javax.crypto not working properly; on linux ;-)

Thu Sep 28 22:38:00 GMT 2006

Hello list
Is there some active development on javax.crypto? Is this question 
better placed at the gnu classpath list (is there a list at all? I don't 
really understand the page)?
On windows it doesn't work at all. On linux I have problems as well. 
These two method bodies do exactly the same:
{
 File inFile = new File("test.mpg");
 File outFile = new File("test.enc");
 Cipher cipher = createCipher("helloWorld", Cipher.ENCRYPT_MODE);

 FileInputStream inputStream = new FileInputStream(inFile);
 FileOutputStream outputStream = new FileOutputStream(outFile);
 byte[] ba = new byte[1024 * 1024]; // 1mb

 while(true)
 {
 int len = inputStream.read(ba);
 if(len < 0) break;
 outputStream.write(cipher.update(ba, 0, len));
 }
 outputStream.write(cipher.doFinal());

 outputStream.flush();
 outputStream.close();
 inputStream.close();
}
{
 File inFile = new File("test.mpg");
 File outFile = new File("test.enc");
 Cipher cipher = createCipher("helloWorld", Cipher.ENCRYPT_MODE);

 FileInputStream inputStream = new FileInputStream(inFile);
 CipherOutputStream outputStream = new CipherOutputStream(new 
FileOutputStream(outFile), cipher);
 byte[] ba = new byte[1024 * 1024]; // 1mb

 while(true)
 {
 int len = inputStream.read(ba);
 if(len < 0) break;
 outputStream.write(ba, 0, len);
 }

 outputStream.flush();
 outputStream.close();
 inputStream.close();
}
private static Cipher createCipher(String password, int mode) throws 
Exception
{
 byte[] baKey = 
MessageDigest.getInstance("MD5").digest(password.getBytes());
 SecretKey secretKey = new SecretKeySpec(baKey, "AES");
 Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
 cipher.init(mode, secretKey);
 return cipher;
}
Only the first one works with GNU classpath. The second gives:
Exception in thread "main" java.lang.NullPointerException
 at gnu.javax.crypto.jce.cipher.CipherAdapter.engineUpdate(CryptTest-lin)
 at javax.crypto.Cipher.update(CryptTest-lin)
 at javax.crypto.Cipher.update(CryptTest-lin)
 at javax.crypto.CipherOutputStream.process(CryptTest-lin)
 at javax.crypto.CipherOutputStream.write(CryptTest-lin)
 at CryptTest.main(CryptTest-lin)
According decrypting doesn't work at all. Using CipherInputStream 
results in:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: -1
 at gnu.javax.crypto.pad.PKCS7.unpad(CryptTest-lin)
 at 
gnu.javax.crypto.jce.cipher.CipherAdapter.engineDoFinal(CryptTest-lin)
 at javax.crypto.Cipher.doFinal(CryptTest-lin)
 at javax.crypto.Cipher.doFinal(CryptTest-lin)
 at javax.crypto.CipherInputStream.nextBlock(CryptTest-lin)
 at javax.crypto.CipherInputStream.read(CryptTest-lin)
 at javax.crypto.CipherInputStream.read(CryptTest-lin)
 at CryptTest.main(CryptTest-lin)
Working direct with the cipher results in:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: -1
 at gnu.javax.crypto.pad.PKCS7.unpad(CryptTest-lin)
 at 
gnu.javax.crypto.jce.cipher.CipherAdapter.engineDoFinal(CryptTest-lin)
 at javax.crypto.Cipher.doFinal(CryptTest-lin)
 at javax.crypto.Cipher.doFinal(CryptTest-lin)
 at CryptTest.main(CryptTest-lin)
I checked the GNU classpath CVS. CipherInputStream, CipherOutputStream 
and Cipher are all pretty old so I guess they're all up to date in the 
latest GCJ source.
So, my questions:
- Is there someone actively maintaining javax.crypto?
- Is there someone who could guide me fixing it?
- Are there already patches/fixex I could backport for GCJ?
thanks
Marco