Does parsing modify inputStream in anyhow?

Guys,
does parsing (SAX and DOM) modify InputStream in anyhow? Specially regarding to indentation?
My exact issue: If I have a digitally signed XML InputStream into my java mapping, parse it (for schema validation, for example) and just put InputStream into OutputStream, will the output's signature be still valid, for sure, or is there any possibility that it will be invalidated?
Please answer for both SAX and DOM parsers.
Thanks in advance,
Henrique.

Hi,
As explained above by Bhavesh.
See below links also.
/people/sap.user72/blog/2005/06/16/using-digital-signatures-in-xi
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/55ba9790-0201-0010-aa98-ce8f51ea93cd
Loading Invoice XML IDoc with digital signature via XI into R/3
Security Issues: SSL on SOAP Adapter and Digital Signature in BPM
http://help.sap.com/saphelp_nw04s/helpdata/en/6b/8c784226d1d242e10000000a1550b0/frameset.htm
Encryption of Data in XI3.0
Regards
Chilla

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Here i am again from Copenhagen Denmark.
To day i would like to question/discuss the following things
ItFs all about the PL/SQL XML parser which i have installed on
my OracleServer 8i Enterprice
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If i want to modify DOMSAMPLE.sql or write my own program, i now
have very few choices
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-- get all elements
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Joergen Hoeyer (guest) wrote:
: PLSQL XML parser modified examples
: Hello Fine Folks at Oracle xml team
: Here i am again from Copenhagen Denmark.
: To day i would like to question/discuss the following things
: ItFs all about the PL/SQL XML parser which i have installed on
: my OracleServer 8i Enterprice
: Question 1
: If i want to modify DOMSAMPLE.sql or write my own program, i
now
: have very few choices
: Where to look for intelligent answers to my questions.
: 1. My only source here is the package body for XMLPARSER which
i
: have installed under
: the user SCOTT/TIGER. I made a dump of all that code to the
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design
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: nl := xmlparser.getElementsByTagName(doc, '*');
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: for j in 0..len1-1 loop
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