Examples with DigestInputStream java.security.DigestInputStream used on opensource projects

Example 16 with DigestInputStream

use of java.security.DigestInputStream in project robovm by robovm.

the class DigestInputStreamTest method testSetMessageDigest.

/**
     * Test for <code>setMessageDigest()</code> method<br>
     *
     * Assertion: set associated message digest<br>
     */
public final void testSetMessageDigest() {
    for (int ii = 0; ii < algorithmName.length; ii++) {
        try {
            DigestInputStream dis = new DigestInputStream(null, null);
            MessageDigest md = MessageDigest.getInstance(algorithmName[ii]);
            dis.setMessageDigest(md);
            assertTrue(dis.getMessageDigest() == md);
            return;
        } catch (NoSuchAlgorithmException e) {
        // allowed failure
        }
    }
    fail(getName() + ": no MessageDigest algorithms available - test not performed");
}

Example 17 with DigestInputStream

use of java.security.DigestInputStream in project robovm by robovm.

the class DigestInputStreamTest method testRead01.

/**
     * Test #1 for <code>read()</code> method<br>
     *
     * Assertion: returns the byte read<br>
     * Assertion: updates associated digest<br>
     */
public final void testRead01() throws IOException {
    for (int ii = 0; ii < algorithmName.length; ii++) {
        try {
            MessageDigest md = MessageDigest.getInstance(algorithmName[ii]);
            InputStream is = new ByteArrayInputStream(myMessage);
            DigestInputStream dis = new DigestInputStream(is, md);
            for (int i = 0; i < MY_MESSAGE_LEN; i++) {
                // check that read() returns valid values
                assertTrue("retval", ((byte) dis.read() == myMessage[i]));
            }
            // check that associated digest has been updated properly
            assertTrue("update", Arrays.equals(dis.getMessageDigest().digest(), MDGoldenData.getDigest(algorithmName[ii])));
            return;
        } catch (NoSuchAlgorithmException e) {
        // allowed failure
        }
    }
    fail(getName() + ": no MessageDigest algorithms available - test not performed");
}

Example 18 with DigestInputStream

use of java.security.DigestInputStream in project robovm by robovm.

the class DigestInputStreamTest method testReadbyteArrayintint02.

/**
     * Test #2 for <code>read(byte[],int,int)</code> method<br>
     *
     * Assertion: returns the number of bytes read<br>
     *
     * Assertion: put bytes read into specified array at specified offset<br>
     *
     * Assertion: updates associated digest<br>
     */
public final void testReadbyteArrayintint02() throws IOException {
    // check precondition
    assertEquals(0, MY_MESSAGE_LEN % CHUNK_SIZE);
    for (int ii = 0; ii < algorithmName.length; ii++) {
        try {
            MessageDigest md = MessageDigest.getInstance(algorithmName[ii]);
            InputStream is = new ByteArrayInputStream(myMessage);
            DigestInputStream dis = new DigestInputStream(is, md);
            byte[] bArray = new byte[MY_MESSAGE_LEN];
            for (int i = 0; i < MY_MESSAGE_LEN / CHUNK_SIZE; i++) {
                // check that read(byte[],int,int) returns valid value
                assertTrue("retval", dis.read(bArray, i * CHUNK_SIZE, CHUNK_SIZE) == CHUNK_SIZE);
            }
            // check that bArray has been filled properly
            assertTrue("bArray", Arrays.equals(myMessage, bArray));
            // check that associated digest has been updated properly
            assertTrue("update", Arrays.equals(dis.getMessageDigest().digest(), MDGoldenData.getDigest(algorithmName[ii])));
            return;
        } catch (NoSuchAlgorithmException e) {
        // allowed failure
        }
    }
    fail(getName() + ": no MessageDigest algorithms available - test not performed");
}

Example 19 with DigestInputStream

use of java.security.DigestInputStream in project robovm by robovm.

the class DigestInputStreamTest method testRead03.

/**
     * Test #3 for <code>read()</code> method<br>
     * Test #1 for <code>on(boolean)</code> method<br>
     *
     * Assertion: <code>read()</code> must not update digest if it is off<br>
     * Assertion: <code>on(boolean)</code> turns digest functionality on
     * (if <code>true</code> passed as a parameter) or off (if <code>false</code>
     *  passed)
     */
public final void testRead03() throws IOException {
    for (int ii = 0; ii < algorithmName.length; ii++) {
        try {
            MessageDigest md = MessageDigest.getInstance(algorithmName[ii]);
            InputStream is = new ByteArrayInputStream(myMessage);
            DigestInputStream dis = new DigestInputStream(is, md);
            // turn digest off
            dis.on(false);
            for (int i = 0; i < MY_MESSAGE_LEN; i++) {
                dis.read();
            }
            // check that digest value has not been updated by read()
            assertTrue(Arrays.equals(dis.getMessageDigest().digest(), MDGoldenData.getDigest(algorithmName[ii] + "_NU")));
            return;
        } catch (NoSuchAlgorithmException e) {
        // allowed failure
        }
    }
    fail(getName() + ": no MessageDigest algorithms available - test not performed");
}

Example 20 with DigestInputStream

use of java.security.DigestInputStream in project robovm by robovm.

the class DigestInputStreamTest method testReadbyteArrayintint04.

/**
     * Test #4 for <code>read(byte[],int,int)</code> method<br>
     *
     * Assertion: returns the number of bytes read<br>
     *
     * Assertion: updates associated digest<br>
     */
public final void testReadbyteArrayintint04() throws IOException {
    for (int ii = 0; ii < algorithmName.length; ii++) {
        try {
            MessageDigest md = MessageDigest.getInstance(algorithmName[ii]);
            InputStream is = new ByteArrayInputStream(myMessage);
            DigestInputStream dis = new DigestInputStream(is, md);
            byte[] bArray = new byte[MY_MESSAGE_LEN];
            // read all but EOS
            dis.read(bArray, 0, bArray.length);
            // check that subsequent read(byte[],int,int) calls return -1 (EOS)
            assertEquals("retval1", -1, dis.read(bArray, 0, 1));
            assertEquals("retval2", -1, dis.read(bArray, 0, bArray.length));
            assertEquals("retval3", -1, dis.read(bArray, 0, 1));
            // check that 3 previous read() calls did not update digest
            assertTrue("update", Arrays.equals(dis.getMessageDigest().digest(), MDGoldenData.getDigest(algorithmName[ii])));
            return;
        } catch (NoSuchAlgorithmException e) {
        // allowed failure
        }
    }
    fail(getName() + ": no MessageDigest algorithms available - test not performed");
}