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From "Jacobo Fernandez (JIRA)" <j...@apache.org>
Subject [jira] [Created] (WSS-574) IllegalArgumentException thrown in WSSecEncryptedKey due to incorrect keyAlgorithm
Date Thu, 10 Mar 2016 14:41:40 GMT
Jacobo Fernandez created WSS-574:
------------------------------------

             Summary: IllegalArgumentException thrown in WSSecEncryptedKey due to incorrect
keyAlgorithm
                 Key: WSS-574
                 URL: https://issues.apache.org/jira/browse/WSS-574
             Project: WSS4J
          Issue Type: Bug
          Components: WSS4J Core
         Environment: Windows 7 64 bit, java jdk 7.0_79, wss4j 1.6.18
            Reporter: Jacobo Fernandez
            Assignee: Colm O hEigeartaigh


This is hard to explain to me because I'm not expert in WSS, but this is what I found:

In {{WSSecEncryptedKey.prepareInternal}}, when {{WSSecurityUtil.getCipherInstance(keyEncAlgo)}}
is called, and {{keyEncAlgo}} value is {{WSConstants.KEYTRANSPORT_RSAOEP}}, the {{JCEMapper.translateURItoJCEID(cipherAlgo)}}
is returning (in my case) {{"RSA/ECB/OAEPPadding"}}. Then, oaepParameterSpec is not null and
it leads to the else, where it calls to {{cipher.init(Cipher.WRAP_MODE, remoteCert.getPublicKey(),
oaepParameterSpec)}}. This method call throws the following exception:

{{Caused by: java.lang.IllegalArgumentException: unknown parameter type.}}
	{{at org.bouncycastle.jce.provider.JCERSACipher.engineInit(Unknown Source)}}
	{{at javax.crypto.Cipher.implInit(Cipher.java:791)}}
	{{at javax.crypto.Cipher.chooseProvider(Cipher.java:849)}}
	{{at javax.crypto.Cipher.init(Cipher.java:1348)}}
	{{at javax.crypto.Cipher.init(Cipher.java:1282)}}
	{{at org.apache.ws.security.message.WSSecEncryptedKey.prepareInternal(WSSecEncryptedKey.java:257)}}

If I modify the first lines of {{getCipherInstance}} to this:

	public static Cipher getCipherInstance(String cipherAlgo)
			throws WSSecurityException {
		try {
			String keyAlgorithm = JCEMapper.translateURItoJCEID(cipherAlgo);
            if (WSConstants.KEYTRANSPORT_RSAOEP.equals(cipherAlgo)) {
				try {
					return Cipher.getInstance("RSA/ECB/OAEPWithSHA1AndMGF1Padding");
				} catch (Exception e) {
					throw new WSSecurityException(
						WSSecurityException.UNSUPPORTED_ALGORITHM, "unsupportedKeyTransp",
                        new Object[] { "No such algorithm: " + cipherAlgo }, e);
                }
            }
            String provider = JCEMapper.getProviderId();
            if (provider == null) {
                return Cipher.getInstance(keyAlgorithm);
            }
		...

it works. Don't know if this is a problem with the JCEMapper or wss4j itself.

Sorry for the bad explanation. Hope it helps.




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