package org.bouncycastle.crypto.test;
import org.bouncycastle.crypto.Digest;
import org.bouncycastle.crypto.digests.RIPEMD256Digest;
import org.bouncycastle.util.encoders.Hex;
import org.bouncycastle.util.test.SimpleTestResult;
import org.bouncycastle.util.test.Test;
import org.bouncycastle.util.test.TestResult;
/**
* RIPEMD128 Digest Test
*/
public class RIPEMD256DigestTest
implements Test
{
final static String[] messages = {
"",
"a",
"abc",
"message digest",
"abcdefghijklmnopqrstuvwxyz",
"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
"12345678901234567890123456789012345678901234567890123456789012345678901234567890"
};
final static String[] digests = {
"02ba4c4e5f8ecd1877fc52d64d30e37a2d9774fb1e5d026380ae0168e3c5522d",
"f9333e45d857f5d90a91bab70a1eba0cfb1be4b0783c9acfcd883a9134692925",
"afbd6e228b9d8cbbcef5ca2d03e6dba10ac0bc7dcbe4680e1e42d2e975459b65",
"87e971759a1ce47a514d5c914c392c9018c7c46bc14465554afcdf54a5070c0e",
"649d3034751ea216776bf9a18acc81bc7896118a5197968782dd1fd97d8d5133",
"3843045583aac6c8c8d9128573e7a9809afb2a0f34ccc36ea9e72f16f6368e3f",
"5740a408ac16b720b84424ae931cbb1fe363d1d0bf4017f1a89f7ea6de77a0b8",
"06fdcc7a409548aaf91368c06a6275b553e3f099bf0ea4edfd6778df89a890dd"
};
final static String million_a_digest = "ac953744e10e31514c150d4d8d7b677342e33399788296e43ae4850ce4f97978";
public static boolean arraysEqual(byte[] a, byte[] b)
{
if (a == b) return true;
if (a.length != b.length) return false;
for (int i = 0; i < a.length; i++)
{
if (a[i] != b[i]) return false;
}
return true;
}
public String getName()
{
return "RIPEMD256";
}
public TestResult perform()
{
Digest digest = new RIPEMD256Digest();
byte[] resBuf = new byte[digest.getDigestSize()];
for (int i = 0; i < messages.length; i++)
{
byte[] m = messages[i].getBytes();
digest.update(m, 0, m.length);
digest.doFinal(resBuf, 0);
if (!arraysEqual(resBuf, Hex.decode(digests[i])))
{
return new SimpleTestResult(false, getName() + ": Vector " + i + " failed");
}
}
//
// test 2
//
byte[] m = messages[messages.length-1].getBytes();
digest.update(m, 0, m.length/2);
// clone the Digest
Digest d = new RIPEMD256Digest((RIPEMD256Digest)digest);
digest.update(m, m.length/2, m.length - m.length/2);
digest.doFinal(resBuf, 0);
if (!arraysEqual(resBuf, Hex.decode(digests[digests.length-1])))
{
return new SimpleTestResult(false,
"RIPEMD256 failing clone test"
+ System.getProperty("line.separator")
+ " expected: " + digests[digests.length-1]
+ System.getProperty("line.separator")
+ " got : " + new String(Hex.encode(resBuf)));
}
d.update(m, m.length/2, m.length - m.length/2);
d.doFinal(resBuf, 0);
if (!arraysEqual(resBuf, Hex.decode(digests[digests.length-1])))
{
return new SimpleTestResult(false,
"RIPEMD256 failing clone test - part 2"
+ System.getProperty("line.separator")
+ " expected: " + digests[digests.length-1]
+ System.getProperty("line.separator")
+ " got : " + new String(Hex.encode(resBuf)));
}
for (int i = 0; i < 1000000; i++)
{
digest.update((byte)'a');
}
digest.doFinal(resBuf, 0);
if (!arraysEqual(resBuf, Hex.decode(million_a_digest)))
{
return new SimpleTestResult(false, getName() + ": Million a's failed");
}
return new SimpleTestResult(true, getName() + ": Okay");
}
public static void main(
String[] args)
{
RIPEMD256DigestTest test = new RIPEMD256DigestTest();
TestResult result = test.perform();
System.out.println(result);
}
}