[xmlsec] Strange Environmental Problem on certain Windows machines

EdShallow ed.shallow at gmail.com
Thu Jan 12 15:53:14 PST 2012

Hi Aleksey,

      I have had this xmlsec application (now at 1.2.18) working for
several years without incident on Windows XP, Vista, and even Windows 7.

However on selected machines that I run the application on, I get an I/O
error related to buffer flushing and C14N canonicalization. This only
happens on certain Windows XP machines and I think it is related to some
run-time executable (.dll or exe) outside my environment.

Here is the summary trace of what comes out on the console .... note where
there error occurs between xmlSecDSigCtxInitialize and xmlSecDSigCtxSign

input buffer follows .... write to stdout from my application

<?xml version="1.0"?>
        <SubSubData1 MimeType="text/plain">This is the data to be
        <SubSubData2 MimeType="text/plain">This is the data to be
        <SubSubData3 MimeType="text/plain">This is the data to be
    <SubData2>This is the data to be signed.</SubData2>
    <SubData3>This is the data to be signed.</SubData3>
<dsig:Signature xmlns:dsig="http://www.w3.org/2000/09/xmldsig#">
        <dsig:CanonicalizationMethod Algorithm="
        <dsig:SignatureMethod Algorithm="
        <dsig:Reference URI="">
                <dsig:Transform Algorithm="
            <dsig:DigestMethod Algorithm="
        <dsig:KeyName>Shallow, Ed</dsig:KeyName>

after xmlSecDSigCtxCreate  .... write to stdout from my app
after xmlSecDSigCtxInitialize .... write to stfout from my app

I/O error : flush error
C14N error : Internal error : flushing output buffer

after xmlSecDSigCtxSign .... write to stdout from my app

2012/01/12 18:36:53  INFO Sign with TransactionID 00000000 completed on
thread 1 with Status ===> 1716 and ErrorMessage
==> Failed to create signature  Invalid algorithm specified.   Error
occurred in function xmlSecDSigCtxSign at line 303
relating to xmlSecDSigCtxSigantureProcessNode<br> Document length 429.

Any ideas which .dll .exe may be missing, wrong version, etc ....

Many thanks . . .


Ed's Contact Information:
Mobile Phone: 613-852-6410
Gmail: ed.shallow at gmail.com
VOIP Address: 107529 at sip.ca1.voip.ms
VOIP DID#: 613-458-5004
Skype ID: edward.shallow
Home Phone: 613-482-2090
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