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package org.bouncycastle.crypto.test;
import org.bouncycastle.crypto.digests.SHA256Digest;
import org.bouncycastle.crypto.macs.HMac;
import org.bouncycastle.crypto.params.KeyParameter;
import org.bouncycastle.util.Arrays;
import org.bouncycastle.util.encoders.Hex;
import org.bouncycastle.util.test.SimpleTestResult;
import org.bouncycastle.util.test.Test;
import org.bouncycastle.util.test.TestResult;
/**
* SHA256 HMac Test
*/
public class SHA256HMacTest
implements Test
{
final static String[] keys = {
"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b",
"4a656665",
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"0102030405060708090a0b0c0d0e0f10111213141516171819",
"0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c",
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
};
final static String[] digests = {
"b0344c61d8db38535ca8afceaf0bf12b881dc200c9833da726e9376c2e32cff7",
"5bdcc146bf60754e6a042426089575c75a003f089d2739839dec58b964ec3843",
"773ea91e36800e46854db8ebd09181a72959098b3ef8c122d9635514ced565fe",
"82558a389a443c0ea4cc819899f2083a85f0faa3e578f8077a2e3ff46729665b",
"a3b6167473100ee06e0c796c2955552bfa6f7c0a6a8aef8b93f860aab0cd20c5",
"60e431591ee0b67f0d8a26aacbf5b77f8e0bc6213728c5140546040f0ee37f54",
"9b09ffa71b942fcb27635fbcd5b0e944bfdc63644f0713938a7f51535c3a35e2"
};
final static String[] messages = {
"Hi There",
"what do ya want for nothing?",
"0xdddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd",
"0xcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd",
"Test With Truncation",
"Test Using Larger Than Block-Size Key - Hash Key First",
"This is a test using a larger than block-size key and a larger than block-size data. The key needs to be hashed before being used by the HMAC algorithm."
};
public String getName()
{
return "SHA256HMac";
}
public TestResult perform()
{
HMac hmac = new HMac(new SHA256Digest());
byte[] resBuf = new byte[hmac.getMacSize()];
for (int i = 0; i < messages.length; i++)
{
byte[] m = messages[i].getBytes();
if (messages[i].startsWith("0x"))
{
m = Hex.decode(messages[i].substring(2));
}
hmac.init(new KeyParameter(Hex.decode(keys[i])));
hmac.update(m, 0, m.length);
hmac.doFinal(resBuf, 0);
if (!Arrays.areEqual(resBuf, Hex.decode(digests[i])))
{
return new SimpleTestResult(false, getName() + ": Vector " + i + " failed got -" + new String(Hex.encode(resBuf)));
}
}
//
// test reset
//
int vector = 0; // vector used for test
byte[] m = messages[vector].getBytes();
if (messages[vector].startsWith("0x"))
{
m = Hex.decode(messages[vector].substring(2));
}
hmac.init(new KeyParameter(Hex.decode(keys[vector])));
hmac.update(m, 0, m.length);
hmac.doFinal(resBuf, 0);
hmac.reset();
hmac.update(m, 0, m.length);
hmac.doFinal(resBuf, 0);
if (!Arrays.areEqual(resBuf, Hex.decode(digests[vector])))
{
return new SimpleTestResult(false, getName() +
"Reset with vector " + vector + " failed");
}
return new SimpleTestResult(true, getName() + ": Okay");
}
public static void main(
String[] args)
{
SHA256HMacTest test = new SHA256HMacTest();
TestResult result = test.perform();
System.out.println(result);
}
}
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