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.ASN1SequenceOf
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

     * Tests decoding/encoding integers to/from byte array
     */
    public void testDecode_Encode() throws IOException {


        // oid decoder/encoder for testing
        ASN1Integer asn1 = ASN1Integer.getInstance();


        // decode from byte array
        for (int i = 0; i < validTestcase.length; i++) {
            DerInputStream in = new DerInputStream((byte[]) validTestcase[i][2]);
            assertTrue((validTestcase[i][0]).toString(), // message
                    Arrays.equals((byte[]) validTestcase[i][1], // expected
                            (byte[]) asn1.decode(in))); // returned
        }
        
        // decode from input stream
        for (int i = 0; i < validTestcase.length; i++) {
            DerInputStream in = new DerInputStream(new ByteArrayInputStream(
                    (byte[]) validTestcase[i][2]));
            assertTrue((validTestcase[i][0]).toString(), //message
                    Arrays.equals((byte[]) validTestcase[i][1], //expected
                            (byte[]) asn1.decode(in))); //returned
        }


        // encoding
        for (int i = 0; i < validTestcase.length; i++) {
            DerOutputStream out = new DerOutputStream(asn1, validTestcase[i][1]);

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                    new byte[] { 0x06, 0x03, (byte) 0x81, 0x34, 0x03 } } };


    public void test_MappingToIntArray() throws IOException {


        // oid decoder/encoder for testing
        ASN1Oid asn1 = ASN1Oid.getInstance();


        // testing decoding
        for (int i = 0; i < oid.length; i++) {


            int[] decoded = (int[]) asn1.decode(new DerInputStream(
                    (byte[]) oid[i][2]));


            assertTrue("Failed to decode oid: " + oid[i][0], // error message
                    Arrays.equals((int[]) oid[i][1], // expected array
                            decoded));

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    }


    public void test_MappingToString() throws IOException {


        // oid decoder/encoder for testing
        ASN1Oid asn1 = ASN1Oid.getInstanceForString();
        
        // testing decoding
        for (int i = 0; i < oid.length; i++) {
            assertEquals("Failed to decode oid: " + oid[i][0], // error message
                    oid[i][0], // expected string
                    asn1.decode(new DerInputStream((byte[]) oid[i][2])));
        }


        // testing encoding
        for (int i = 0; i < oid.length; i++) {
            assertTrue("Failed to encode oid: " + oid[i][0], // error message

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                while (it.hasNext()) {
                    oa[id] = ASN1Oid.getInstanceForString();
                    val[id++] = (String) it.next();
                }
                return ASN1OctetString.getInstance().encode(
                    new ASN1Sequence(oa).encode(val));
            }
            if ("2.5.29.19".equals(oid)) {
                return ASN1OctetString.getInstance().encode(
                            new ASN1Sequence(
                                    new ASN1Type[] {
                                            ASN1Boolean.getInstance(),
                                            ASN1Integer.getInstance()
                                    }).encode(
                                           new Object[] {

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        //


        defaultList = new ArrayList();
        defaultList.add(Boolean.FALSE);


        sequence = new ASN1Sequence(new ASN1Type[] { ASN1Boolean.getInstance(),
                sequenceOf }) {
            {
                setDefault(Boolean.TRUE, 0);
                setDefault(defaultList, 1);
            }

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        }
    }


    public void testVerify() throws IOException {


        ASN1Sequence seqVerify = new ASN1Sequence(new ASN1Type[] {
                ASN1Boolean.getInstance(), sequenceOf }) {
            {
                setDefault(Boolean.TRUE, 0);
                setDefault(defaultList, 1);
            }


            protected Object getDecodedObject(BerInputStream in)
                    throws IOException {
                throw new IOException(
                        "Method getDecodedObject MUST not be invoked");
            }
        };


        for (int i = 0; i < testcases.length; i++) {
            DerInputStream in = new DerInputStream((byte[]) testcases[i][1]);
            in.setVerify();
            seqVerify.decode(in);
        }
    }

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    public void testEncodeDefault() throws IOException {


        //
        // Boolean as default
        //
        ASN1Sequence s = new ASN1Sequence(new ASN1Type[] { ASN1Boolean
                .getInstance() }) {
            {
                setDefault(Boolean.TRUE, 0);
            }


            protected void getValues(Object object, Object[] values) {
                values = (Object[]) object;
            }
        };


        byte[] expectedArray = new byte[] { 0x30, 0x00 };


        byte[] encoded = s.encode(new Object[] { Boolean.TRUE });
        assertTrue("Encoded boolean:", Arrays.equals(expectedArray, encoded));


        //
        // Integer as default
        //
        s = new ASN1Sequence(new ASN1Type[] { ASN1Integer.getInstance() }) {
            {
                setDefault(new byte[] { 0x01 }, 0);
            }


            protected void getValues(Object object, Object[] values) {
                values = (Object[]) object;
            }
        };


        encoded = s.encode(new Object[] { new byte[] { 0x01 } });
        assertTrue("Encoded integer:", Arrays.equals(expectedArray, encoded));
    }

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    public void testEncodeOptional() throws IOException {


        //
        // Test not optional
        //
        ASN1Sequence s = new ASN1Sequence(new ASN1Type[] { ASN1Boolean
                .getInstance() }) {


            protected void getValues(Object object, Object[] values) {
                values[0] = ((Object[]) object)[0];
            }
        };


        try {
            s.encode(new Object[] { null });
            fail("No expected RuntimeException"); 
        } catch (RuntimeException e) {
        }


        //
        // Test optional
        //
        s = new ASN1Sequence(new ASN1Type[] { ASN1Boolean.getInstance() }) {
            {
                setOptional(0);
            }


            protected void getValues(Object object, Object[] values) {
                values[0] = ((Object[]) object)[0];
            }
        };


        byte[] expectedArray = new byte[] { 0x30, 0x00 };


        byte[] encoded = s.encode(new Object[] { null });
        assertTrue("Encoded boolean:", Arrays.equals(expectedArray, encoded));
    }

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                while (it.hasNext()) {
                    oa[id] = ASN1Oid.getInstanceForString();
                    val[id++] = (String) it.next();
                }
                return ASN1OctetString.getInstance().encode(
                    new ASN1Sequence(oa).encode(val));
            }
            if ("2.5.29.19".equals(oid)) {
                return ASN1OctetString.getInstance().encode(
                            new ASN1Sequence(
                                    new ASN1Type[] {
                                            ASN1Boolean.getInstance(),
                                            ASN1Integer.getInstance()
                                    }).encode(
                                           new Object[] {

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        }
    }


    public void testVerify() throws IOException {


        ASN1SequenceOf seqVerify = new ASN1SequenceOf(ASN1Boolean.getInstance()) {


            public Object getDecodedObject(BerInputStream in)
                    throws IOException {
                throw new IOException(
                        "Method getDecodedObject MUST not be invoked");
            }
        };


        for (int i = 0; i < testcases.length; i++) {
            DerInputStream in = new DerInputStream((byte[]) testcases[i][1]);
            in.setVerify();
            seqVerify.decode(in);
        }
    }

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