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*
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* 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 ) .
*
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* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
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/**
* @ test
* @ bug 4807942 7033170
* @ summary Test the Cipher . getMaxAllowedKeyLength ( String ) and
* getMaxAllowedParameterSpec ( String ) methods
* @ author Valerie Peng
*/
import java.util.*;
import java.nio.*;
import java.security.*;
import java.security.spec.*;
import javax.crypto.*;
import javax.crypto.spec.*;
public class GetMaxAllowed {
private static void runTest1(boolean isUnlimited) throws Exception {
System.out.println("Testing " + (isUnlimited? "un" :"" ) +
"limited policy..." );
String algo = "Blowfish" ;
int keyLength = Cipher.getMaxAllowedKeyLength(algo);
AlgorithmParameterSpec spec = Cipher.getMaxAllowedParameterSpec(algo);
if (isUnlimited) {
if ((keyLength != Integer.MAX_VALUE) || (spec != null )) {
throw new Exception("Check for " + algo +
" failed under unlimited policy" );
}
} else {
if ((keyLength != 128 ) || (spec != null )) {
throw new Exception("Check for " + algo +
" failed under default policy" );
}
}
algo = "RC5" ;
keyLength = Cipher.getMaxAllowedKeyLength(algo);
RC5ParameterSpec rc5param = (RC5ParameterSpec)
Cipher.getMaxAllowedParameterSpec(algo);
if (isUnlimited) {
if ((keyLength != Integer.MAX_VALUE) || (rc5param != null )) {
throw new Exception("Check for " + algo +
" failed under unlimited policy" );
}
} else {
if ((keyLength != 128 ) || (rc5param.getRounds() != 12 ) ||
(rc5param.getVersion() != Integer.MAX_VALUE) ||
(rc5param.getWordSize() != Integer.MAX_VALUE)) {
throw new Exception("Check for " + algo +
" failed under default policy" );
}
}
System.out.println("All tests passed" );
}
private static void runTest2() throws Exception {
System.out.println("Testing against Security.getAlgorithms()" );
Set<String> algorithms = Security.getAlgorithms("Cipher" );
for (String algorithm: algorithms) {
int keylength = -1 ;
// if 7033170 is not fixed, NoSuchAlgorithmException is thrown
keylength = Cipher.getMaxAllowedKeyLength(algorithm);
}
}
public static void main(String[] args) throws Exception {
// decide if the installed jurisdiction policy file is the
// unlimited version
boolean isUnlimited = true ;
Cipher c = Cipher.getInstance("AES" , "SunJCE" );
try {
c.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(new byte [24 ], "AES" ));
} catch (InvalidKeyException ike) {
isUnlimited = false ;
}
runTest1(isUnlimited);
// test using the set of algorithms returned by Security.getAlgorithms()
runTest2();
}
}
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