package org.bouncycastle.crypto.test;
import org.bouncycastle.crypto.Digest;
import org.bouncycastle.crypto.digests.MD5Digest;
import org.bouncycastle.util.encoders.Hex;
import org.bouncycastle.util.test.SimpleTestResult;
import org.bouncycastle.util.test.Test;
import org.bouncycastle.util.test.TestResult;
/**
* standard vector test for MD5 from "Handbook of Applied Cryptography", page 345.
*/
public class MD5DigestTest
implements Test
{
static private String testVec1 = "";
static private String resVec1 = "d41d8cd98f00b204e9800998ecf8427e";
static private String testVec2 = "61";
static private String resVec2 = "0cc175b9c0f1b6a831c399e269772661";
static private String testVec3 = "616263";
static private String resVec3 = "900150983cd24fb0d6963f7d28e17f72";
static private String testVec4 = "6162636465666768696a6b6c6d6e6f707172737475767778797a";
static private String resVec4 = "c3fcd3d76192e4007dfb496cca67e13b";
public String getName()
{
return "MD5";
}
public TestResult perform()
{
Digest digest = new MD5Digest();
byte[] resBuf = new byte[digest.getDigestSize()];
String resStr;
//
// test 1
//
digest.doFinal(resBuf, 0);
resStr = new String(Hex.encode(resBuf));
if (!resVec1.equals(resStr))
{
return new SimpleTestResult(false,
"MD5 failing standard vector test 1"
+ System.getProperty("line.separator")
+ " expected: " + resVec1
+ System.getProperty("line.separator")
+ " got : " + resStr);
}
//
// test 2
//
byte[] bytes = Hex.decode(testVec2);
digest.update(bytes, 0, bytes.length);
digest.doFinal(resBuf, 0);
resStr = new String(Hex.encode(resBuf));
if (!resVec2.equals(resStr))
{
return new SimpleTestResult(false,
"MD5 failing standard vector test 2"
+ System.getProperty("line.separator")
+ " expected: " + resVec2
+ System.getProperty("line.separator")
+ " got : " + resStr);
}
//
// test 3
//
bytes = Hex.decode(testVec3);
digest.update(bytes, 0, bytes.length);
digest.doFinal(resBuf, 0);
resStr = new String(Hex.encode(resBuf));
if (!resVec3.equals(resStr))
{
return new SimpleTestResult(false,
"MD5 failing standard vector test 3"
+ System.getProperty("line.separator")
+ " expected: " + resVec3
+ System.getProperty("line.separator")
+ " got : " + resStr);
}
//
// test 4
//
bytes = Hex.decode(testVec4);
digest.update(bytes, 0, bytes.length);
digest.doFinal(resBuf, 0);
resStr = new String(Hex.encode(resBuf));
if (!resVec4.equals(resStr))
{
return new SimpleTestResult(false,
"MD5 failing standard vector test 4"
+ System.getProperty("line.separator")
+ " expected: " + resVec4
+ System.getProperty("line.separator")
+ " got : " + resStr);
}
//
// test 5
//
bytes = Hex.decode(testVec4);
digest.update(bytes, 0, bytes.length/2);
// clone the Digest
Digest d = new MD5Digest((MD5Digest)digest);
digest.update(bytes, bytes.length/2, bytes.length - bytes.length/2);
digest.doFinal(resBuf, 0);
resStr = new String(Hex.encode(resBuf));
if (!resVec4.equals(resStr))
{
return new SimpleTestResult(false,
"MD5 failing standard vector test 5"
+ System.getProperty("line.separator")
+ " expected: " + resVec4
+ System.getProperty("line.separator")
+ " got : " + resStr);
}
d.update(bytes, bytes.length/2, bytes.length - bytes.length/2);
d.doFinal(resBuf, 0);
resStr = new String(Hex.encode(resBuf));
if (!resVec4.equals(resStr))
{
return new SimpleTestResult(false,
"MD5 failing standard vector test 5"
+ System.getProperty("line.separator")
+ " expected: " + resVec4
+ System.getProperty("line.separator")
+ " got : " + resStr);
}
return new SimpleTestResult(true, getName() + ": Okay");
}
public static void main(
String[] args)
{
MD5DigestTest test = new MD5DigestTest();
TestResult result = test.perform();
System.out.println(result);
}
}