/**
* Return the DER encoded form of the certificate pair.
*
* @return The encoded form of the certificate pair.
* @throws CerticateEncodingException If an encoding exception occurs.
*/
public byte[] getEncoded() throws CertificateEncodingException {
try {
if (encoded == null) {
DerOutputStream tmp = new DerOutputStream();
emit(tmp);
encoded = tmp.toByteArray();
}
} catch (IOException ex) {
throw new CertificateEncodingException(ex.toString());
}
return encoded;
}
/** Construct a key from its components. Used by the KeyFactory. */
ECPrivateKeyImpl(BigInteger s, ECParameterSpec params) throws InvalidKeyException {
this.s = s;
this.params = params;
// generate the encoding
algid = new AlgorithmId(AlgorithmId.EC_oid, ECParameters.getAlgorithmParameters(params));
try {
DerOutputStream out = new DerOutputStream();
out.putInteger(1); // version 1
byte[] privBytes = ECUtil.trimZeroes(s.toByteArray());
out.putOctetString(privBytes);
DerValue val = new DerValue(DerValue.tag_Sequence, out.toByteArray());
key = val.toByteArray();
} catch (IOException exc) {
// should never occur
throw new InvalidKeyException(exc);
}
}
/**
* Encodes a Checksum object. <xmp> Checksum ::= SEQUENCE { cksumtype [0] Int32, checksum [1]
* OCTET STRING } </xmp>
*
* <p>This definition reflects the Network Working Group RFC 4120 specification available at <a
* href="http://www.ietf.org/rfc/rfc4120.txt">http://www.ietf.org/rfc/rfc4120.txt</a>.
*
* @return byte array of enocded Checksum.
* @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();
temp.putInteger(BigInteger.valueOf(cksumType));
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x00), temp);
temp = new DerOutputStream();
temp.putOctetString(checksum);
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x01), temp);
temp = new DerOutputStream();
temp.write(DerValue.tag_Sequence, bytes);
return temp.toByteArray();
}
/**
* Returns a flat name representation for this object. The name format is defined in RFC 2743:
*
* <pre>
* Length Name Description
* 2 TOK_ID Token Identifier
* For exported name objects, this
* must be hex 04 01.
* 2 MECH_OID_LEN Length of the Mechanism OID
* MECH_OID_LEN MECH_OID Mechanism OID, in DER
* 4 NAME_LEN Length of name
* NAME_LEN NAME Exported name; format defined in
* applicable mechanism draft.
* </pre>
*
* Note that it is not required to canonicalize a name before calling export(). i.e., the name
* need not be an MN. If it is not an MN, an implementation defined algorithm can be used for
* choosing the mechanism which should export this name.
*
* @return the flat name representation for this object
* @exception GSSException with major codes NAME_NOT_MN, BAD_NAME, BAD_NAME, FAILURE.
*/
public byte[] export() throws GSSException {
if (mechElement == null) {
/* Use default mech */
mechElement = getElement(ProviderList.DEFAULT_MECH_OID);
}
byte[] mechPortion = mechElement.export();
byte[] oidBytes = null;
ObjectIdentifier oid = null;
try {
oid = new ObjectIdentifier(mechElement.getMechanism().toString());
} catch (IOException e) {
throw new GSSExceptionImpl(GSSException.FAILURE, "Invalid OID String ");
}
DerOutputStream dout = new DerOutputStream();
try {
dout.putOID(oid);
} catch (IOException e) {
throw new GSSExceptionImpl(GSSException.FAILURE, "Could not ASN.1 Encode " + oid.toString());
}
oidBytes = dout.toByteArray();
byte[] retVal = new byte[2 + 2 + oidBytes.length + 4 + mechPortion.length];
int pos = 0;
retVal[pos++] = 0x04;
retVal[pos++] = 0x01;
retVal[pos++] = (byte) (oidBytes.length >>> 8);
retVal[pos++] = (byte) oidBytes.length;
System.arraycopy(oidBytes, 0, retVal, pos, oidBytes.length);
pos += oidBytes.length;
retVal[pos++] = (byte) (mechPortion.length >>> 24);
retVal[pos++] = (byte) (mechPortion.length >>> 16);
retVal[pos++] = (byte) (mechPortion.length >>> 8);
retVal[pos++] = (byte) mechPortion.length;
System.arraycopy(mechPortion, 0, retVal, pos, mechPortion.length);
return retVal;
}
/* Translate to encoded bytes */
private void emit(DerOutputStream out) throws IOException, CertificateEncodingException {
DerOutputStream tagged = new DerOutputStream();
if (forward != null) {
DerOutputStream tmp = new DerOutputStream();
tmp.putDerValue(new DerValue(forward.getEncoded()));
tagged.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_FORWARD), tmp);
}
if (reverse != null) {
DerOutputStream tmp = new DerOutputStream();
tmp.putDerValue(new DerValue(reverse.getEncoded()));
tagged.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_REVERSE), tmp);
}
out.write(DerValue.tag_Sequence, tagged);
}
/**
* Encodes an APRep object.
*
* @return byte array of encoded APRep 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();
temp.putInteger(BigInteger.valueOf(pvno));
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x00), temp);
temp = new DerOutputStream();
temp.putInteger(BigInteger.valueOf(msgType));
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x01), temp);
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte) 0x02), encPart.asn1Encode());
temp = new DerOutputStream();
temp.write(DerValue.tag_Sequence, bytes);
DerOutputStream aprep = new DerOutputStream();
aprep.write(DerValue.createTag(DerValue.TAG_APPLICATION, true, (byte) 0x0F), temp);
return aprep.toByteArray();
}