RE: XMLSignatureException: The requested algorithm ... does not e xist

[Stephen Chell (DSL AK)]

Title: Message

After further investigation, the problem seems to be the combination of the following two factors:

 

1.  the JCE Algorithm Mappings specified in org/apache/xml/security/resource/config.xml do not include any mappings for IBM

 

2.  the JDK and libraries supplied with Websphere do not include the following class:  sun.security.provider.Sun

 

Any suggestions as to how to get around this problem?  

 

Thanks in advance ...

 

Steve

 

 

-----Original Message-----
From: Stephen Chell (DSL AK)
Sent: Monday, 19 April 2004 4:47 p.m.
To: [EMAIL PROTECTED]
Subject: XMLSignatureException: The requested algorithm ... does not exist

I'm getting the following exception in Websphere Application Server 5.1 (which uses JRE 1.4.1) when I attempt to instantiate an XMLSignature object from a fragment of XML.  

 

org.apache.xml.security.signature.XMLSignatureException: The requested algorithm http://www.w3.org/2000/09/xmldsig#dsa-sha1 does not exist. Original Message was: null
Original Exception was java.lang.NullPointerException
 at org.apache.xml.security.algorithms.SignatureAlgorithm.<init>(SignatureAlgorithm.java:217)
 at org.apache.xml.security.signature.SignedInfo.<init>(SignedInfo.java:213)
 at org.apache.xml.security.signature.XMLSignature.<init>(XMLSignature.java:281)
 at nz.govt.ssc.eai.common.message.EAIMessage.verifyMessageSignature(EAIMessage.java:434)
 ... 24 more

 

 

It works fine in Tomcat 4.1.29 using JDK 1.4.2_04, but in Websphere I get the above exception.  My understanding was that the crypto algorithms come built in to JDK 1.4 and above.  Is that correct?  If so shouldn't it work with WebSphere, which uses 1.4.1?

 

Thanks in advance ...

Steve