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/*
* Copyright (c) 2012, 2014, 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.
*
*/
/**
* @author Tom Deneau
*/
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.GCMParameterSpec;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.security.AlgorithmParameters;
import java.util.Random;
import java.util.Arrays;
abstract public class TestAESBase {
int msgSize = Integer.getInteger("msgSize", 646);
boolean checkOutput = Boolean.getBoolean("checkOutput");
boolean noReinit = Boolean.getBoolean("noReinit");
boolean testingMisalignment;
private static final int ALIGN = 8;
int encInputOffset = Integer.getInteger("encInputOffset", 0) % ALIGN;
int encOutputOffset = Integer.getInteger("encOutputOffset", 0) % ALIGN;
int decOutputOffset = Integer.getInteger("decOutputOffset", 0) % ALIGN;
int lastChunkSize = Integer.getInteger("lastChunkSize", 32);
int keySize = Integer.getInteger("keySize", 128);
int inputLength;
int encodeLength;
int decodeLength;
int decodeMsgSize;
String algorithm = System.getProperty("algorithm", "AES");
String mode = System.getProperty("mode", "CBC");
String paddingStr = System.getProperty("paddingStr", "PKCS5Padding");
byte[] input;
byte[] encode;
byte[] expectedEncode;
byte[] decode;
byte[] expectedDecode;
Random random = new Random(0);
Cipher cipher;
Cipher dCipher;
AlgorithmParameters algParams;
SecretKey key;
GCMParameterSpec gcm_spec;
byte[] aad;
int tlen = 12;
byte[] iv;
static int numThreads = 0;
int threadId;
static synchronized int getThreadId() {
int id = numThreads;
numThreads++;
return id;
}
abstract public void run();
public void prepare() {
try {
System.out.println("\nalgorithm=" + algorithm + ", mode=" + mode + ", paddingStr=" + paddingStr + ", msgSize=" + msgSize + ", keySize=" + keySize + ", noReinit=" + noReinit + ", checkOutput=" + checkOutput + ", encInputOffset=" + encInputOffset + ", encOutputOffset=" + encOutputOffset + ", decOutputOffset=" + decOutputOffset + ", lastChunkSize=" +lastChunkSize );
if (encInputOffset % ALIGN != 0 || encOutputOffset % ALIGN != 0 || decOutputOffset % ALIGN !=0 )
testingMisalignment = true;
int keyLenBytes = (keySize == 0 ? 16 : keySize/8);
byte keyBytes[] = new byte[keyLenBytes];
if (keySize == 128)
keyBytes = new byte[] {-8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7};
else
random.nextBytes(keyBytes);
key = new SecretKeySpec(keyBytes, algorithm);
if (threadId == 0) {
System.out.println("Algorithm: " + key.getAlgorithm() + "("
+ key.getEncoded().length * 8 + "bit)");
}
cipher = Cipher.getInstance(algorithm + "/" + mode + "/" + paddingStr, "SunJCE");
dCipher = Cipher.getInstance(algorithm + "/" + mode + "/" + paddingStr, "SunJCE");
if (mode.equals("CBC")) {
int ivLen = (algorithm.equals("AES") ? 16 : algorithm.equals("DES") ? 8 : 0);
IvParameterSpec initVector = new IvParameterSpec(new byte[ivLen]);
cipher.init(Cipher.ENCRYPT_MODE, key, initVector);
} else if (mode.equals("GCM")) {
iv = new byte[64];
random.nextBytes(iv);
aad = new byte[5];
random.nextBytes(aad);
gcm_init();
} else {
algParams = cipher.getParameters();
cipher.init(Cipher.ENCRYPT_MODE, key, algParams);
}
algParams = cipher.getParameters();
dCipher.init(Cipher.DECRYPT_MODE, key, algParams);
if (threadId == 0) {
childShowCipher();
}
inputLength = msgSize + encInputOffset;
if (testingMisalignment) {
encodeLength = cipher.getOutputSize(msgSize - lastChunkSize) + encOutputOffset;
encodeLength += cipher.getOutputSize(lastChunkSize);
decodeLength = dCipher.getOutputSize(encodeLength - lastChunkSize) + decOutputOffset;
decodeLength += dCipher.getOutputSize(lastChunkSize);
} else {
encodeLength = cipher.getOutputSize(msgSize) + encOutputOffset;
decodeLength = dCipher.getOutputSize(encodeLength) + decOutputOffset;
}
input = new byte[inputLength];
for (int i=encInputOffset, j=0; i<inputLength; i++, j++) {
input[i] = (byte) (j & 0xff);
}
// do one encode and decode in preparation
encode = new byte[encodeLength];
decode = new byte[decodeLength];
if (testingMisalignment) {
decodeMsgSize = cipher.update(input, encInputOffset, (msgSize - lastChunkSize), encode, encOutputOffset);
decodeMsgSize += cipher.doFinal(input, (encInputOffset + msgSize - lastChunkSize), lastChunkSize, encode, (encOutputOffset + decodeMsgSize));
int tempSize = dCipher.update(encode, encOutputOffset, (decodeMsgSize - lastChunkSize), decode, decOutputOffset);
dCipher.doFinal(encode, (encOutputOffset + decodeMsgSize - lastChunkSize), lastChunkSize, decode, (decOutputOffset + tempSize));
} else {
decodeMsgSize = cipher.doFinal(input, encInputOffset, msgSize, encode, encOutputOffset);
dCipher.doFinal(encode, encOutputOffset, decodeMsgSize, decode, decOutputOffset);
}
if (checkOutput) {
expectedEncode = (byte[]) encode.clone();
expectedDecode = (byte[]) decode.clone();
showArray(key.getEncoded() , "key: ");
showArray(input, "input: ");
showArray(encode, "encode: ");
showArray(decode, "decode: ");
}
}
catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
}
void showArray(byte b[], String name) {
System.out.format("%s [%d]: ", name, b.length);
for (int i=0; i<Math.min(b.length, 32); i++) {
System.out.format("%02x ", b[i] & 0xff);
}
System.out.println();
}
void compareArrays(byte b[], byte exp[]) {
if (b.length != exp.length) {
System.out.format("different lengths for actual and expected output arrays\n");
showArray(b, "test: ");
showArray(exp, "exp : ");
System.exit(1);
}
for (int i=0; i< exp.length; i++) {
if (b[i] != exp[i]) {
System.out.format("output error at index %d: got %02x, expected %02x\n", i, b[i] & 0xff, exp[i] & 0xff);
showArray(b, "test: ");
showArray(exp, "exp : ");
System.exit(1);
}
}
}
void showCipher(Cipher c, String kind) {
System.out.println(kind + " cipher provider: " + cipher.getProvider());
System.out.println(kind + " cipher algorithm: " + cipher.getAlgorithm());
}
abstract void childShowCipher();
void gcm_init() throws Exception {
tlen = 12;
gcm_spec = new GCMParameterSpec(tlen * 8, iv);
cipher = Cipher.getInstance(algorithm + "/" + mode + "/" + paddingStr, "SunJCE");
cipher.init(Cipher.ENCRYPT_MODE, key, gcm_spec);
cipher.update(aad);
}
}
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