Examples of NullCipher

ch.ethz.ssh2.crypto.cipher.NullCipher
NullCipher. @author Christian Plattner, plattner@inf.ethz.ch @version $Id: NullCipher.java,v 1.3 2005/12/07 10:25:48 cplattne Exp $
com.trilead.ssh2.crypto.cipher.NullCipher
NullCipher. @author Christian Plattner, plattner@inf.ethz.ch @version $Id: NullCipher.java,v 1.3 2005/12/07 10:25:48 cplattne Exp $
gnu.javax.crypto.cipher.NullCipher
javax.crypto.NullCipher
This class provides an identity cipher that does not transform the input data in any way. The encrypted data is identical to the plain text.

Examples of javax.crypto.NullCipher

     *
     * @param is
     *            the input stream to read data from.
     */
    protected CipherInputStream(InputStream is) {
        this(is, new NullCipher());
    }

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Examples of javax.crypto.NullCipher

     *
     * @param os
     *            the output stream to write the data to.
     */
    protected CipherOutputStream(OutputStream os) {
        this(os, new NullCipher());
    }

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Examples of javax.crypto.NullCipher


    /**
     * @com.intel.drl.spec_ref
     */
    protected CipherInputStream(InputStream is) {
        this(is, new NullCipher());
    }

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Examples of javax.crypto.NullCipher

     * (related to the InputStream) and that it returns -1 at the end of stream.
     */
    public void testRead1() throws Exception {
        byte[] data = new byte[] { -127, -100, -50, -10, -1, 0, 1, 10, 50, 127 };
        TestInputStream tis = new TestInputStream(data);
        CipherInputStream cis = new CipherInputStream(tis, new NullCipher());
        byte res;
        for (int i = 0; i < data.length; i++) {
            if ((res = (byte) cis.read()) != data[i]) {
                fail("read() returned the incorrect value. " + "Expected: "
                        + data[i] + ", Got: " + res + ".");

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Examples of javax.crypto.NullCipher

     * stream.
     */
    public void testRead2() throws Exception {
        byte[] data = new byte[] { -127, -100, -50, -10, -1, 0, 1, 10, 50, 127 };
        TestInputStream tis = new TestInputStream(data);
        CipherInputStream cis = new CipherInputStream(tis, new NullCipher());


        int expected = data.length;
        byte[] result = new byte[expected];


        int ind = 0; // index into the data array (to check the got data)

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Examples of javax.crypto.NullCipher

     * stream.
     */
    public void testRead3() throws Exception {
        byte[] data = new byte[] { -127, -100, -50, -10, -1, 0, 1, 10, 50, 127 };
        TestInputStream tis = new TestInputStream(data);
        CipherInputStream cis = new CipherInputStream(tis, new NullCipher());


        int expected = data.length;
        byte[] result = new byte[expected];


        int skip = 2;

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Examples of javax.crypto.NullCipher

     * bytes.
     */
    public void testSkip() throws Exception {
        byte[] data = new byte[] { -127, -100, -50, -10, -1, 0, 1, 10, 50, 127 };
        TestInputStream tis = new TestInputStream(data);
        CipherInputStream cis = new CipherInputStream(tis, new NullCipher());
        int expected = data.length;
        byte[] result = new byte[expected];


        int skipped = (int) cis.skip(2);
        int ind = skipped;

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Examples of javax.crypto.NullCipher

     * available() method testing. Tests that the method always return 0.
     */
    public void testAvailable() throws Exception {
        byte[] data = new byte[] { -127, -100, -50, -10, -1, 0, 1, 10, 50, 127 };
        TestInputStream tis = new TestInputStream(data);
        CipherInputStream cis = new CipherInputStream(tis, new NullCipher());
        assertEquals("The returned by available() method value "
                + "should be 0.", cis.available(), 0);
    }

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Examples of javax.crypto.NullCipher

     * method of the underlying input stream.
     */
    public void testClose() throws Exception {
        byte[] data = new byte[] { -127, -100, -50, -10, -1, 0, 1, 10, 50, 127 };
        TestInputStream tis = new TestInputStream(data);
        CipherInputStream cis = new CipherInputStream(tis, new NullCipher());
        cis.close();
        assertTrue("The close() method should call the close() method "
                + "of its underlying input stream.", tis.wasClosed());
    }

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Examples of javax.crypto.NullCipher

     * markSupported() method testing. Tests that mark is not supported.
     */
    public void testMarkSupported() {
        byte[] data = new byte[] {-127, -100, -50, -10, -1, 0, 1, 10, 50, 127};
        TestInputStream tis = new TestInputStream(data);
        CipherInputStream cis = new CipherInputStream(tis, new NullCipher());
        assertFalse("The returned by markSupported() method value "
                + "should be false.", cis.markSupported());
    }

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