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/*
* Copyright (c) 2011, 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 7031343
* @summary Provide API changes to support GCM AEAD ciphers
* @author Brad Wetmore
*/
import javax.crypto.AEADBadTagException;
import javax.crypto.spec.GCMParameterSpec;
import java.util.Arrays;
public class GCMParameterSpecTest {
// 16 elements
private static byte[] bytes = new byte[] {
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f };
private static int failed = 0;
public static void main(String[] args) throws Exception {
newGCMParameterSpecFail(-1, bytes);
newGCMParameterSpecFail(128, null);
newGCMParameterSpecPass(128, bytes);
newGCMParameterSpecFail(-1, bytes, 2, 4);
newGCMParameterSpecFail(128, null, 2, 4);
newGCMParameterSpecFail(128, bytes, -2, 4);
newGCMParameterSpecFail(128, bytes, 2, -4);
newGCMParameterSpecFail(128, bytes, 2, 15); // one too many
newGCMParameterSpecPass(128, bytes, 2, 14); // ok.
newGCMParameterSpecPass(96, bytes, 4, 4);
newGCMParameterSpecPass(96, bytes, 0, 0);
// Might as well check the Exception constructors.
try {
new AEADBadTagException();
new AEADBadTagException("Bad Tag Seen");
} catch (Exception e) {
e.printStackTrace();
failed++;
}
if (failed != 0) {
throw new Exception("Test(s) failed");
}
}
private static void newGCMParameterSpecPass(
int tLen, byte[] src) {
try {
GCMParameterSpec gcmps = new GCMParameterSpec(tLen, src);
if (gcmps.getTLen() != tLen) {
throw new Exception("tLen's not equal");
}
if (!Arrays.equals(gcmps.getIV(), src)) {
throw new Exception("IV's not equal");
}
} catch (Exception e) {
e.printStackTrace();
failed++;
}
}
private static void newGCMParameterSpecFail(
int tLen, byte[] src) {
try {
new GCMParameterSpec(tLen, src);
new Exception("Didn't Fail as Expected").printStackTrace();
failed++;
} catch (IllegalArgumentException e) {
// swallow
}
}
private static void newGCMParameterSpecPass(
int tLen, byte[] src, int offset, int len) {
try {
GCMParameterSpec gcmps =
new GCMParameterSpec(tLen, src, offset, len);
if (gcmps.getTLen() != tLen) {
throw new Exception("tLen's not equal");
}
if (!Arrays.equals(gcmps.getIV(),
Arrays.copyOfRange(src, offset, offset + len))) {
System.out.println(offset + " " + len);
System.out.println(Arrays.copyOfRange(src, offset, len)[0]);
throw new Exception("IV's not equal");
}
} catch (Exception e) {
e.printStackTrace();
failed++;
}
}
private static void newGCMParameterSpecFail(
int tLen, byte[] src, int offset, int len) {
try {
new GCMParameterSpec(tLen, src, offset, len);
new Exception("Didn't Fail as Expected").printStackTrace();
failed++;
} catch (IllegalArgumentException e) {
// swallow
}
}
}
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