER, toByteArray(oid));
this._oid = oid;
}
public String toString()
{
return _oid;
}
public int hashCode()
{
return _oid.hashCode();
}
public boolean equals(
Object o)
{
if (!(o instanceof Asn1ObjectIdentifier))
{
return false;
}
return _oid.equals(((Asn1ObjectIdentifier)o)._oid);
}
private static void writeField(
OutputStream out,
long fieldValue)
throws IOException
{
if (fieldValue >= (1L << 7))
{
if (fieldValue >= (1L << 14))
{
if (fieldValue >= (1L << 21))
{
if (fieldValue >= (1L << 28))
{
if (fieldValue >= (1L << 35))
{
if (fieldValue >= (1L << 42))
{
if (fieldValue >= (1L << 49))
{
if (fieldValue >= (1L << 56))
{
out.write((int)(fieldValue >> 56) | 0x80);
}
out.write((int)(fieldValue >> 49) | 0x80);
}
out.write((int)(fieldValue >> 42) | 0x80);
}
out.write((int)(fieldValue >> 35) | 0x80);
}
out.write((int)(fieldValue >> 28) | 0x80);
}
out.write((int)(fieldValue >> 21) | 0x80);
}
out.write((int)(fieldValue >> 14) | 0x80);
}
out.write((int)(fieldValue >> 7) | 0x80);
}
out.write((int)fieldValue & 0x7f);
}
private static void writeField(
OutputStream out,
BigInteger fieldValue)
throws IOException
{
int byteCount = (fieldValue.bitLength()+6)/7;
if (byteCount == 0)
{
out.write(0);
}
else
{
BigInteger tmpValue = fieldValue;
byte[] tmp = new byte[byteCount];
for (int i = byteCount-1; i >= 0; i--)
{
tmp[i] = (byte) ((tmpValue.intValue() & 0x7f) | 0x80);
tmpValue = tmpValue.shiftRight(7);
}
tmp[byteCount-1] &= 0x7f;
out.write(tmp);
}
}
private static byte[] toByteArray(
String oid)
throws IllegalArgumentException
{
OIDTokenizer tok = new OIDTokenizer(oid);
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
try
{
writeField(bOut,
Integer.parseInt(tok.nextToken()) * 40
+ Integer.parseInt(tok.nextToken()));
while (tok.hasMoreTokens())
{
String token = tok.nextToken();
if (token.length() < 18)
{
writeField(bOut, Long.parseLong(token));
}
else
{
writeField(bOut, new BigInteger(token));
}
}
}
catch (NumberFormatException e)
{
throw new IllegalArgumentException("exception parsing field value: " + e.getMessage());
}
catch (IOException e)
{
throw new IllegalArgumentException("exception converting to bytes: " + e.getMessage());
}
return bOut.toByteArray();
}
private static class OIDTokenizer
{
private String oid;
private int index;
public OIDTokenizer(
String oid)
{
this.oid = oid;
this.index = 0;
}
public boolean hasMoreTokens()
{
return (index != -1);
}
public String nextToken()
{
if (index == -1)
{
return null;
}
String token;
int end = oid.indexOf('.', index);
if (end == -1)
{
token = oid.substring(index);
index = -1;
return token;
}
token = oid.substring(index, end);
index = end + 1;
return token;
}
}
}