----- Original Message -----
From: "Eliasen Jan" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, May 23, 2006 10:05 PM
Subject: RE: [iText-questions] Signing a PDF file with a digital signature
I now have this working:
string alias = null;
PKCS12Store pk12 = new PKCS12Store(new
FileStream(@"D:\Work\Projekter\DubliNet\Sikkerhed\Certifikatet\PrivateKeyWithCert.p12",
FileMode.Open, FileAccess.Read), "TooHot4u".ToCharArray());
IEnumerator i = pk12.aliases();
while (i.MoveNext())
{
alias = ((string)i.Current);
if (pk12.isKeyEntry(alias))
break;
}
AsymmetricKeyParameter akp = pk12.getKey(alias).getKey();
X509CertificateEntry[] ce = pk12.getCertificateChain(alias);
X509Certificate[] chain = new X509Certificate[ce.Length];
for (int k = 0; k < ce.Length; ++k)
chain[k] = ce[k].getCertificate();
PdfReader reader = new
PdfReader(@"D:\Work\Projekter\DubliNet\Blanketter\20050104 InfoRequest
filled out.pdf");
PdfStamper st = PdfStamper.CreateSignature(reader, new
FileStream(@"D:\Work\Projekter\DubliNet\Blanketter\20050104 InfoRequest
filled out SIGNED.pdf", FileMode.Create, FileAccess.Write), '\0');
PdfSignatureAppearance sap = st.SignatureAppearance;
sap.SetCrypto(akp, chain, null, PdfSignatureAppearance.WINCER_SIGNED);
sap.Reason = "I am approving this document";
sap.Location = "Denmark";
sap.SetVisibleSignature(new iTextSharp.text.Rectangle(50, 75, 250, 150),
1, null);
st.Close();
But once the document has been signed, a user can still edit the form. I
need this to be disabled. How can I do that?
After creating the stamper call setEncryption().
And what are the WINCER_SIGNED, SELF_SIGNED and VERISIGN_SIGNED options?
Not all signatures are born equal, there are many variants.
Paulo
Thanks in advance.
Med venlig hilsen
________________________________________
Jan Eliasen
WM-data
Fredrik Bajers Vej 1
9220 Aalborg Øst
Tel.: +45 9630 5800, direkte: +45 9630 5818
Mobil: +45 2518 8024, fax: +45 9630 5805
mailto: [EMAIL PROTECTED]
http://www.wmdata.dk
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Eliasen
Jan
Sent: 23. maj 2006 22:51
To: [email protected]
Subject: RE: [iText-questions] Signing a PDF file with a digital signature
Hi
Using this code:
X509CertificateParser p = new X509CertificateParser(new
FileStream(@"D:\Work\Projekter\DubliNet\Sikkerhed\Certifikatet\PrivateKey.p12",
FileMode.Open, FileAccess.Read)); X509Certificate x = p.ReadCertificate();
I get a System.ArgumentException in the second line. Aditional
information: unknown object in factory
Using this code:
string alias = null;
PKCS12Store pk12 = new PKCS12Store(new
FileStream(@"D:\Work\Projekter\DubliNet\Sikkerhed\Certifikatet\PrivateKey.p12",
FileMode.Open, FileAccess.Read), "TooHot4u".ToCharArray()); IEnumerator i
= pk12.aliases(); while (i.MoveNext()) {
alias = ((string)i.Current);
if (pk12.isKeyEntry(alias))
break;
}
AsymmetricKeyParameter akp = pk12.getKey(alias).getKey();
I get an InvalidCastException in the last line. Additional information:
Specified cast is not valid. The "pk12.isKeyEntry(alias) returns true on
the first iteration on i.
Med venlig hilsen
________________________________________
Jan Eliasen
WM-data
Fredrik Bajers Vej 1
9220 Aalborg Øst
Tel.: +45 9630 5800, direkte: +45 9630 5818
Mobil: +45 2518 8024, fax: +45 9630 5805
mailto: [EMAIL PROTECTED]
http://www.wmdata.dk
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Paulo
Soares
Sent: 23. maj 2006 16:07
To: [email protected]
Subject: RE: [iText-questions] Signing a PDF file with a digital signature
What error do you get and in what part of the code?
Paulo
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Eliasen Jan
Sent: Tuesday, May 23, 2006 2:54 PM
To: [email protected]
Subject: RE: [iText-questions] Signing a PDF file with a digital
signature
Hi
Thanks! But I can't seem to get it to work... I have a certificate
which is a .p12 file - and I can not seem to get it to work.
I have tried both the non-WSE approaches from the link you have
provided, replacing the certificate file in the code with my .p12
file. But it doesn't seem to work in either case.
Any thoughts? Are .p12 files not supported? Or have I just not
understood how I should load it?
Thanks in advance!
Med venlig hilsen
________________________________________
Jan Eliasen
WM-data
Fredrik Bajers Vej 1
9220 Aalborg Øst
Tel.: +45 9630 5800, direkte: +45 9630 5818
Mobil: +45 2518 8024, fax: +45 9630 5805
mailto: [EMAIL PROTECTED]
http://www.wmdata.dk
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Paulo Soares
Sent: 22. maj 2006 01:28
To: [email protected]
Subject: Re: [iText-questions] Signing a PDF file with a digital
signature
http://article.gmane.org/gmane.comp.windows.dotnet.itextsharp.
general/12
Paulo
----- Original Message -----
From: "Eliasen Jan" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Sunday, May 21, 2006 9:52 PM
Subject: [iText-questions] Signing a PDF file with a digital signature
Hi
I have been looking at http://itextpdf.sourceforge.net/howtosign.html
because I need to sign a PDF file programatically.
BUT, I need to do it using c# - so I have downloaded the iTextSharp
version 3.1.0 dll, and am trying to use it. But the classes used in
http://itextpdf.sourceforge.net/howtosign.html do not seem to appear
in this dll - or am I wrong?
Can anyone point me in the right direction? How do I sign a PDF file
using C#?
Thanks in advance!
Med venlig hilsen
________________________________________
Jan Eliasen
WM-data
Fredrik Bajers Vej 1
9220 Aalborg Øst
Tel.: +45 9630 5800, direkte: +45 9630 5818
Mobil: +45 2518 8024, fax: +45 9630 5805
mailto: [EMAIL PROTECTED]
http://www.wmdata.dk
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