sun.security.krb5.Asn1Exception Java Examples

private static long toKerberosTime(String time) throws Asn1Exception {
    // ASN.1 GeneralizedTime format:

    // "19700101000000Z"
    //  |   | | | | | |
    //  0   4 6 8 | | |
    //           10 | |
    //             12 |
    //               14

    if (time.length() != 15)
        throw new Asn1Exception(Krb5.ASN1_BAD_TIMEFORMAT);
    if (time.charAt(14) != 'Z')
        throw new Asn1Exception(Krb5.ASN1_BAD_TIMEFORMAT);
    int year = Integer.parseInt(time.substring(0, 4));
    Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
    calendar.clear(); // so that millisecond is zero
    calendar.set(year,
                 Integer.parseInt(time.substring(4, 6)) - 1,
                 Integer.parseInt(time.substring(6, 8)),
                 Integer.parseInt(time.substring(8, 10)),
                 Integer.parseInt(time.substring(10, 12)),
                 Integer.parseInt(time.substring(12, 14)));
    return calendar.getTimeInMillis();
}
 

/**
 * Try parsing the data as a sequence of PA-DATA.
 * @param data the data block
 */
private void parsePAData(byte[] data)
        throws IOException, Asn1Exception {
    DerValue derPA = new DerValue(data);
    List<PAData> paList = new ArrayList<>();
    while (derPA.data.available() > 0) {
        // read the PA-DATA
        DerValue tmp = derPA.data.getDerValue();
        PAData pa_data = new PAData(tmp);
        paList.add(pa_data);
        if (DEBUG) {
            System.out.println(pa_data);
        }
    }
    pa = paList.toArray(new PAData[paList.size()]);
}
 

/**
 * Parse (unmarshal) a kerberostime from a DER input stream.  This form
 * parsing might be used when expanding a value which is part of
 * a constructed sequence and uses explicitly tagged type.
 *
 * @exception Asn1Exception on error.
 * @param data the Der input stream value, which contains
 *             one or more marshaled value.
 * @param explicitTag tag number.
 * @param optional indicates if this data field is optional
 * @return an instance of KerberosTime.
 *
 */
public static KerberosTime parse(
        DerInputStream data, byte explicitTag, boolean optional)
        throws Asn1Exception, IOException {
    if ((optional) && (((byte)data.peekByte() & (byte)0x1F)!= explicitTag))
        return null;
    DerValue der = data.getDerValue();
    if (explicitTag != (der.getTag() & (byte)0x1F))  {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    else {
        DerValue subDer = der.getData().getDerValue();
        Date temp = subDer.getGeneralizedTime();
        return new KerberosTime(temp.getTime(), 0);
    }
}
 

/**
 * Constructs a PAData object.
 * @param encoding a Der-encoded data.
 * @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 PAData(DerValue encoding) throws Asn1Exception, IOException {
    DerValue der = null;
    if (encoding.getTag() != DerValue.tag_Sequence) {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    der = encoding.getData().getDerValue();
    if ((der.getTag() & 0x1F) == 0x01) {
        this.pADataType = der.getData().getBigInteger().intValue();
    }
    else
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    der = encoding.getData().getDerValue();
    if ((der.getTag() & 0x1F) == 0x02) {
        this.pADataValue = der.getData().getOctetString();
    }
    if (encoding.getData().available() > 0)
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
 

/**
 * Encodes an KRBPriv object.
 * @return byte array of encoded EncAPRepPart 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 temp, bytes;
    temp = new DerOutputStream();
    temp.putInteger(BigInteger.valueOf(pvno));
    bytes = new DerOutputStream();
    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)0x03), encPart.asn1Encode());
    temp = new DerOutputStream();
    temp.write(DerValue.tag_Sequence, bytes);
    bytes = new DerOutputStream();
    bytes.write(DerValue.createTag(DerValue.TAG_APPLICATION, true, (byte)0x15), temp);
    return bytes.toByteArray();
}
 

private static long toKerberosTime(String time) throws Asn1Exception {
    // ASN.1 GeneralizedTime format:

    // "19700101000000Z"
    //  |   | | | | | |
    //  0   4 6 8 | | |
    //           10 | |
    //             12 |
    //               14

    if (time.length() != 15)
        throw new Asn1Exception(Krb5.ASN1_BAD_TIMEFORMAT);
    if (time.charAt(14) != 'Z')
        throw new Asn1Exception(Krb5.ASN1_BAD_TIMEFORMAT);
    int year = Integer.parseInt(time.substring(0, 4));
    Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
    calendar.clear(); // so that millisecond is zero
    calendar.set(year,
                 Integer.parseInt(time.substring(4, 6)) - 1,
                 Integer.parseInt(time.substring(6, 8)),
                 Integer.parseInt(time.substring(8, 10)),
                 Integer.parseInt(time.substring(10, 12)),
                 Integer.parseInt(time.substring(12, 14)));
    return calendar.getTimeInMillis();
}
 

/**
 * Encodes a Ticket object.
 * @return byte array of encoded ticket 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();
    DerValue der[] = new DerValue[4];
    temp.putInteger(BigInteger.valueOf(tkt_vno));
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x00), temp);
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x01), sname.getRealm().asn1Encode());
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x02), sname.asn1Encode());
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x03), encPart.asn1Encode());
    temp = new DerOutputStream();
    temp.write(DerValue.tag_Sequence, bytes);
    DerOutputStream ticket = new DerOutputStream();
    ticket.write(DerValue.createTag(DerValue.TAG_APPLICATION, true, (byte)0x01), temp);
    return ticket.toByteArray();
}
 

/**
 * Constructs an instance of AuthorizationDataEntry.
 * @param encoding a single DER-encoded value.
 */
public AuthorizationDataEntry(DerValue encoding) throws Asn1Exception, IOException {
    DerValue der;
    if (encoding.getTag() != DerValue.tag_Sequence) {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    der = encoding.getData().getDerValue();
    if ((der.getTag() & (byte) 0x1F) == (byte) 0x00) {
        adType = der.getData().getBigInteger().intValue();
    } else {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    der = encoding.getData().getDerValue();
    if ((der.getTag() & (byte) 0x1F) == (byte) 0x01) {
        adData = der.getData().getOctetString();
    } else {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    if (encoding.getData().available() > 0) {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
}
 

/**
 * Encodes an KRBPriv object.
 * @return byte array of encoded EncAPRepPart 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 temp, bytes;
    temp = new DerOutputStream();
    temp.putInteger(BigInteger.valueOf(pvno));
    bytes = new DerOutputStream();
    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)0x03), encPart.asn1Encode());
    temp = new DerOutputStream();
    temp.write(DerValue.tag_Sequence, bytes);
    bytes = new DerOutputStream();
    bytes.write(DerValue.createTag(DerValue.TAG_APPLICATION, true, (byte)0x15), temp);
    return bytes.toByteArray();
}
 

/**
 * Encodes an KRBSafeBody object.
 * @return the byte array of encoded KRBSafeBody 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.putOctetString(userData);
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x00), temp);
    if (timestamp != null)
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x01), timestamp.asn1Encode());
    if (usec != null) {
        temp = new DerOutputStream();
        temp.putInteger(BigInteger.valueOf(usec.intValue()));
        bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x02), temp);
    }
    if (seqNumber != null) {
        temp = new DerOutputStream();
        // encode as an unsigned integer (UInt32)
        temp.putInteger(BigInteger.valueOf(seqNumber.longValue()));
        bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x03), temp);
    }
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x04), sAddress.asn1Encode());
    if (rAddress != null)
    temp = new DerOutputStream();
    temp.write(DerValue.tag_Sequence, bytes);
    return temp.toByteArray();
}
 

/**
 * Encodes this object to an OutputStream.
 *
 * @return byte array of the encoded data.
 * @exception IOException if an I/O error occurs while reading encoded data.
 * @exception Asn1Exception on encoding errors.
 */
public byte[] asn1Encode() throws Asn1Exception, IOException {

    DerOutputStream bytes = new DerOutputStream();
    DerOutputStream temp = new DerOutputStream();

    temp.putInteger(pADataType);
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_PATYPE), temp);
    temp = new DerOutputStream();
    temp.putOctetString(pADataValue);
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, TAG_PAVALUE), temp);

    temp = new DerOutputStream();
    temp.write(DerValue.tag_Sequence, bytes);
    return temp.toByteArray();
}
 

/**
 * Initializes a Ticket object.
 * @param encoding a single DER-encoded value.
 * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data.
 * @exception IOException if an I/O error occurs while reading encoded data.
 * @exception KrbApErrException if the value read from the DER-encoded data stream does not match the pre-defined value.
 * @exception RealmException if an error occurs while parsing a Realm object.
 */

private void init(DerValue encoding) throws Asn1Exception,
RealmException, KrbApErrException, IOException {
    DerValue der;
    DerValue subDer;
    if (((encoding.getTag() & (byte)0x1F) != Krb5.KRB_TKT)
        || (encoding.isApplication() != true)
        || (encoding.isConstructed() != true))
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    der = encoding.getData().getDerValue();
    if (der.getTag() != DerValue.tag_Sequence)
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    subDer = der.getData().getDerValue();
    if ((subDer.getTag() & (byte)0x1F) != (byte)0x00)
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    tkt_vno = subDer.getData().getBigInteger().intValue();
    if (tkt_vno != Krb5.TICKET_VNO)
        throw new KrbApErrException(Krb5.KRB_AP_ERR_BADVERSION);
    Realm srealm = Realm.parse(der.getData(), (byte)0x01, false);
    sname = PrincipalName.parse(der.getData(), (byte)0x02, false, srealm);
    encPart = EncryptedData.parse(der.getData(), (byte)0x03, false);
    if (der.getData().available() > 0)
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
 

/**
 * Encodes this object to an OutputStream.
 *
 * @return byte array of the encoded data.
 * @exception IOException if an I/O error occurs while reading encoded data.
 * @exception Asn1Exception on encoding errors.
 */
public byte[] asn1Encode() throws Asn1Exception, IOException {

    DerOutputStream bytes = new DerOutputStream();
    DerOutputStream temp = new DerOutputStream();

    temp.putInteger(etype);
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true,
                                    TAG_TYPE), temp);

    if (salt != null) {
        temp = new DerOutputStream();
        if (KerberosString.MSNAME) {
            temp.putOctetString(salt.getBytes("UTF8"));
        } else {
            temp.putOctetString(salt.getBytes());
        }
        bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true,
                                    TAG_VALUE), temp);
    }

    temp = new DerOutputStream();
    temp.write(DerValue.tag_Sequence, bytes);
    return temp.toByteArray();
}
 

/**
 * Constructs a PAEncTSEnc object.
 * @param encoding a Der-encoded data.
 * @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 PAEncTSEnc(DerValue encoding) throws Asn1Exception, IOException {
    DerValue der;
    if (encoding.getTag() != DerValue.tag_Sequence) {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    pATimeStamp = KerberosTime.parse(encoding.getData(), (byte)0x00, false);
    if (encoding.getData().available() > 0) {
        der = encoding.getData().getDerValue();
        if ((der.getTag() & 0x1F) == 0x01) {
            pAUSec = new Integer(der.getData().getBigInteger().intValue());
        }
        else throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    if (encoding.getData().available() > 0)
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
 

/**
 * Parses (unmarshal) a host address from a DER input stream.  This form
 * parsing might be used when expanding a value which is part of
     * a constructed sequence and uses explicitly tagged type.
 *
 * @exception Asn1Exception on error.
 * @exception IOException if an I/O error occurs while reading encoded data.
 * @param data the Der input stream value, which contains one or more marshaled value.
 * @param explicitTag tag number.
 * @param optional indicates if this data field is optional
 * @return an instance of HostAddress.
 *
 */
public static HostAddress parse(DerInputStream data, byte explicitTag,
                                boolean optional)
    throws Asn1Exception, IOException{
    if ((optional) &&
        (((byte)data.peekByte() & (byte)0x1F) != explicitTag)) {
        return null;
    }
    DerValue der = data.getDerValue();
    if (explicitTag != (der.getTag() & (byte)0x1F))  {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    else {
        DerValue subDer = der.getData().getDerValue();
        return new HostAddress(subDer);
    }
}
 

/**
 * Constructs a LastReqEntry object.
 * @param encoding a Der-encoded data.
 * @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 LastReqEntry(DerValue encoding) throws Asn1Exception, IOException {
    if (encoding.getTag() != DerValue.tag_Sequence) {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    DerValue der;
    der = encoding.getData().getDerValue();
    if ((der.getTag() & 0x1F) == 0x00){
        lrType = der.getData().getBigInteger().intValue();
    }
    else
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);

    lrValue = KerberosTime.parse(encoding.getData(), (byte)0x01, false);
    if (encoding.getData().available() > 0)
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
 

/**
 * Constructs a PAData object.
 * @param encoding a Der-encoded data.
 * @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 PAData(DerValue encoding) throws Asn1Exception, IOException {
    DerValue der = null;
    if (encoding.getTag() != DerValue.tag_Sequence) {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    der = encoding.getData().getDerValue();
    if ((der.getTag() & 0x1F) == 0x01) {
        this.pADataType = der.getData().getBigInteger().intValue();
    }
    else
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    der = encoding.getData().getDerValue();
    if ((der.getTag() & 0x1F) == 0x02) {
        this.pADataValue = der.getData().getOctetString();
    }
    if (encoding.getData().available() > 0)
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
 

/**
 * Encodes an MethodData object.
 * @return the byte array of encoded MethodData 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(methodType));
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x00), temp);
    if (methodData != null) {
        temp = new DerOutputStream();
        temp.putOctetString(methodData);
        bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x01), temp);
    }

    temp = new DerOutputStream();
    temp.write(DerValue.tag_Sequence, bytes);
    return temp.toByteArray();
}
 

/**
 * Try parsing the data as a sequence of PA-DATA.
 * @param data the data block
 */
private void parsePAData(byte[] data)
        throws IOException, Asn1Exception {
    DerValue derPA = new DerValue(data);
    List<PAData> paList = new ArrayList<>();
    while (derPA.data.available() > 0) {
        // read the PA-DATA
        DerValue tmp = derPA.data.getDerValue();
        PAData pa_data = new PAData(tmp);
        paList.add(pa_data);
        if (DEBUG) {
            System.out.println(pa_data);
        }
    }
    pa = paList.toArray(new PAData[paList.size()]);
}
 

/**
 * Encodes an KRBSafe object.
 * @return byte array of encoded KRBSafe 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 temp = new DerOutputStream();
    DerOutputStream bytes = 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), safeBody.asn1Encode());
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x03), cksum.asn1Encode());
    temp = new DerOutputStream();
    temp.write(DerValue.tag_Sequence, bytes);
    bytes = new DerOutputStream();
    bytes.write(DerValue.createTag(DerValue.TAG_APPLICATION, true, (byte)0x14), temp);
    return bytes.toByteArray();
}
 

/**
 * Constructs a TransitedEncoding object.
 * @param encoding a Der-encoded data.
 * @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 TransitedEncoding(DerValue encoding) throws Asn1Exception, IOException {
    if (encoding.getTag() != DerValue.tag_Sequence) {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    DerValue der;
    der = encoding.getData().getDerValue();
    if ((der.getTag() & 0x1F) == 0x00) {
        trType = der.getData().getBigInteger().intValue();
    }
    else
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    der = encoding.getData().getDerValue();

    if ((der.getTag() & 0x1F) == 0x01) {
        contents = der.getData().getOctetString();
    }
    else
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    if (der.getData().available() > 0)
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
 

public KRBError(
                APOptions new_apOptions,
                KerberosTime new_cTime,
                Integer new_cuSec,
                KerberosTime new_sTime,
                Integer new_suSec,
                int new_errorCode,
                PrincipalName new_cname,
                PrincipalName new_sname,
                String new_eText,
                byte[] new_eData
                    ) throws IOException, Asn1Exception {
    pvno = Krb5.PVNO;
    msgType = Krb5.KRB_ERROR;
    cTime = new_cTime;
    cuSec = new_cuSec;
    sTime = new_sTime;
    suSec = new_suSec;
    errorCode = new_errorCode;
    cname = new_cname;
    sname = new_sname;
    eText = new_eText;
    eData = new_eData;

    parseEData(eData);
}
 

/**
 * Initializes a Ticket object.
 * @param encoding a single DER-encoded value.
 * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data.
 * @exception IOException if an I/O error occurs while reading encoded data.
 * @exception KrbApErrException if the value read from the DER-encoded data stream does not match the pre-defined value.
 * @exception RealmException if an error occurs while parsing a Realm object.
 */

private void init(DerValue encoding) throws Asn1Exception,
RealmException, KrbApErrException, IOException {
    DerValue der;
    DerValue subDer;
    if (((encoding.getTag() & (byte)0x1F) != Krb5.KRB_TKT)
        || (encoding.isApplication() != true)
        || (encoding.isConstructed() != true))
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    der = encoding.getData().getDerValue();
    if (der.getTag() != DerValue.tag_Sequence)
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    subDer = der.getData().getDerValue();
    if ((subDer.getTag() & (byte)0x1F) != (byte)0x00)
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    tkt_vno = subDer.getData().getBigInteger().intValue();
    if (tkt_vno != Krb5.TICKET_VNO)
        throw new KrbApErrException(Krb5.KRB_AP_ERR_BADVERSION);
    Realm srealm = Realm.parse(der.getData(), (byte)0x01, false);
    sname = PrincipalName.parse(der.getData(), (byte)0x02, false, srealm);
    encPart = EncryptedData.parse(der.getData(), (byte)0x03, false);
    if (der.getData().available() > 0)
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
 

/**
 * Encodes this object to an OutputStream.
 *
 * @return byte array of the encoded data.
 * @exception IOException if an I/O error occurs while reading encoded data.
 * @exception Asn1Exception on encoding errors.
 */
public byte[] asn1Encode() throws Asn1Exception, IOException {

    DerOutputStream bytes = new DerOutputStream();
    DerOutputStream temp = new DerOutputStream();

    temp.putInteger(etype);
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true,
                                    TAG_TYPE), temp);

    if (salt != null) {
        temp = new DerOutputStream();
        if (KerberosString.MSNAME) {
            temp.putOctetString(salt.getBytes("UTF8"));
        } else {
            temp.putOctetString(salt.getBytes());
        }
        bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true,
                                    TAG_VALUE), temp);
    }

    temp = new DerOutputStream();
    temp.write(DerValue.tag_Sequence, bytes);
    return temp.toByteArray();
}
 

/**
 * Encodes a Ticket object.
 * @return byte array of encoded ticket 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();
    DerValue der[] = new DerValue[4];
    temp.putInteger(BigInteger.valueOf(tkt_vno));
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x00), temp);
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x01), sname.getRealm().asn1Encode());
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x02), sname.asn1Encode());
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x03), encPart.asn1Encode());
    temp = new DerOutputStream();
    temp.write(DerValue.tag_Sequence, bytes);
    DerOutputStream ticket = new DerOutputStream();
    ticket.write(DerValue.createTag(DerValue.TAG_APPLICATION, true, (byte)0x01), temp);
    return ticket.toByteArray();
}
 

/**
 * Initializes an APRep object.
 * @param encoding a single DER-encoded value.
 * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data.
 * @exception IOException if an I/O error occurs while reading encoded data.
 * @exception KrbApErrException if the value read from the DER-encoded data
 *  stream does not match the pre-defined value.
 */
private void init(DerValue encoding) throws Asn1Exception,
        KrbApErrException, IOException {

    if (((encoding.getTag() & (byte) (0x1F)) != Krb5.KRB_AP_REP)
            || (encoding.isApplication() != true)
            || (encoding.isConstructed() != true)) {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    DerValue der = encoding.getData().getDerValue();
    if (der.getTag() != DerValue.tag_Sequence) {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    DerValue subDer = der.getData().getDerValue();
    if ((subDer.getTag() & (byte) 0x1F) != (byte) 0x00) {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    pvno = subDer.getData().getBigInteger().intValue();
    if (pvno != Krb5.PVNO) {
        throw new KrbApErrException(Krb5.KRB_AP_ERR_BADVERSION);
    }
    subDer = der.getData().getDerValue();
    if ((subDer.getTag() & (byte) 0x1F) != (byte) 0x01) {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
    msgType = subDer.getData().getBigInteger().intValue();
    if (msgType != Krb5.KRB_AP_REP) {
        throw new KrbApErrException(Krb5.KRB_AP_ERR_MSG_TYPE);
    }
    encPart = EncryptedData.parse(der.getData(), (byte) 0x02, false);
    if (der.getData().available() > 0) {
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    }
}
 

/**
 * Initializes an KRBSafe object.
 * @param encoding a single DER-encoded value.
 * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data.
 * @exception IOException if an I/O error occurs while reading encoded data.
 * @exception RealmException if an error occurs while parsing a Realm object.
 * @exception KrbApErrException if the value read from the DER-encoded data
 *  stream does not match the pre-defined value.
 */
private void init(DerValue encoding) throws Asn1Exception,
RealmException, KrbApErrException, IOException {
    DerValue der, subDer;
    if (((encoding.getTag() & (byte)0x1F) != (byte)0x14)
        || (encoding.isApplication() != true)
        || (encoding.isConstructed() != true))
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    der = encoding.getData().getDerValue();
    if (der.getTag() != DerValue.tag_Sequence)
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    subDer = der.getData().getDerValue();
    if ((subDer.getTag() & 0x1F) == 0x00) {
        pvno = subDer.getData().getBigInteger().intValue();
        if (pvno != Krb5.PVNO)
            throw new KrbApErrException(Krb5.KRB_AP_ERR_BADVERSION);
    }
    else
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    subDer = der.getData().getDerValue();
    if ((subDer.getTag() & 0x1F) == 0x01) {
        msgType = subDer.getData().getBigInteger().intValue();
        if (msgType != Krb5.KRB_SAFE)
            throw new KrbApErrException(Krb5.KRB_AP_ERR_MSG_TYPE);
    }

    else
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
    safeBody = KRBSafeBody.parse(der.getData(), (byte)0x02, false);
    cksum = Checksum.parse(der.getData(), (byte)0x03, false);
    if (der.getData().available() > 0)
        throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
 

/**
 * @serialData this {@code KeyImpl} is serialized by
 * writing out the ASN1 Encoded bytes of the encryption key.
 * The ASN1 encoding is defined in RFC4120 and as  follows:
 * EncryptionKey   ::= SEQUENCE {
 *          keytype    [0] Int32 -- actually encryption type --,
 *          keyvalue   [1] OCTET STRING
 * }
 */
private void writeObject(ObjectOutputStream ois)
            throws IOException {
    if (destroyed) {
       throw new IOException("This key is no longer valid");
    }

    try {
       ois.writeObject((new EncryptionKey(keyType, keyBytes)).asn1Encode());
    } catch (Asn1Exception ae) {
       throw new IOException(ae.getMessage());
    }
}
 

/**
     * Encodes a HostAddress object.
     * @return a byte array of encoded HostAddress 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(this.addrType);
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x00), temp);
    temp = new DerOutputStream();
    temp.putOctetString(address);
    bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x01), temp);
    temp = new DerOutputStream();
    temp.write(DerValue.tag_Sequence, bytes);
    return temp.toByteArray();
}
 

private void readObject(ObjectInputStream ois)
            throws IOException, ClassNotFoundException {
    try {
        EncryptionKey encKey = new EncryptionKey(new
                                 DerValue((byte[])ois.readObject()));
        keyType = encKey.getEType();
        keyBytes = encKey.getBytes();
    } catch (Asn1Exception ae) {
        throw new IOException(ae.getMessage());
    }
}