/** * 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); } }
/** * 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 an instance of Checksum from an ASN.1 encoded representation. * * @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. */ private Checksum(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) { cksumType = der.getData().getBigInteger().intValue(); } else throw new Asn1Exception(Krb5.ASN1_BAD_ID); der = encoding.getData().getDerValue(); if ((der.getTag() & (byte) 0x1F) == (byte) 0x01) { checksum = der.getData().getOctetString(); } else throw new Asn1Exception(Krb5.ASN1_BAD_ID); if (encoding.getData().available() > 0) { throw new Asn1Exception(Krb5.ASN1_BAD_ID); } }
/** * Constructs a MethodData 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 MethodData(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() & 0x1F) == 0x00) { BigInteger bint = der.getData().getBigInteger(); methodType = bint.intValue(); } else throw new Asn1Exception(Krb5.ASN1_BAD_ID); if (encoding.getData().available() > 0) { der = encoding.getData().getDerValue(); if ((der.getTag() & 0x1F) == 0x01) { methodData = der.getData().getOctetString(); } else throw new Asn1Exception(Krb5.ASN1_BAD_ID); } if (encoding.getData().available() > 0) throw new Asn1Exception(Krb5.ASN1_BAD_ID); }
/** * Parse (unmarshal) a realm 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 indicate if this data field is optional * @return an instance of Realm. */ public static Realm parse(DerInputStream data, byte explicitTag, boolean optional) throws Asn1Exception, IOException, RealmException { 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 Realm(subDer); } }
/** * Returns the ASN.1 encoding of the <xmp> PrincipalName ::= SEQUENCE { name-type [0] Int32, * name-string [1] SEQUENCE OF KerberosString } * * <p>KerberosString ::= GeneralString (IA5String) </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>. * * @param encoding a Der-encoded data. * @param realm the realm for this name * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data. * @exception Asn1Exception if there is an ASN1 encoding error * @exception IOException if an I/O error occurs * @exception IllegalArgumentException if encoding is null reading encoded data. */ public PrincipalName(DerValue encoding, Realm realm) throws Asn1Exception, IOException { if (realm == null) { throw new IllegalArgumentException("Null realm not allowed"); } nameRealm = realm; DerValue der; if (encoding == null) { throw new IllegalArgumentException("Null encoding not allowed"); } if (encoding.getTag() != DerValue.tag_Sequence) { throw new Asn1Exception(Krb5.ASN1_BAD_ID); } der = encoding.getData().getDerValue(); if ((der.getTag() & 0x1F) == 0x00) { BigInteger bint = der.getData().getBigInteger(); nameType = bint.intValue(); } else { throw new Asn1Exception(Krb5.ASN1_BAD_ID); } der = encoding.getData().getDerValue(); if ((der.getTag() & 0x01F) == 0x01) { DerValue subDer = der.getData().getDerValue(); if (subDer.getTag() != DerValue.tag_SequenceOf) { throw new Asn1Exception(Krb5.ASN1_BAD_ID); } Vector<String> v = new Vector<>(); DerValue subSubDer; while (subDer.getData().available() > 0) { subSubDer = subDer.getData().getDerValue(); String namePart = new KerberosString(subSubDer).toString(); v.addElement(namePart); } nameStrings = new String[v.size()]; v.copyInto(nameStrings); validateNameStrings(nameStrings); } else { throw new Asn1Exception(Krb5.ASN1_BAD_ID); } }
private void init(DerValue encoding) throws Asn1Exception, IOException, RealmException { DerValue der, subDer; renewTill = null; caddr = null; authorizationData = null; if (((encoding.getTag() & (byte) 0x1F) != (byte) 0x03) || (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); } flags = TicketFlags.parse(der.getData(), (byte) 0x00, false); key = EncryptionKey.parse(der.getData(), (byte) 0x01, false); Realm crealm = Realm.parse(der.getData(), (byte) 0x02, false); cname = PrincipalName.parse(der.getData(), (byte) 0x03, false, crealm); transited = TransitedEncoding.parse(der.getData(), (byte) 0x04, false); authtime = KerberosTime.parse(der.getData(), (byte) 0x05, false); starttime = KerberosTime.parse(der.getData(), (byte) 0x06, true); endtime = KerberosTime.parse(der.getData(), (byte) 0x07, false); if (der.getData().available() > 0) { renewTill = KerberosTime.parse(der.getData(), (byte) 0x08, true); } if (der.getData().available() > 0) { caddr = HostAddresses.parse(der.getData(), (byte) 0x09, true); } if (der.getData().available() > 0) { authorizationData = AuthorizationData.parse(der.getData(), (byte) 0x0A, true); } if (der.getData().available() > 0) { throw new Asn1Exception(Krb5.ASN1_BAD_ID); } }
/** * Parse (unmarshal) a <code>PrincipalName</code> 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 indicate if this data field is optional * @param realm the realm for the name * @return an instance of <code>PrincipalName</code>, or null if the field is optional and * missing. */ public static PrincipalName parse( DerInputStream data, byte explicitTag, boolean optional, Realm realm) throws Asn1Exception, IOException, RealmException { 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(); if (realm == null) { realm = Realm.getDefault(); } return new PrincipalName(subDer, realm); } }