/* TestOfDSSKeyPairGenerator.java
Copyright (C) 2006 Free Software Foundation, Inc.
This file is part of Mauve.
Mauve is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
Mauve 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 for more details.
You should have received a copy of the GNU General Public License
along with Mauve; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.
*/
// Tags: GNU-CRYPTO JDK1.4
package gnu.testlet.gnu.java.security.jce;
import java.math.BigInteger;
import java.security.AlgorithmParameters;
import java.security.InvalidParameterException;
import java.security.KeyPairGenerator;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.Provider;
import java.security.SecureRandom;
import java.security.Security;
import java.security.interfaces.DSAKeyPairGenerator;
import java.security.spec.AlgorithmParameterSpec;
import java.security.spec.DSAParameterSpec;
import gnu.java.security.Registry;
import gnu.java.security.provider.Gnu;
import gnu.testlet.TestHarness;
import gnu.testlet.Testlet;
/**
* API conformance tests for the DSS key-pair generator.
*/
public class TestOfDSSKeyPairGenerator implements Testlet
{
private SecureRandom rnd = new SecureRandom();
private KeyPairGenerator kpg;
public void test(TestHarness harness)
{
setUp(harness);
checkInvalidDefaultModuli(harness);
checkValidDefaultModuli(harness);
checkInitializeSignatures(harness);
}
private void setUp(TestHarness harness)
{
Security.addProvider(new Gnu()); // dynamically adds our provider
try
{
kpg = KeyPairGenerator.getInstance(Registry.DSS_KPG, Registry.GNU_SECURITY);
}
catch (NoSuchAlgorithmException x)
{
harness.debug(x);
harness.fail("setUp(): " + x.getMessage());
}
catch (NoSuchProviderException x)
{
harness.debug(x);
harness.fail("setUp(): " + x.getMessage());
}
}
private void checkInvalidDefaultModuli(TestHarness harness)
{
harness.checkPoint("checkInvalidDefaultModuli");
for (int i = 512 + 64; i < 1024; i += 64)
if (i % 256 == 0)
continue;
else
{
if (initModLen(i))
harness.fail(i + "-bit IS NOT a valid modulus length");
}
harness.check(true, "Unsupported default values are rejected");
}
private boolean initModLen(int modlen)
{
boolean result = false;
try
{
kpg.initialize(modlen);
result = true;
}
catch (Exception ignored)
{
}
return result;
}
private void checkValidDefaultModuli(TestHarness harness)
{
harness.checkPoint("checkValidDefaultModuli");
for (int i = 0, modlen = 512; i < 2; i++, modlen += 256 * i)
if (!initModLen(modlen))
harness.fail(modlen + "-bit MUST be a valid modulus length");
harness.check(true, "Supported default values are accepted");
}
private void checkInitializeSignatures(TestHarness harness)
{
harness.checkPoint("checkInitializeSignatures");
String msg;
// KeyPairGenerator init methods ------------------------------------------
Provider fp = new Gnu();
msg = "initialize(AlgorithmParameterSpec) MUST succeed";
try
{
AlgorithmParameters ap = AlgorithmParameters.getInstance("DSA", fp);
AlgorithmParameterSpec spec =
ap.getParameterSpec(DSAParameterSpec.class);
kpg.initialize(spec);
harness.check(true, msg);
}
catch (Exception x)
{
harness.debug(x);
harness.fail(msg);
}
msg = "initialize(AlgorithmParameterSpec, SecureRandom) MUST succeed";
try
{
AlgorithmParameters ap = AlgorithmParameters.getInstance("DSA", fp);
AlgorithmParameterSpec spec =
ap.getParameterSpec(DSAParameterSpec.class);
kpg.initialize(spec, rnd);
harness.check(true, msg);
}
catch (Exception x)
{
harness.debug(x);
harness.fail(msg);
}
msg= "initialize(512) MUST succeed";
try
{
kpg.initialize(512);
harness.check(true, msg);
}
catch (Exception x)
{
harness.debug(x);
harness.fail(msg);
}
msg= "initialize(512, SecureRandom) MUST succeed";
try
{
kpg.initialize(512, rnd);
harness.check(true, msg);
}
catch (Exception x)
{
harness.debug(x);
harness.fail(msg);
}
// DSAKeyPairGenerator init methods ---------------------------------------
DSAKeyPairGenerator dsakpg = (DSAKeyPairGenerator) kpg;
msg = "initialize(DSAParams, SecureRandom) MUST succeed";
try
{
dsakpg.initialize(
new DSAParameterSpec(BigInteger.ONE, BigInteger.ONE, BigInteger.ONE),
rnd);
harness.check(true, msg);
}
catch (Exception x)
{
harness.debug(x);
harness.fail(msg);
}
msg = "initialize(null, SecureRandom) MUST throw InvalidParameterException";
try
{
dsakpg.initialize(null, rnd);
harness.fail(msg);
}
catch (InvalidParameterException x)
{
harness.check(true, msg);
}
catch (Exception x)
{
harness.debug(x);
harness.fail(msg);
}
msg = "initialize(512, false, SecureRandom) MUST succeed";
try
{
dsakpg.initialize(512, false, rnd);
harness.check(true, msg);
}
catch (Exception x)
{
harness.debug(x);
harness.fail(msg);
}
msg = "initialize(1024, false, SecureRandom) MUST succeed";
try
{
dsakpg.initialize(512, false, rnd);
harness.check(true, msg);
}
catch (Exception x)
{
harness.debug(x);
harness.fail(msg);
}
}
}