/**
* Parse the given X.509 name into DER encoded byte array representation.
*
* @param the X.509 name in well known String format
* @return the X.509 name as byte array
* @exception IOException if the String could not be parsed
*/
private static byte[] parseX509Name(String data) throws IOException {
// TODO more test for illegal charateers
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
DEROutputStream derOutStream = new DEROutputStream(outStream);
derOutStream.writeObject(new X509Name(trimX509Name(data)));
derOutStream.close();
return outStream.toByteArray();
}
/**
* Returns the ASN.1 encoding of this object.
*
* @returns the ASN.1 encoding.
* @throws IOException if error occurs when constructing its ASN.1 encoding.
*/
public byte[] getEncoded() throws IOException {
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream dOut = new DEROutputStream(bOut);
dOut.writeObject(infoObj);
dOut.close();
return bOut.toByteArray();
}
/**
* Parse the given DNS name into DER encoded byte array representation. The String must be in den
* preffered name syntax as defined in RFC 1034.
*
* @param the DNS name in well known String format
* @return the DNS name as byte array
* @exception IOException if the String could not be parsed
*/
private static byte[] parseDNSName(String data) throws IOException {
// TODO more test for illegal charateers
ASN1Object derData = new DERIA5String(data);
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
DEROutputStream derOutStream = new DEROutputStream(outStream);
derOutStream.writeObject(derData);
derOutStream.close();
return outStream.toByteArray();
}
/**
* Parse the given URI into DER encoded byte array representation.
*
* @param the URI in well known String format
* @return the URI as byte array
* @exception IOException if the String could not be parsed
*/
private static byte[] parseURI(String data) throws IOException {
// TODO do parsing test
ASN1Object derData = new DERIA5String(data);
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
DEROutputStream derOutStream = new DEROutputStream(outStream);
derOutStream.writeObject(derData);
derOutStream.close();
return outStream.toByteArray();
}
/**
* Parse the given rfc822 addr-spec into DER encoded byte array representation.
*
* @param the rfc822 addr-spec in well known String format
* @return the rfc822 addr-spec as byte array
* @exception IOException if the String could not be parsed
*/
private static byte[] parseRfc822(String data) throws IOException {
int tmpInt = data.indexOf('@');
if (tmpInt < 0 || tmpInt >= data.length() - 1) {
throw new IOException("wrong format of rfc822Name:" + data);
}
// TODO more test for illegal charateers
ASN1Object derData = new DERIA5String(data);
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
DEROutputStream derOutStream = new DEROutputStream(outStream);
derOutStream.writeObject(derData);
derOutStream.close();
return outStream.toByteArray();
}
private AlgorithmParameters getParameters() throws NoSuchAlgorithmException {
AlgorithmParameters ap = AlgorithmParameters.getInstance(this.getAlgName());
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
DEROutputStream dOut = new DEROutputStream(bOut);
try {
dOut.writeObject(infoObj.getEncryptionAlgorithm().getParameters());
dOut.close();
ap.init(bOut.toByteArray());
} catch (IOException e) {
throw new NoSuchAlgorithmException("unable to parse parameters");
}
return ap;
}
/**
* Check the format of an OID.<br>
* Throw an IOException if the first component is not 0, 1 or 2 or the second component is greater
* than 39.<br>
* <br>
* User {@link org.bouncycastle.asn1.OIDTokenizer OIDTokenizer}
*
* @param the OID to be checked.
* @exception IOException if the first component is not 0, 1 or 2 or the second component is
* greater than 39.
*/
static byte[] parseOID(String oid) throws IOException {
OIDTokenizer tokenizer = new OIDTokenizer(oid);
String token;
if (!tokenizer.hasMoreTokens()) {
throw new IOException("OID contains no tokens");
}
token = tokenizer.nextToken();
if (token == null) {
throw new IOException("OID contains no tokens");
}
try {
int test = (Integer.valueOf(token)).intValue();
if (test < 0 || test > 2) {
throw new IOException("first token is not >= 0 and <=2");
}
if (!tokenizer.hasMoreTokens()) {
throw new IOException("OID contains only one token");
}
token = tokenizer.nextToken();
if (token == null) {
throw new IOException("OID contains only one token");
}
test = (Integer.valueOf(token)).intValue();
if (test < 0 || test > 39) {
throw new IOException("secon token is not >= 0 and <=39");
}
} catch (NumberFormatException ex) {
throw new IOException("token: " + token + ": " + ex.toString());
}
ASN1Object derData = new ASN1ObjectIdentifier(oid);
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
DEROutputStream derOutStream = new DEROutputStream(outStream);
derOutStream.writeObject(derData);
derOutStream.close();
return outStream.toByteArray();
}