/* * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions.
*/
/** * @test * @bug 4844847 * @summary Test the Cipher.update/doFinal(ByteBuffer, ByteBuffer) methods * @author Andreas Sterbenz * @key randomness
*/
publicstaticvoid main(String[] args) throws Exception {
Provider p = Security.getProvider("SunJCE");
Random random = new Random(); int n = 10 * 1024; byte[] t = newbyte[n];
random.nextBytes(t);
privatestaticvoid crypt(Cipher cipher, ByteBuffer in, ByteBuffer out, byte[] outBytes, Random random) throws Exception {
in.clear();
out.clear();
out.put(newbyte[out.remaining()]);
out.clear(); int lim = in.limit();
in.limit(random.nextInt(lim));
cipher.update(in, out); if (in.hasRemaining()) { thrownew Exception("Buffer not consumed");
}
in.limit(lim);
cipher.doFinal(in, out); if (in.hasRemaining()) { thrownew Exception("Buffer not consumed");
}
out.flip(); byte[] b = newbyte[out.remaining()];
out.get(b); if (Arrays.equals(outBytes, b) == false) { thrownew Exception("Encryption output mismatch");
}
}
}
Messung V0.5
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Bemerkung:
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