Cannot Create a DataSet from Signed XML Document

[Brian W. Smith]

I have XML Documents that I am digitally signing, and need to be able to load
these documents into DataSet objects. However, after checking the signature
and using the DataSet.ReadXML method, I am getting an exception "The root
element is missing".

I have struggled over the last 24 hours trying to figure out ways of
correcting this, however I am stuck. I would appreciate any help that the
community can provide me on this.

Thanks,

[Nicholas Paldino [.NET/C# MVP]]

Brian,

Can you post an example of the signed document?
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:26**********************************@microsof t.com...

I have XML Documents that I am digitally signing, and need to be able to
load
these documents into DataSet objects. However, after checking the
signature
and using the DataSet.ReadXML method, I am getting an exception "The root
element is missing".

I have struggled over the last 24 hours trying to figure out ways of
correcting this, however I am stuck. I would appreciate any help that the
community can provide me on this.

Thanks,

[Brian W. Smith]

Here is an example of the file. The file is used to create 3 datatables in
the DataSet, I used the signature information in the first node position and
the last node. This example shows the signature in the first position using
the XmlDocument.DocumentElement.PrependChild() method.

Thanks

<?xml version="1.0" encoding="utf-8"?>
<FWT>
<Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
<SignedInfo>
<CanonicalizationMethod
Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
<SignatureMethod
Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1" />
<Reference URI="">
<Transforms>
<Transform
Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
</Transforms>
<DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1" />
<DigestValue>hxyhMOAfdFJYOsDlADHTah0Gmmg=</DigestValue>
</Reference>
</SignedInfo>

<SignatureValue>rakRKha0vAX8cIsFwhJUsgzOB1NMNW6v iG/EsTUivy4Rt3Cg2k1LDTkmJv+bXhgWBoPBtdMxg9ZSXah0P1qw5 K/1npSWPmJ9uWGEQuWwZT5KqJNfq1iy7QKfUiKGTn1q+0Mc2WXPo 18v6Fnuqqh7+btrpfnvbTaKJ0mQHAw9H+0=</SignatureValue>
<KeyInfo>
<KeyValue xmlns="http://www.w3.org/2000/09/xmldsig#">
<RSAKeyValue>

<Modulus>01k61JX5bc/jCLnnEHtzw3o08hs6+KjE58md8wkRrBgTTEU3gtmD1Q8SxPxpJ iSwGNRCWTAghxSrK7AFYOCGZTblstnHerqs0Z/LTVNW2JaVkI34kvquqWdd6JJ+GNYWWuKuTiTjyEpLSikjXXFTW kLJqDU/w1Lq6MN6g+z6lx8=</Modulus>
<Exponent>AQAB</Exponent>
</RSAKeyValue>
</KeyValue>
</KeyInfo>
</Signature>
<FWT_CONFIG>
<keyName>#PEREXEMPAMT</keyName>
<keyValue>3100</keyValue>
</FWT_CONFIG>
<FWT_FORMULA>
<Step>1</Step>
<Token>MUL</Token>
<Arg1>@TAXWAGES</Arg1>
<Arg2>@PAYPERIODS</Arg2>
<Arg3>ANNUALWAGE</Arg3>
<Arg4 />
<Arg5 />
<Arg6 />
<Arg7 />
<Arg8 />
<DefValue>0</DefValue>
<Comment />
</FWT_FORMULA>
<FWT_TAXTABLES>
<filingStatus>1</filingStatus>
<taxTableId>3</taxTableId>
<baseWage>9700</baseWage>
<upperWage>30800</upperWage>
<taxAmt>705</taxAmt>
<taxRate>0.15</taxRate>
</FWT_TAXTABLES>
<FWT_TAXTABLES>
<filingStatus>1</filingStatus>
<taxTableId>4</taxTableId>
<baseWage>30800</baseWage>
<upperWage>68500</upperWage>
<taxAmt>3870</taxAmt>
<taxRate>0.25</taxRate>
</FWT_TAXTABLES>
</FWT>
"Nicholas Paldino [.NET/C# MVP]" wrote:

Brian,

Can you post an example of the signed document?
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:26**********************************@microsof t.com...

I have XML Documents that I am digitally signing, and need to be able to
load
these documents into DataSet objects. However, after checking the
signature
and using the DataSet.ReadXML method, I am getting an exception "The root
element is missing".

I have struggled over the last 24 hours trying to figure out ways of
correcting this, however I am stuck. I would appreciate any help that the
community can provide me on this.

Thanks,

[Nicholas Paldino [.NET/C# MVP]]

Brian,

I saved that XML document to a file, and then loaded it into a DataSet
without any problems. Are you sure this is the right file, and how are you
loading it into the DataSet?
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:0B**********************************@microsof t.com...

Here is an example of the file. The file is used to create 3 datatables in
the DataSet, I used the signature information in the first node position
and
the last node. This example shows the signature in the first position
using
the XmlDocument.DocumentElement.PrependChild() method.

Thanks

<?xml version="1.0" encoding="utf-8"?>
<FWT>
<Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
<SignedInfo>
<CanonicalizationMethod
Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
<SignatureMethod
Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1" />
<Reference URI="">
<Transforms>
<Transform
Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
</Transforms>
<DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1" />
<DigestValue>hxyhMOAfdFJYOsDlADHTah0Gmmg=</DigestValue>
</Reference>
</SignedInfo>

<SignatureValue>rakRKha0vAX8cIsFwhJUsgzOB1NMNW6v iG/EsTUivy4Rt3Cg2k1LDTkmJv+bXhgWBoPBtdMxg9ZSXah0P1qw5 K/1npSWPmJ9uWGEQuWwZT5KqJNfq1iy7QKfUiKGTn1q+0Mc2WXPo 18v6Fnuqqh7+btrpfnvbTaKJ0mQHAw9H+0=</SignatureValue>
<KeyInfo>
<KeyValue xmlns="http://www.w3.org/2000/09/xmldsig#">
<RSAKeyValue>

<Modulus>01k61JX5bc/jCLnnEHtzw3o08hs6+KjE58md8wkRrBgTTEU3gtmD1Q8SxPxpJ iSwGNRCWTAghxSrK7AFYOCGZTblstnHerqs0Z/LTVNW2JaVkI34kvquqWdd6JJ+GNYWWuKuTiTjyEpLSikjXXFTW kLJqDU/w1Lq6MN6g+z6lx8=</Modulus>
<Exponent>AQAB</Exponent>
</RSAKeyValue>
</KeyValue>
</KeyInfo>
</Signature>
<FWT_CONFIG>
<keyName>#PEREXEMPAMT</keyName>
<keyValue>3100</keyValue>
</FWT_CONFIG>
<FWT_FORMULA>
<Step>1</Step>
<Token>MUL</Token>
<Arg1>@TAXWAGES</Arg1>
<Arg2>@PAYPERIODS</Arg2>
<Arg3>ANNUALWAGE</Arg3>
<Arg4 />
<Arg5 />
<Arg6 />
<Arg7 />
<Arg8 />
<DefValue>0</DefValue>
<Comment />
</FWT_FORMULA>
<FWT_TAXTABLES>
<filingStatus>1</filingStatus>
<taxTableId>3</taxTableId>
<baseWage>9700</baseWage>
<upperWage>30800</upperWage>
<taxAmt>705</taxAmt>
<taxRate>0.15</taxRate>
</FWT_TAXTABLES>
<FWT_TAXTABLES>
<filingStatus>1</filingStatus>
<taxTableId>4</taxTableId>
<baseWage>30800</baseWage>
<upperWage>68500</upperWage>
<taxAmt>3870</taxAmt>
<taxRate>0.25</taxRate>
</FWT_TAXTABLES>
</FWT>
"Nicholas Paldino [.NET/C# MVP]" wrote:

Brian,

Can you post an example of the signed document?
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:26**********************************@microsof t.com...

>I have XML Documents that I am digitally signing, and need to be able to
>load
> these documents into DataSet objects. However, after checking the
> signature
> and using the DataSet.ReadXML method, I am getting an exception "The
> root
> element is missing".
>
> I have struggled over the last 24 hours trying to figure out ways of
> correcting this, however I am stuck. I would appreciate any help that
> the
> community can provide me on this.
>
> Thanks,

[Brian W. Smith]

Thanks for the quick reply. I am passing it in as a StreamReader, as I am
using the same StreamReader to pull out the signature and verify it. Below is
the code that i am using.

sr is the StreamReader that contains the file
XmlDocument doc = new XmlDocument();

doc.Load(sr);
SignedXml verifier = new SignedXml(doc);
verifier.LoadXml(doc.GetElementsByTagName("Signatu re")[0] as XmlElement);

if (verifier.CheckSignature())
{

this.GetConfigFileToScreen(sr);
}
public void GetConfigFileToScreen ( StreamReader sr )
{
DataSet ds1 = new DataSet();
ds1.ReadXml(sr); // This is the error line.
"Nicholas Paldino [.NET/C# MVP]" wrote:

Brian,

I saved that XML document to a file, and then loaded it into a DataSet
without any problems. Are you sure this is the right file, and how are you
loading it into the DataSet?
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:0B**********************************@microsof t.com...

Here is an example of the file. The file is used to create 3 datatables in
the DataSet, I used the signature information in the first node position
and
the last node. This example shows the signature in the first position
using
the XmlDocument.DocumentElement.PrependChild() method.

Thanks

<?xml version="1.0" encoding="utf-8"?>
<FWT>
<Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
<SignedInfo>
<CanonicalizationMethod
Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
<SignatureMethod
Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1" />
<Reference URI="">
<Transforms>
<Transform
Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
</Transforms>
<DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1" />
<DigestValue>hxyhMOAfdFJYOsDlADHTah0Gmmg=</DigestValue>
</Reference>
</SignedInfo>

<SignatureValue>rakRKha0vAX8cIsFwhJUsgzOB1NMNW6v iG/EsTUivy4Rt3Cg2k1LDTkmJv+bXhgWBoPBtdMxg9ZSXah0P1qw5 K/1npSWPmJ9uWGEQuWwZT5KqJNfq1iy7QKfUiKGTn1q+0Mc2WXPo 18v6Fnuqqh7+btrpfnvbTaKJ0mQHAw9H+0=</SignatureValue>
<KeyInfo>
<KeyValue xmlns="http://www.w3.org/2000/09/xmldsig#">
<RSAKeyValue>

<Modulus>01k61JX5bc/jCLnnEHtzw3o08hs6+KjE58md8wkRrBgTTEU3gtmD1Q8SxPxpJ iSwGNRCWTAghxSrK7AFYOCGZTblstnHerqs0Z/LTVNW2JaVkI34kvquqWdd6JJ+GNYWWuKuTiTjyEpLSikjXXFTW kLJqDU/w1Lq6MN6g+z6lx8=</Modulus>
<Exponent>AQAB</Exponent>
</RSAKeyValue>
</KeyValue>
</KeyInfo>
</Signature>
<FWT_CONFIG>
<keyName>#PEREXEMPAMT</keyName>
<keyValue>3100</keyValue>
</FWT_CONFIG>
<FWT_FORMULA>
<Step>1</Step>
<Token>MUL</Token>
<Arg1>@TAXWAGES</Arg1>
<Arg2>@PAYPERIODS</Arg2>
<Arg3>ANNUALWAGE</Arg3>
<Arg4 />
<Arg5 />
<Arg6 />
<Arg7 />
<Arg8 />
<DefValue>0</DefValue>
<Comment />
</FWT_FORMULA>
<FWT_TAXTABLES>
<filingStatus>1</filingStatus>
<taxTableId>3</taxTableId>
<baseWage>9700</baseWage>
<upperWage>30800</upperWage>
<taxAmt>705</taxAmt>
<taxRate>0.15</taxRate>
</FWT_TAXTABLES>
<FWT_TAXTABLES>
<filingStatus>1</filingStatus>
<taxTableId>4</taxTableId>
<baseWage>30800</baseWage>
<upperWage>68500</upperWage>
<taxAmt>3870</taxAmt>
<taxRate>0.25</taxRate>
</FWT_TAXTABLES>
</FWT>
"Nicholas Paldino [.NET/C# MVP]" wrote:

Brian,

Can you post an example of the signed document?
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:26**********************************@microsof t.com...
>I have XML Documents that I am digitally signing, and need to be able to
>load
> these documents into DataSet objects. However, after checking the
> signature
> and using the DataSet.ReadXML method, I am getting an exception "The
> root
> element is missing".
>
> I have struggled over the last 24 hours trying to figure out ways of
> correcting this, however I am stuck. I would appreciate any help that
> the
> community can provide me on this.
>
> Thanks,

[Nicholas Paldino [.NET/C# MVP]]

Brian,

You are reading from the stream, but you are not resetting the position,
it would seem. You basically want to do this before you read the data set:

// Set the position to the beginning.
sr.BaseStream.Position = 0;

// Discard buffered data.
sr.DiscardBufferedData();

// Read normally.

That should work.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:8B**********************************@microsof t.com...

Thanks for the quick reply. I am passing it in as a StreamReader, as I am
using the same StreamReader to pull out the signature and verify it. Below
is
the code that i am using.

sr is the StreamReader that contains the file
XmlDocument doc = new XmlDocument();

doc.Load(sr);
SignedXml verifier = new SignedXml(doc);
verifier.LoadXml(doc.GetElementsByTagName("Signatu re")[0] as XmlElement);

if (verifier.CheckSignature())
{

this.GetConfigFileToScreen(sr);
}
public void GetConfigFileToScreen ( StreamReader sr )
{
DataSet ds1 = new DataSet();
ds1.ReadXml(sr); // This is the error line.
"Nicholas Paldino [.NET/C# MVP]" wrote:

Brian,

I saved that XML document to a file, and then loaded it into a
DataSet
without any problems. Are you sure this is the right file, and how are
you
loading it into the DataSet?
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:0B**********************************@microsof t.com...

> Here is an example of the file. The file is used to create 3 datatables
> in
> the DataSet, I used the signature information in the first node
> position
> and
> the last node. This example shows the signature in the first position
> using
> the XmlDocument.DocumentElement.PrependChild() method.
>
> Thanks
>
> <?xml version="1.0" encoding="utf-8"?>
> <FWT>
> <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
> <SignedInfo>
> <CanonicalizationMethod
> Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
> <SignatureMethod
> Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1" />
> <Reference URI="">
> <Transforms>
> <Transform
> Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
> </Transforms>
> <DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"
> />
> <DigestValue>hxyhMOAfdFJYOsDlADHTah0Gmmg=</DigestValue>
> </Reference>
> </SignedInfo>
>
> <SignatureValue>rakRKha0vAX8cIsFwhJUsgzOB1NMNW6v iG/EsTUivy4Rt3Cg2k1LDTkmJv+bXhgWBoPBtdMxg9ZSXah0P1qw5 K/1npSWPmJ9uWGEQuWwZT5KqJNfq1iy7QKfUiKGTn1q+0Mc2WXPo 18v6Fnuqqh7+btrpfnvbTaKJ0mQHAw9H+0=</SignatureValue>
> <KeyInfo>
> <KeyValue xmlns="http://www.w3.org/2000/09/xmldsig#">
> <RSAKeyValue>
>
> <Modulus>01k61JX5bc/jCLnnEHtzw3o08hs6+KjE58md8wkRrBgTTEU3gtmD1Q8SxPxpJ iSwGNRCWTAghxSrK7AFYOCGZTblstnHerqs0Z/LTVNW2JaVkI34kvquqWdd6JJ+GNYWWuKuTiTjyEpLSikjXXFTW kLJqDU/w1Lq6MN6g+z6lx8=</Modulus>
> <Exponent>AQAB</Exponent>
> </RSAKeyValue>
> </KeyValue>
> </KeyInfo>
> </Signature>
> <FWT_CONFIG>
> <keyName>#PEREXEMPAMT</keyName>
> <keyValue>3100</keyValue>
> </FWT_CONFIG>
> <FWT_FORMULA>
> <Step>1</Step>
> <Token>MUL</Token>
> <Arg1>@TAXWAGES</Arg1>
> <Arg2>@PAYPERIODS</Arg2>
> <Arg3>ANNUALWAGE</Arg3>
> <Arg4 />
> <Arg5 />
> <Arg6 />
> <Arg7 />
> <Arg8 />
> <DefValue>0</DefValue>
> <Comment />
> </FWT_FORMULA>
> <FWT_TAXTABLES>
> <filingStatus>1</filingStatus>
> <taxTableId>3</taxTableId>
> <baseWage>9700</baseWage>
> <upperWage>30800</upperWage>
> <taxAmt>705</taxAmt>
> <taxRate>0.15</taxRate>
> </FWT_TAXTABLES>
> <FWT_TAXTABLES>
> <filingStatus>1</filingStatus>
> <taxTableId>4</taxTableId>
> <baseWage>30800</baseWage>
> <upperWage>68500</upperWage>
> <taxAmt>3870</taxAmt>
> <taxRate>0.25</taxRate>
> </FWT_TAXTABLES>
> </FWT>
>
>
> "Nicholas Paldino [.NET/C# MVP]" wrote:
>
>> Brian,
>>
>> Can you post an example of the signed document?
>>
>>
>> --
>> - Nicholas Paldino [.NET/C# MVP]
>> - mv*@spam.guard.caspershouse.com
>>
>> "Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in
>> message
>> news:26**********************************@microsof t.com...
>> >I have XML Documents that I am digitally signing, and need to be able
>> >to
>> >load
>> > these documents into DataSet objects. However, after checking the
>> > signature
>> > and using the DataSet.ReadXML method, I am getting an exception "The
>> > root
>> > element is missing".
>> >
>> > I have struggled over the last 24 hours trying to figure out ways of
>> > correcting this, however I am stuck. I would appreciate any help
>> > that
>> > the
>> > community can provide me on this.
>> >
>> > Thanks,
>>
>>
>>

[Brian W. Smith]

Thanks again, I implemented your solution, however I am still receiving the
same exception. Any ideas? I appreciate your looking into this for me.

"Nicholas Paldino [.NET/C# MVP]" wrote:

Brian,

You are reading from the stream, but you are not resetting the position,
it would seem. You basically want to do this before you read the data set:

// Set the position to the beginning.
sr.BaseStream.Position = 0;

// Discard buffered data.
sr.DiscardBufferedData();

// Read normally.

That should work.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:8B**********************************@microsof t.com...

Thanks for the quick reply. I am passing it in as a StreamReader, as I am
using the same StreamReader to pull out the signature and verify it. Below
is
the code that i am using.

sr is the StreamReader that contains the file
XmlDocument doc = new XmlDocument();

doc.Load(sr);
SignedXml verifier = new SignedXml(doc);
verifier.LoadXml(doc.GetElementsByTagName("Signatu re")[0] as XmlElement);

if (verifier.CheckSignature())
{

this.GetConfigFileToScreen(sr);
}
public void GetConfigFileToScreen ( StreamReader sr )
{
DataSet ds1 = new DataSet();
ds1.ReadXml(sr); // This is the error line.
"Nicholas Paldino [.NET/C# MVP]" wrote:

Brian,

I saved that XML document to a file, and then loaded it into a
DataSet
without any problems. Are you sure this is the right file, and how are
you
loading it into the DataSet?
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:0B**********************************@microsof t.com...
> Here is an example of the file. The file is used to create 3 datatables
> in
> the DataSet, I used the signature information in the first node
> position
> and
> the last node. This example shows the signature in the first position
> using
> the XmlDocument.DocumentElement.PrependChild() method.
>
> Thanks
>
> <?xml version="1.0" encoding="utf-8"?>
> <FWT>
> <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
> <SignedInfo>
> <CanonicalizationMethod
> Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
> <SignatureMethod
> Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1" />
> <Reference URI="">
> <Transforms>
> <Transform
> Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
> </Transforms>
> <DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"
> />
> <DigestValue>hxyhMOAfdFJYOsDlADHTah0Gmmg=</DigestValue>
> </Reference>
> </SignedInfo>
>
> <SignatureValue>rakRKha0vAX8cIsFwhJUsgzOB1NMNW6v iG/EsTUivy4Rt3Cg2k1LDTkmJv+bXhgWBoPBtdMxg9ZSXah0P1qw5 K/1npSWPmJ9uWGEQuWwZT5KqJNfq1iy7QKfUiKGTn1q+0Mc2WXPo 18v6Fnuqqh7+btrpfnvbTaKJ0mQHAw9H+0=</SignatureValue>
> <KeyInfo>
> <KeyValue xmlns="http://www.w3.org/2000/09/xmldsig#">
> <RSAKeyValue>
>
> <Modulus>01k61JX5bc/jCLnnEHtzw3o08hs6+KjE58md8wkRrBgTTEU3gtmD1Q8SxPxpJ iSwGNRCWTAghxSrK7AFYOCGZTblstnHerqs0Z/LTVNW2JaVkI34kvquqWdd6JJ+GNYWWuKuTiTjyEpLSikjXXFTW kLJqDU/w1Lq6MN6g+z6lx8=</Modulus>
> <Exponent>AQAB</Exponent>
> </RSAKeyValue>
> </KeyValue>
> </KeyInfo>
> </Signature>
> <FWT_CONFIG>
> <keyName>#PEREXEMPAMT</keyName>
> <keyValue>3100</keyValue>
> </FWT_CONFIG>
> <FWT_FORMULA>
> <Step>1</Step>
> <Token>MUL</Token>
> <Arg1>@TAXWAGES</Arg1>
> <Arg2>@PAYPERIODS</Arg2>
> <Arg3>ANNUALWAGE</Arg3>
> <Arg4 />
> <Arg5 />
> <Arg6 />
> <Arg7 />
> <Arg8 />
> <DefValue>0</DefValue>
> <Comment />
> </FWT_FORMULA>
> <FWT_TAXTABLES>
> <filingStatus>1</filingStatus>
> <taxTableId>3</taxTableId>
> <baseWage>9700</baseWage>
> <upperWage>30800</upperWage>
> <taxAmt>705</taxAmt>
> <taxRate>0.15</taxRate>
> </FWT_TAXTABLES>
> <FWT_TAXTABLES>
> <filingStatus>1</filingStatus>
> <taxTableId>4</taxTableId>
> <baseWage>30800</baseWage>
> <upperWage>68500</upperWage>
> <taxAmt>3870</taxAmt>
> <taxRate>0.25</taxRate>
> </FWT_TAXTABLES>
> </FWT>
>
>
> "Nicholas Paldino [.NET/C# MVP]" wrote:
>
>> Brian,
>>
>> Can you post an example of the signed document?
>>
>>
>> --
>> - Nicholas Paldino [.NET/C# MVP]
>> - mv*@spam.guard.caspershouse.com
>>
>> "Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in
>> message
>> news:26**********************************@microsof t.com...
>> >I have XML Documents that I am digitally signing, and need to be able
>> >to
>> >load
>> > these documents into DataSet objects. However, after checking the
>> > signature
>> > and using the DataSet.ReadXML method, I am getting an exception "The
>> > root
>> > element is missing".
>> >
>> > I have struggled over the last 24 hours trying to figure out ways of
>> > correcting this, however I am stuck. I would appreciate any help
>> > that
>> > the
>> > community can provide me on this.
>> >
>> > Thanks,
>>
>>
>>

[Nicholas Paldino [.NET/C# MVP]]

Brian,

It's not an issue with the data set, but the position of the stream.
I'd focus there. If you save the XML to a file and load it into the data
set, it will work fine.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:0A**********************************@microsof t.com...

Thanks again, I implemented your solution, however I am still receiving
the
same exception. Any ideas? I appreciate your looking into this for me.

"Nicholas Paldino [.NET/C# MVP]" wrote:

Brian,

You are reading from the stream, but you are not resetting the
position,
it would seem. You basically want to do this before you read the data
set:

// Set the position to the beginning.
sr.BaseStream.Position = 0;

// Discard buffered data.
sr.DiscardBufferedData();

// Read normally.

That should work.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:8B**********************************@microsof t.com...

> Thanks for the quick reply. I am passing it in as a StreamReader, as I
> am
> using the same StreamReader to pull out the signature and verify it.
> Below
> is
> the code that i am using.
>
> sr is the StreamReader that contains the file
>
>
> XmlDocument doc = new XmlDocument();
>
> doc.Load(sr);
> SignedXml verifier = new SignedXml(doc);
> verifier.LoadXml(doc.GetElementsByTagName("Signatu re")[0] as
> XmlElement);
>
> if (verifier.CheckSignature())
> {
>
> this.GetConfigFileToScreen(sr);
> }
>
>
> public void GetConfigFileToScreen ( StreamReader sr )
> {
> DataSet ds1 = new DataSet();
> ds1.ReadXml(sr); // This is the error line.
>
>
> "Nicholas Paldino [.NET/C# MVP]" wrote:
>
>> Brian,
>>
>> I saved that XML document to a file, and then loaded it into a
>> DataSet
>> without any problems. Are you sure this is the right file, and how
>> are
>> you
>> loading it into the DataSet?
>>
>>
>> --
>> - Nicholas Paldino [.NET/C# MVP]
>> - mv*@spam.guard.caspershouse.com
>>
>> "Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in
>> message
>> news:0B**********************************@microsof t.com...
>> > Here is an example of the file. The file is used to create 3
>> > datatables
>> > in
>> > the DataSet, I used the signature information in the first node
>> > position
>> > and
>> > the last node. This example shows the signature in the first
>> > position
>> > using
>> > the XmlDocument.DocumentElement.PrependChild() method.
>> >
>> > Thanks
>> >
>> > <?xml version="1.0" encoding="utf-8"?>
>> > <FWT>
>> > <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
>> > <SignedInfo>
>> > <CanonicalizationMethod
>> > Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
>> > <SignatureMethod
>> > Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1" />
>> > <Reference URI="">
>> > <Transforms>
>> > <Transform
>> > Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
>> > </Transforms>
>> > <DigestMethod
>> > Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"
>> > />
>> > <DigestValue>hxyhMOAfdFJYOsDlADHTah0Gmmg=</DigestValue>
>> > </Reference>
>> > </SignedInfo>
>> >
>> > <SignatureValue>rakRKha0vAX8cIsFwhJUsgzOB1NMNW6v iG/EsTUivy4Rt3Cg2k1LDTkmJv+bXhgWBoPBtdMxg9ZSXah0P1qw5 K/1npSWPmJ9uWGEQuWwZT5KqJNfq1iy7QKfUiKGTn1q+0Mc2WXPo 18v6Fnuqqh7+btrpfnvbTaKJ0mQHAw9H+0=</SignatureValue>
>> > <KeyInfo>
>> > <KeyValue xmlns="http://www.w3.org/2000/09/xmldsig#">
>> > <RSAKeyValue>
>> >
>> > <Modulus>01k61JX5bc/jCLnnEHtzw3o08hs6+KjE58md8wkRrBgTTEU3gtmD1Q8SxPxpJ iSwGNRCWTAghxSrK7AFYOCGZTblstnHerqs0Z/LTVNW2JaVkI34kvquqWdd6JJ+GNYWWuKuTiTjyEpLSikjXXFTW kLJqDU/w1Lq6MN6g+z6lx8=</Modulus>
>> > <Exponent>AQAB</Exponent>
>> > </RSAKeyValue>
>> > </KeyValue>
>> > </KeyInfo>
>> > </Signature>
>> > <FWT_CONFIG>
>> > <keyName>#PEREXEMPAMT</keyName>
>> > <keyValue>3100</keyValue>
>> > </FWT_CONFIG>
>> > <FWT_FORMULA>
>> > <Step>1</Step>
>> > <Token>MUL</Token>
>> > <Arg1>@TAXWAGES</Arg1>
>> > <Arg2>@PAYPERIODS</Arg2>
>> > <Arg3>ANNUALWAGE</Arg3>
>> > <Arg4 />
>> > <Arg5 />
>> > <Arg6 />
>> > <Arg7 />
>> > <Arg8 />
>> > <DefValue>0</DefValue>
>> > <Comment />
>> > </FWT_FORMULA>
>> > <FWT_TAXTABLES>
>> > <filingStatus>1</filingStatus>
>> > <taxTableId>3</taxTableId>
>> > <baseWage>9700</baseWage>
>> > <upperWage>30800</upperWage>
>> > <taxAmt>705</taxAmt>
>> > <taxRate>0.15</taxRate>
>> > </FWT_TAXTABLES>
>> > <FWT_TAXTABLES>
>> > <filingStatus>1</filingStatus>
>> > <taxTableId>4</taxTableId>
>> > <baseWage>30800</baseWage>
>> > <upperWage>68500</upperWage>
>> > <taxAmt>3870</taxAmt>
>> > <taxRate>0.25</taxRate>
>> > </FWT_TAXTABLES>
>> > </FWT>
>> >
>> >
>> > "Nicholas Paldino [.NET/C# MVP]" wrote:
>> >
>> >> Brian,
>> >>
>> >> Can you post an example of the signed document?
>> >>
>> >>
>> >> --
>> >> - Nicholas Paldino [.NET/C# MVP]
>> >> - mv*@spam.guard.caspershouse.com
>> >>
>> >> "Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in
>> >> message
>> >> news:26**********************************@microsof t.com...
>> >> >I have XML Documents that I am digitally signing, and need to be
>> >> >able
>> >> >to
>> >> >load
>> >> > these documents into DataSet objects. However, after checking the
>> >> > signature
>> >> > and using the DataSet.ReadXML method, I am getting an exception
>> >> > "The
>> >> > root
>> >> > element is missing".
>> >> >
>> >> > I have struggled over the last 24 hours trying to figure out ways
>> >> > of
>> >> > correcting this, however I am stuck. I would appreciate any help
>> >> > that
>> >> > the
>> >> > community can provide me on this.
>> >> >
>> >> > Thanks,
>> >>
>> >>
>> >>
>>
>>
>>

[Brian W. Smith]

Thanks for the pointer... I had to reset the position before I build the
doc.LoadXML and then before I loaded the dataset... I really appreciate your
help... thanks.

"Nicholas Paldino [.NET/C# MVP]" wrote:

Brian,

It's not an issue with the data set, but the position of the stream.
I'd focus there. If you save the XML to a file and load it into the data
set, it will work fine.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:0A**********************************@microsof t.com...

Thanks again, I implemented your solution, however I am still receiving
the
same exception. Any ideas? I appreciate your looking into this for me.

"Nicholas Paldino [.NET/C# MVP]" wrote:

Brian,

You are reading from the stream, but you are not resetting the
position,
it would seem. You basically want to do this before you read the data
set:

// Set the position to the beginning.
sr.BaseStream.Position = 0;

// Discard buffered data.
sr.DiscardBufferedData();

// Read normally.

That should work.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:8B**********************************@microsof t.com...
> Thanks for the quick reply. I am passing it in as a StreamReader, as I
> am
> using the same StreamReader to pull out the signature and verify it.
> Below
> is
> the code that i am using.
>
> sr is the StreamReader that contains the file
>
>
> XmlDocument doc = new XmlDocument();
>
> doc.Load(sr);
> SignedXml verifier = new SignedXml(doc);
> verifier.LoadXml(doc.GetElementsByTagName("Signatu re")[0] as
> XmlElement);
>
> if (verifier.CheckSignature())
> {
>
> this.GetConfigFileToScreen(sr);
> }
>
>
> public void GetConfigFileToScreen ( StreamReader sr )
> {
> DataSet ds1 = new DataSet();
> ds1.ReadXml(sr); // This is the error line.
>
>
> "Nicholas Paldino [.NET/C# MVP]" wrote:
>
>> Brian,
>>
>> I saved that XML document to a file, and then loaded it into a
>> DataSet
>> without any problems. Are you sure this is the right file, and how
>> are
>> you
>> loading it into the DataSet?
>>
>>
>> --
>> - Nicholas Paldino [.NET/C# MVP]
>> - mv*@spam.guard.caspershouse.com
>>
>> "Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in
>> message
>> news:0B**********************************@microsof t.com...
>> > Here is an example of the file. The file is used to create 3
>> > datatables
>> > in
>> > the DataSet, I used the signature information in the first node
>> > position
>> > and
>> > the last node. This example shows the signature in the first
>> > position
>> > using
>> > the XmlDocument.DocumentElement.PrependChild() method.
>> >
>> > Thanks
>> >
>> > <?xml version="1.0" encoding="utf-8"?>
>> > <FWT>
>> > <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
>> > <SignedInfo>
>> > <CanonicalizationMethod
>> > Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
>> > <SignatureMethod
>> > Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1" />
>> > <Reference URI="">
>> > <Transforms>
>> > <Transform
>> > Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
>> > </Transforms>
>> > <DigestMethod
>> > Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"
>> > />
>> > <DigestValue>hxyhMOAfdFJYOsDlADHTah0Gmmg=</DigestValue>
>> > </Reference>
>> > </SignedInfo>
>> >
>> > <SignatureValue>rakRKha0vAX8cIsFwhJUsgzOB1NMNW6v iG/EsTUivy4Rt3Cg2k1LDTkmJv+bXhgWBoPBtdMxg9ZSXah0P1qw5 K/1npSWPmJ9uWGEQuWwZT5KqJNfq1iy7QKfUiKGTn1q+0Mc2WXPo 18v6Fnuqqh7+btrpfnvbTaKJ0mQHAw9H+0=</SignatureValue>
>> > <KeyInfo>
>> > <KeyValue xmlns="http://www.w3.org/2000/09/xmldsig#">
>> > <RSAKeyValue>
>> >
>> > <Modulus>01k61JX5bc/jCLnnEHtzw3o08hs6+KjE58md8wkRrBgTTEU3gtmD1Q8SxPxpJ iSwGNRCWTAghxSrK7AFYOCGZTblstnHerqs0Z/LTVNW2JaVkI34kvquqWdd6JJ+GNYWWuKuTiTjyEpLSikjXXFTW kLJqDU/w1Lq6MN6g+z6lx8=</Modulus>
>> > <Exponent>AQAB</Exponent>
>> > </RSAKeyValue>
>> > </KeyValue>
>> > </KeyInfo>
>> > </Signature>
>> > <FWT_CONFIG>
>> > <keyName>#PEREXEMPAMT</keyName>
>> > <keyValue>3100</keyValue>
>> > </FWT_CONFIG>
>> > <FWT_FORMULA>
>> > <Step>1</Step>
>> > <Token>MUL</Token>
>> > <Arg1>@TAXWAGES</Arg1>
>> > <Arg2>@PAYPERIODS</Arg2>
>> > <Arg3>ANNUALWAGE</Arg3>
>> > <Arg4 />
>> > <Arg5 />
>> > <Arg6 />
>> > <Arg7 />
>> > <Arg8 />
>> > <DefValue>0</DefValue>
>> > <Comment />
>> > </FWT_FORMULA>
>> > <FWT_TAXTABLES>
>> > <filingStatus>1</filingStatus>
>> > <taxTableId>3</taxTableId>
>> > <baseWage>9700</baseWage>
>> > <upperWage>30800</upperWage>
>> > <taxAmt>705</taxAmt>
>> > <taxRate>0.15</taxRate>
>> > </FWT_TAXTABLES>
>> > <FWT_TAXTABLES>
>> > <filingStatus>1</filingStatus>
>> > <taxTableId>4</taxTableId>
>> > <baseWage>30800</baseWage>
>> > <upperWage>68500</upperWage>
>> > <taxAmt>3870</taxAmt>
>> > <taxRate>0.25</taxRate>
>> > </FWT_TAXTABLES>
>> > </FWT>
>> >
>> >
>> > "Nicholas Paldino [.NET/C# MVP]" wrote:
>> >
>> >> Brian,
>> >>
>> >> Can you post an example of the signed document?
>> >>
>> >>
>> >> --
>> >> - Nicholas Paldino [.NET/C# MVP]
>> >> - mv*@spam.guard.caspershouse.com
>> >>
>> >> "Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in
>> >> message
>> >> news:26**********************************@microsof t.com...
>> >> >I have XML Documents that I am digitally signing, and need to be
>> >> >able
>> >> >to
>> >> >load
>> >> > these documents into DataSet objects. However, after checking the
>> >> > signature
>> >> > and using the DataSet.ReadXML method, I am getting an exception
>> >> > "The
>> >> > root
>> >> > element is missing".
>> >> >
>> >> > I have struggled over the last 24 hours trying to figure out ways
>> >> > of
>> >> > correcting this, however I am stuck. I would appreciate any help
>> >> > that
>> >> > the
>> >> > community can provide me on this.
>> >> >
>> >> > Thanks,
>> >>
>> >>
>> >>
>>
>>
>>

[jji]

Hi, Brian

I think you might change the contents in the Xml file by using "doc" , when
you call SignedXml constructor in the following context.

SignedXml verifier = new SignedXml(doc);

jason
"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:8B**********************************@microsof t.com...

Thanks for the quick reply. I am passing it in as a StreamReader, as I am
using the same StreamReader to pull out the signature and verify it. Below is the code that i am using.

sr is the StreamReader that contains the file
XmlDocument doc = new XmlDocument();

doc.Load(sr);
SignedXml verifier = new SignedXml(doc);
verifier.LoadXml(doc.GetElementsByTagName("Signatu re")[0] as XmlElement);

if (verifier.CheckSignature())
{

this.GetConfigFileToScreen(sr);
}
public void GetConfigFileToScreen ( StreamReader sr )
{
DataSet ds1 = new DataSet();
ds1.ReadXml(sr); // This is the error line.
"Nicholas Paldino [.NET/C# MVP]" wrote:

Brian,

I saved that XML document to a file, and then loaded it into a DataSet without any problems. Are you sure this is the right file, and how are you loading it into the DataSet?
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message news:0B**********************************@microsof t.com...

Here is an example of the file. The file is used to create 3 datatables in the DataSet, I used the signature information in the first node position and
the last node. This example shows the signature in the first position
using
the XmlDocument.DocumentElement.PrependChild() method.

Thanks

<?xml version="1.0" encoding="utf-8"?>
<FWT>
<Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
<SignedInfo>
<CanonicalizationMethod
Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
<SignatureMethod
Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1" />
<Reference URI="">
<Transforms>
<Transform
Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
</Transforms>
<DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1" /> <DigestValue>hxyhMOAfdFJYOsDlADHTah0Gmmg=</DigestValue>
</Reference>
</SignedInfo>

<SignatureValue>rakRKha0vAX8cIsFwhJUsgzOB1NMNW6v iG/EsTUivy4Rt3Cg2k1LDTkmJv+b
XhgWBoPBtdMxg9ZSXah0P1qw5K/1npSWPmJ9uWGEQuWwZT5KqJNfq1iy7QKfUiKGTn1q+0Mc2WXP
o18v6Fnuqqh7+btrpfnvbTaKJ0mQHAw9H+0=</SignatureValue> <KeyInfo>
<KeyValue xmlns="http://www.w3.org/2000/09/xmldsig#">
<RSAKeyValue>

<Modulus>01k61JX5bc/jCLnnEHtzw3o08hs6+KjE58md8wkRrBgTTEU3gtmD1Q8SxPxpJ iSwGNR
CWTAghxSrK7AFYOCGZTblstnHerqs0Z/LTVNW2JaVkI34kvquqWdd6JJ+GNYWWuKuTiTjyEpLSik
jXXFTWkLJqDU/w1Lq6MN6g+z6lx8=</Modulus> <Exponent>AQAB</Exponent>
</RSAKeyValue>
</KeyValue>
</KeyInfo>
</Signature>
<FWT_CONFIG>
<keyName>#PEREXEMPAMT</keyName>
<keyValue>3100</keyValue>
</FWT_CONFIG>
<FWT_FORMULA>
<Step>1</Step>
<Token>MUL</Token>
<Arg1>@TAXWAGES</Arg1>
<Arg2>@PAYPERIODS</Arg2>
<Arg3>ANNUALWAGE</Arg3>
<Arg4 />
<Arg5 />
<Arg6 />
<Arg7 />
<Arg8 />
<DefValue>0</DefValue>
<Comment />
</FWT_FORMULA>
<FWT_TAXTABLES>
<filingStatus>1</filingStatus>
<taxTableId>3</taxTableId>
<baseWage>9700</baseWage>
<upperWage>30800</upperWage>
<taxAmt>705</taxAmt>
<taxRate>0.15</taxRate>
</FWT_TAXTABLES>
<FWT_TAXTABLES>
<filingStatus>1</filingStatus>
<taxTableId>4</taxTableId>
<baseWage>30800</baseWage>
<upperWage>68500</upperWage>
<taxAmt>3870</taxAmt>
<taxRate>0.25</taxRate>
</FWT_TAXTABLES>
</FWT>
"Nicholas Paldino [.NET/C# MVP]" wrote:

> Brian,
>
> Can you post an example of the signed document?
>
>
> --
> - Nicholas Paldino [.NET/C# MVP]
> - mv*@spam.guard.caspershouse.com
>
> "Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message> news:26**********************************@microsof t.com...
> >I have XML Documents that I am digitally signing, and need to be able to> >load
> > these documents into DataSet objects. However, after checking the
> > signature
> > and using the DataSet.ReadXML method, I am getting an exception "The> > root
> > element is missing".
> >
> > I have struggled over the last 24 hours trying to figure out ways of> > correcting this, however I am stuck. I would appreciate any help that> > the
> > community can provide me on this.
> >
> > Thanks,
>
>
>

[Brian W. Smith]

Jason, I found that I had to reset the stream reader to position 0 in a
couple of places, as it was being passed from a caller to the displayed
method to one other method. So by the time that it got to the doc.LoadXml(sr)
statement the stream was at the end. I think when the stream is passed in to
the method the stream reader is advanced forward to the last position.
Because further testing showed that each time that I sent the stream reader
in as a parameter to a method the streamreader position would be EOF.

"jji" wrote:

Hi, Brian

I think you might change the contents in the Xml file by using "doc" , when
you call SignedXml constructor in the following context.

SignedXml verifier = new SignedXml(doc);

jason
"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message
news:8B**********************************@microsof t.com...

Thanks for the quick reply. I am passing it in as a StreamReader, as I am
using the same StreamReader to pull out the signature and verify it. Below

is

the code that i am using.

sr is the StreamReader that contains the file
XmlDocument doc = new XmlDocument();

doc.Load(sr);
SignedXml verifier = new SignedXml(doc);
verifier.LoadXml(doc.GetElementsByTagName("Signatu re")[0] as XmlElement);

if (verifier.CheckSignature())
{

this.GetConfigFileToScreen(sr);
}
public void GetConfigFileToScreen ( StreamReader sr )
{
DataSet ds1 = new DataSet();
ds1.ReadXml(sr); // This is the error line.
"Nicholas Paldino [.NET/C# MVP]" wrote:

Brian,

I saved that XML document to a file, and then loaded it into a DataSet without any problems. Are you sure this is the right file, and how are you loading it into the DataSet?
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message news:0B**********************************@microsof t.com...
> Here is an example of the file. The file is used to create 3 datatables in > the DataSet, I used the signature information in the first node position > and
> the last node. This example shows the signature in the first position
> using
> the XmlDocument.DocumentElement.PrependChild() method.
>
> Thanks
>
> <?xml version="1.0" encoding="utf-8"?>
> <FWT>
> <Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
> <SignedInfo>
> <CanonicalizationMethod
> Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
> <SignatureMethod
> Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1" />
> <Reference URI="">
> <Transforms>
> <Transform
> Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
> </Transforms>
> <DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1" /> > <DigestValue>hxyhMOAfdFJYOsDlADHTah0Gmmg=</DigestValue>
> </Reference>
> </SignedInfo>
>
> <SignatureValue>rakRKha0vAX8cIsFwhJUsgzOB1NMNW6v iG/EsTUivy4Rt3Cg2k1LDTkmJv+b
XhgWBoPBtdMxg9ZSXah0P1qw5K/1npSWPmJ9uWGEQuWwZT5KqJNfq1iy7QKfUiKGTn1q+0Mc2WXP
o18v6Fnuqqh7+btrpfnvbTaKJ0mQHAw9H+0=</SignatureValue> > <KeyInfo>
> <KeyValue xmlns="http://www.w3.org/2000/09/xmldsig#">
> <RSAKeyValue>
>
> <Modulus>01k61JX5bc/jCLnnEHtzw3o08hs6+KjE58md8wkRrBgTTEU3gtmD1Q8SxPxpJ iSwGNR
CWTAghxSrK7AFYOCGZTblstnHerqs0Z/LTVNW2JaVkI34kvquqWdd6JJ+GNYWWuKuTiTjyEpLSik
jXXFTWkLJqDU/w1Lq6MN6g+z6lx8=</Modulus> > <Exponent>AQAB</Exponent>
> </RSAKeyValue>
> </KeyValue>
> </KeyInfo>
> </Signature>
> <FWT_CONFIG>
> <keyName>#PEREXEMPAMT</keyName>
> <keyValue>3100</keyValue>
> </FWT_CONFIG>
> <FWT_FORMULA>
> <Step>1</Step>
> <Token>MUL</Token>
> <Arg1>@TAXWAGES</Arg1>
> <Arg2>@PAYPERIODS</Arg2>
> <Arg3>ANNUALWAGE</Arg3>
> <Arg4 />
> <Arg5 />
> <Arg6 />
> <Arg7 />
> <Arg8 />
> <DefValue>0</DefValue>
> <Comment />
> </FWT_FORMULA>
> <FWT_TAXTABLES>
> <filingStatus>1</filingStatus>
> <taxTableId>3</taxTableId>
> <baseWage>9700</baseWage>
> <upperWage>30800</upperWage>
> <taxAmt>705</taxAmt>
> <taxRate>0.15</taxRate>
> </FWT_TAXTABLES>
> <FWT_TAXTABLES>
> <filingStatus>1</filingStatus>
> <taxTableId>4</taxTableId>
> <baseWage>30800</baseWage>
> <upperWage>68500</upperWage>
> <taxAmt>3870</taxAmt>
> <taxRate>0.25</taxRate>
> </FWT_TAXTABLES>
> </FWT>
>
>
> "Nicholas Paldino [.NET/C# MVP]" wrote:
>
>> Brian,
>>
>> Can you post an example of the signed document?
>>
>>
>> --
>> - Nicholas Paldino [.NET/C# MVP]
>> - mv*@spam.guard.caspershouse.com
>>
>> "Brian W. Smith" <Br*********@discussions.microsoft.com> wrote in message >> news:26**********************************@microsof t.com...
>> >I have XML Documents that I am digitally signing, and need to be able to >> >load
>> > these documents into DataSet objects. However, after checking the
>> > signature
>> > and using the DataSet.ReadXML method, I am getting an exception "The >> > root
>> > element is missing".
>> >
>> > I have struggled over the last 24 hours trying to figure out ways of >> > correcting this, however I am stuck. I would appreciate any help that >> > the
>> > community can provide me on this.
>> >
>> > Thanks,
>>
>>
>>

[Ravichandran J.V.]

If it is possible, can you write the original DataSet data into the xml
file by using the FillSchema and Fill methods of the DataAdapter?

with regards,
J.V.Ravichandran
- http://www.geocities.com/
jvravichandran
- http://www.411asp.net/func/search?
qry=Ravichandran+J.V.&cob=aspnetpro
- http://www.southasianoutlook.com
- http://www.MSDNAA.Net
- http://www.csharphelp.com
- http://www.poetry.com/Publications/
display.asp?ID=P3966388&BN=999&PN=2
- Or, just search on "J.V.Ravichandran"
at http://www.Google.com

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