Examples of org.apache.harmony.security.asn1.ASN1Choice

Package org.apache.harmony.security.asn1

Examples of org.apache.harmony.security.asn1.ASN1Choice

org.apache.harmony.security.asn1.ASN1Choice
etf.org/rfc/rfc3280.txt) Time ::= CHOICE { utcTime UTCTime, generalTime GeneralizedTime } Validity ::= SEQUENCE { notBefore Time, notAfter Time } 1)First approach: No application class to represent ASN.1 Time notation The Time notation is a choice of different time formats: UTC and Generalized. Both of them are mapped to java.util.Date object, so an application class that represents ASN.1 Validity notation may keep values as Date objects. So a custom ASN.1 Time choice type should map its notation to Date object. class Time { // custom ASN.1 choice class: maps Time to is notation public static final ASN1Choice asn1 = new ASN1Choice(new ASN1Type[] { ASN1GeneralizedTime.asn1, ASN1UTCTime.asn1 }) { public int getIndex(java.lang.Object object) { return 0; // always encode as ASN1GeneralizedTime } public Object getObjectToEncode(Object object) { // A value to be encoded value is a Date object // pass it to custom time class return object; } }; } class Validity { private Date notBefore; // choice as Date private Date notAfter; // choice as Date ... // constructors and other methods go here // custom ASN.1 sequence class: maps Validity class to is notation public static final ASN1Sequence ASN1 = new ASN1Sequence(new ASN1Type[] {Time.asn1, Time.asn1 }) { protected Object getObject(Object[] values) { // ASN.1 Time choice passed Data object - use it return new Validity((Date) values[0], (Date) values[1]); } protected void getValues(Object object, Object[] values) { Validity validity = (Validity) object; // pass Date objects to ASN.1 Time choice values[0] = validity.notBefore; values[1] = validity.notAfter; } } } 2)Second approach: There is an application class to represent ASN.1 Time notation If it is a matter what time format should be used to decode/encode Date objects a class to represent ASN.1 Time notation must be created. For example, class Time { private Date utcTime; private Date gTime; ... // constructors and other methods go here // custom ASN.1 choice class: maps Time to is notation public static final ASN1Choice asn1 = new ASN1Choice(new ASN1Type[] { ASN1GeneralizedTime.asn1, ASN1UTCTime.asn1 }) { public Object getDecodedObject(BerInputStream in) { // create Time object to pass as decoded value Time time = new Time(); if (in.choiceIndex==0) { // we decoded GeneralizedTime // store decoded Date value in corresponding field time.gTime = in.content; // return it return time; } else { // we decoded UTCTime // store decoded Date value in corresponding field time.utcTime = in.content; // return it return time; } } public int getIndex(java.lang.Object object) { Time time = (Time)object; if(time.utcTime!=null){ // encode Date as UTCTime return 1; } else { // otherwise encode Date as GeneralizedTime return 0; } } public Object getObjectToEncode(Object object) { Time time = (Time)object; if(time.utcTime!=null){ // encode Date as UTCTime return 1; } else { // otherwise encode Date as GeneralizedTime return 0; } } }; } So now Validity class must keep all values in Time object and its custom ASN.1 sequence class must handle this class of objects class Validity { private Time notBefore; // now it is a Time!!! private Time notAfter; // now it is a Time!!! ... // constructors and other methods go here // custom ASN.1 sequence class: maps Validity class to is notation public static final ASN1Sequence ASN1 = new ASN1Sequence(new ASN1Type[] {Time.asn1, Time.asn1 }) { protected Object getObject(Object[] values) { // We've gotten Time objects here !!! return new Validity((Time) values[0], (Time) values[1]); } protected void getValues(Object object, Object[] values) { Validity validity = (Validity) object; // pass Time objects to ASN.1 Time choice values[0] = validity.notBefore; values[1] = validity.notAfter; } } } @see http://asn1.elibel.tm.fr/en/standards/index.htm

  crlEntry_ = new ASN1Sequence();
  userCertificate_ = new ASN1Integer();


  crlEntry_.add(userCertificate_);


  revocationDate_ = new ASN1Choice();
  revocationDate_.addType(new ASN1UTCTime());
  revocationDate_.addType(new ASN1GeneralizedTime());


  crlEntry_.add(revocationDate_);

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  issuer_ = new codec.x501.Name();
  add(issuer_);


  ASN1Sequence validity = new ASN1Sequence();
  notBefore_ = new ASN1Choice();
  notBefore_.addType(new ASN1UTCTime());
  notBefore_.addType(new ASN1GeneralizedTime());
  validity.add(notBefore_);
  notAfter_ = new ASN1Choice();
  notAfter_.addType(new ASN1UTCTime());
  notAfter_.addType(new ASN1GeneralizedTime());
  validity.add(notAfter_);
  add(validity);

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  TBSCertList.add(signatureAlgorithm);


  issuer = new codec.x501.Name();
  TBSCertList.add(issuer);


  thisUpdate = new ASN1Choice();
  thisUpdate.addType(new ASN1UTCTime());
  thisUpdate.addType(new ASN1GeneralizedTime());
  TBSCertList.add(thisUpdate);


  nextUpdate = new ASN1Choice();
  nextUpdate.setOptional(true);
  nextUpdate.addType(new ASN1UTCTime());
  nextUpdate.addType(new ASN1GeneralizedTime());


  TBSCertList.add(nextUpdate);

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  TBSCertList.add(signatureAlgorithm);


  issuer = new codec.x501.Name();
  TBSCertList.add(issuer);


  thisUpdate = new ASN1Choice();
  thisUpdate.addType(new ASN1UTCTime());
  thisUpdate.addType(new ASN1GeneralizedTime());
  TBSCertList.add(thisUpdate);


  /*

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                    new byte[] { 0x03, 0x02, 0x07, (byte) 0x80 } } };


    public void testDecode_Encode() throws IOException {


        // decoder/encoder for testing
        ASN1BitString asn1 = ASN1BitString.getInstance();


        // decode from byte array
        for (int i = 0; i < validBitstring.length; i++) {
            DerInputStream in = new DerInputStream(
                    (byte[]) validBitstring[i][1]);


            BitString expected = (BitString) validBitstring[i][0];
            BitString decoded = (BitString) asn1.decode(in);


            assertEquals("Testcase: " + i, expected.unusedBits,
                    decoded.unusedBits);


            assertTrue("Testcase: " + i, Arrays.equals(expected.bytes,
                    decoded.bytes));
        }


        // decode from input stream
        for (int i = 0; i < validBitstring.length; i++) {
            DerInputStream in = new DerInputStream(new ByteArrayInputStream(
                    (byte[]) validBitstring[i][1]));


            BitString expected = (BitString) validBitstring[i][0];
            BitString decoded = (BitString) asn1.decode(in);


            assertEquals("Testcase: " + i, expected.unusedBits,
                    decoded.unusedBits);


            assertTrue("Testcase: " + i, Arrays.equals(expected.bytes,

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                {
                        new boolean[] { false, false, false, false, false,
                                false, false, false, true }, // object
                        new byte[] { 0x03, 0x03, 0x07, 0x00, (byte) 0x80 } } };


        ASN1NamedBitList decoder = new ASN1NamedBitList();


        for (int i = 0; i < testcaseBoolean.length; i++) {
            DerInputStream in = new DerInputStream(
                    (byte[]) testcaseBoolean[i][1]);


            assertTrue("Testcase: " + i, Arrays.equals(
                    (boolean[]) testcaseBoolean[i][0], (boolean[]) decoder
                            .decode(in)));
        }
    }

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                {
                        new boolean[] { false, false, false, false, false,
                                false, false, false, true }, // object
                        new byte[] { 0x03, 0x03, 0x07, 0x00, (byte) 0x80 } } };


        ASN1NamedBitList decoder = new ASN1NamedBitList(8);


        for (int i = 0; i < testcaseBoolean.length; i++) {
            DerInputStream in = new DerInputStream(
                    (byte[]) testcaseBoolean[i][1]);


            assertTrue("Testcase: " + i, Arrays.equals(
                    (boolean[]) testcaseBoolean[i][0], (boolean[]) decoder
                            .decode(in)));
        }
    }

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                {
                        new boolean[] { false, false, false, false, false,
                                false, false, false, true }, // object
                        new byte[] { 0x03, 0x03, 0x07, 0x00, (byte) 0x80 } } };


        ASN1NamedBitList encoder = new ASN1NamedBitList();


        for (int i = 0; i < testcaseBoolean.length; i++) {
            DerOutputStream out = new DerOutputStream(encoder,
                    testcaseBoolean[i][0]);
            assertTrue("Testcase: " + i, Arrays.equals(

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    private static byte[] eTrue = new byte[] { 0x01, 0x01, (byte) 0xFF };


    public void test_Decode_Encode() throws IOException {


        // oid decoder/encoder for testing
        ASN1Boolean asn1 = ASN1Boolean.getInstance();


        // decoding false
        DerInputStream in = new DerInputStream(eFalse);
        assertEquals("Decoding false value", Boolean.FALSE, asn1.decode(in));


        // decoding true
        in = new DerInputStream(eTrue);
        assertEquals("Decoding true value", Boolean.TRUE, asn1.decode(in));


        // encoding false
        DerOutputStream out = new DerOutputStream(asn1, Boolean.FALSE);
        assertTrue("Encoding false value", Arrays.equals(eFalse, out.encoded));

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        }
    }


    public void testChoiceInSequenceOf() throws IOException {


        ASN1Choice choice = new ASN1Choice(new ASN1Type[] {
                ASN1Boolean.getInstance(), ASN1Integer.getInstance() }) {


            public int getIndex(Object object) {
                if (object instanceof Boolean) {
                    return 0; // ASN1Boolean

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