Sign/Verify Operations Modify Original Document

[Vishal Mahajan]

Hi All,

I am a new member on the list, don't know whether this issue has been 
discussed on the list or not. Here's my problem/question related to the 
Java Signature Library:

When I do a sign operation, my original document is changed in certain 
way. The namespace attributes of a parent node are copied onto all its 
descendants in a recursive manner. After this the digest values are 
computed. Isn't this an incorrect behavior? Should the document be 
modified before signing? Similar thing happens during verify.

I feel this behavior would break the signature verification if I receive 
a signed document from a person not using apache library. Has the 
current implementation been tested for interoperability?

Thanks,

Vishal