/**
* Returns the encoded SPNEGO token Note: inserts the required CHOICE tags
*
* @return the encoded token
* @exception GSSException
*/
byte[] getEncoded() throws IOException, GSSException {
// get the token encoded value
DerOutputStream token = new DerOutputStream();
token.write(encode());
// now insert the CHOICE
switch (tokenType) {
case NEG_TOKEN_INIT_ID:
// Insert CHOICE of Negotiation Token
DerOutputStream initToken = new DerOutputStream();
initToken.write(
DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) NEG_TOKEN_INIT_ID), token);
return initToken.toByteArray();
case NEG_TOKEN_TARG_ID:
// Insert CHOICE of Negotiation Token
DerOutputStream targToken = new DerOutputStream();
targToken.write(
DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) NEG_TOKEN_TARG_ID), token);
return targToken.toByteArray();
default:
return token.toByteArray();
}
}
/**
* Encodes an EncTicketPart object.
*
* @return byte array of encoded EncTicketPart object.
* @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data.
* @exception IOException if an I/O error occurs while reading encoded data.
*/
public byte[] asn1Encode() throws Asn1Exception, IOException {
DerOutputStream bytes = new DerOutputStream();
DerOutputStream temp = new DerOutputStream();
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x00), flags.asn1Encode());
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x01), key.asn1Encode());
bytes.write(
DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x02), cname.getRealm().asn1Encode());
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x03), cname.asn1Encode());
bytes.write(
DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x04), transited.asn1Encode());
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x05), authtime.asn1Encode());
if (starttime != null) {
bytes.write(
DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x06), starttime.asn1Encode());
}
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x07), endtime.asn1Encode());
if (renewTill != null) {
bytes.write(
DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x08), renewTill.asn1Encode());
}
if (caddr != null) {
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x09), caddr.asn1Encode());
}
if (authorizationData != null) {
bytes.write(
DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x0A),
authorizationData.asn1Encode());
}
temp.write(DerValue.tag_Sequence, bytes);
bytes = new DerOutputStream();
bytes.write(DerValue.createTag(DerValue.TAG_APPLICATION, true, (byte) 0x03), temp);
return bytes.toByteArray();
}
/** Get the encoding of the key. */
public synchronized byte[] getEncoded() {
if (this.encodedKey == null) {
try {
DerOutputStream algid = new DerOutputStream();
// store oid in algid
algid.putOID(new ObjectIdentifier(DH_data));
// encode parameters
DerOutputStream params = new DerOutputStream();
params.putInteger(this.p);
params.putInteger(this.g);
if (this.l != 0) params.putInteger(this.l);
// wrap parameters into SEQUENCE
DerValue paramSequence = new DerValue(DerValue.tag_Sequence, params.toByteArray());
// store parameter SEQUENCE in algid
algid.putDerValue(paramSequence);
// wrap algid into SEQUENCE, and store it in key encoding
DerOutputStream tmpDerKey = new DerOutputStream();
tmpDerKey.write(DerValue.tag_Sequence, algid);
// store key data
tmpDerKey.putBitString(this.key);
// wrap algid and key into SEQUENCE
DerOutputStream derKey = new DerOutputStream();
derKey.write(DerValue.tag_Sequence, tmpDerKey);
this.encodedKey = derKey.toByteArray();
} catch (IOException e) {
return null;
}
}
return (byte[]) this.encodedKey.clone();
}
public static void main(String[] args) throws Exception {
s = new String("This is just a test!");
byte[] asciiBytes = s.getBytes("ASCII");
byte[] utf8Bytes = s.getBytes("UTF8");
byte[] iso8859_1Bytes = s.getBytes("ISO-8859-1");
byte[] unicodeBytes = s.getBytes("UnicodeBigUnmarked");
byte[] unicodeBytes2 = getBytes(s);
// test that unicode encoder is the correct one
if (!equalBytes(unicodeBytes, unicodeBytes2))
throw new Exception("Problem with unicode encoder being used.");
FileOutputStream fout = new FileOutputStream(fileName);
DerOutputStream derOut = new DerOutputStream();
System.out.println("Writing Java string out as various DER" + " encoded Strings now...");
derOut.putUTF8String(s);
derOut.putPrintableString(s);
derOut.putIA5String(s);
derOut.putT61String(s);
derOut.putBMPString(s);
derOut.derEncode(fout);
fout.close();
FileInputStream fis = new FileInputStream(fileName);
byte[] data = new byte[fis.available()];
fis.read(data);
DerInputStream derIn = new DerInputStream(data);
fis.close();
System.out.println("\nReading Strings back as DerValue's...\n");
DerValue der;
der = derIn.getDerValue();
verifyDER("UTF8", der, DerValue.tag_UTF8String, utf8Bytes);
der = derIn.getDerValue();
verifyDER("Printable", der, DerValue.tag_PrintableString, asciiBytes);
der = derIn.getDerValue();
verifyDER("IA5", der, DerValue.tag_IA5String, asciiBytes);
der = derIn.getDerValue();
verifyDER("T61", der, DerValue.tag_T61String, iso8859_1Bytes);
der = derIn.getDerValue();
verifyDER("BMP", der, DerValue.tag_BMPString, unicodeBytes);
if (derIn.available() > 0) throw new Exception("DerInputStream has extra data!");
derIn.reset();
System.out.println("Reading Strings back as Strings...\n");
verifyString("UTF8", derIn.getUTF8String());
verifyString("Printable", derIn.getPrintableString());
verifyString("IA5", derIn.getIA5String());
verifyString("T61", derIn.getT61String());
verifyString("BMP", derIn.getBMPString());
}