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From Sean Mullan <Sean.Mul...@Sun.COM>
Subject Re: Info required on SAX implementation of XML Dgital Signature verification
Date Tue, 13 Oct 2009 17:44:27 GMT
The difference in memory usage should be noticeable in a streaming 
implementation, especially when validating large signatures. Also, the 
amount of memory used should be fairly constant as the size of the data 


Sean Mullan wrote:
> It seems like the last time I worked on this, I didn't check in those 
> new classes. Let me see if I can find an old workspace and I'll get back 
> to you.
> --Sean
> wrote:
>> Hi all,
>> We are trying to use the SAX implementation of the XML Digital 
>> Signature verification. The reason of choosing SAX over DOM is because 
>> we are having huge files(10-30MB) whose signature needs to be created 
>> and verified( Also it should be multithreaded). And in the DOM 
>> implementation we are not able to meet NFRs in the processing time and 
>> the Memory usage. Using the SAX implementation has reduced the 
>> processing time and memory usage also but the difference is not huge. 
>>  Has anyone got any different implementation or way of using the SAX 
>> parser for the signature validation?
>> I was also looking at the STAX implementation code 
>> ( 
>> but I found that the branch code itself is incomplete. There are 
>> couple of missing classes which have been used in it and its giving 
>> compilation error.
>> Missing Classes name are –
>>> com.r_bg.stax.StaxStructure
>>> com.r_bg.stax.c14n.StaxCanonicalizationMethod
>> Can anyone point out where I can find these classes or how to 
>> implement these classes?
>> Regards,
>> Pankaj Kharbe
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