Digital Signature in PDF with BIRT

Pico

Hi,

Anyone knows if it`s possible generate pdf with digital signature usin BIRT?

Thanks in advance.

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mwilliams

Hi Pico,

Can you explain what you're wanting exactly for your digital signature?

Elias123

Please I need to find out how to generate and attach a
digital signature to a report?

The standard to use is X 509.

Please I need your help urgently.

Thank you in advance!

kclark

You should be able to do this with iText. Here's a snippet of the code that will sign the PDF 
 
<pre class='_prettyXprint _lang-auto _linenums:0'>
KeyStore ks = KeyStore.getInstance("pkcs12");
ks.load(new FileInputStream("my_private_key.pfx"), "my_password".toCharArray());
String alias = (String)ks.aliases().nextElement();
PrivateKey key = (PrivateKey)ks.getKey(alias, "my_password".toCharArray());
Certificate[] chain = ks.getCertificateChain(alias);
PdfReader reader = new PdfReader("original.pdf");
FileOutputStream fout = new FileOutputStream("signed.pdf");
PdfStamper stp = PdfStamper.createSignature(reader, fout, '\0');
PdfSignatureAppearance sap = stp.getSignatureAppearance();
sap.setCrypto(key, chain, null, PdfSignatureAppearance.WINCER_SIGNED);
sap.setReason("I'm the author");
sap.setLocation("Lisbon");
// comment next line to have an invisible signature
sap.setVisibleSignature(new Rectangle(100, 100, 200, 200), 1, null);
stp.close();
</pre>
 
There appears to be a lot of good information <a class='bbc_url' href='http://itextpdf.sourceforge.net/howtosign.html'>at this sourceforge page</a>

Elias123

Sorry I could not understand what is iText, is it a software to use with BIRT? Where should I insert this code?

If you can send me the steps showing how to configure the report for this purpose.

Thank you very much for your help.

smgomes

<blockquote class='ipsBlockquote' data-author="'Elias123'" data-cid="110638" data-time="1350544234" data-date="18 October 2012 - 12:10 AM">
Sorry I could not understand what is iText, is it a software to use with BIRT? Where should I insert this code? 
 
If you can send me the steps showing how to configure the report for this purpose. 
 
Thank you very much for your help. </blockquote>
 
iText is a library that allows you to create and manipulate PDF documents. With BIRT you create your report (PDF) so after that you can use iText to attach a digital signature, downlaod the JAR from <a class='bbc_url' href='http://itextpdf.com/'>http://itextpdf.com/</a> and add to your project

Elias123

Hello,

I included the JAR libraries in BIRT, still have to insert the below code, where should I insert it??

KeyStore ks = KeyStore.getInstance("pkcs12");
ks.load(new FileInputStream("my_private_key.pfx"), "my_password".toCharArray());
String alias = (String)ks.aliases().nextElement();
PrivateKey key = (PrivateKey)ks.getKey(alias, "my_password".toCharArray());
Certificate[] chain = ks.getCertificateChain(alias);
PdfReader reader = new PdfReader("original.pdf");
FileOutputStream fout = new FileOutputStream("signed.pdf");
PdfStamper stp = PdfStamper.createSignature(reader, fout, '\0');
PdfSignatureAppearance sap = stp.getSignatureAppearance();
sap.setCrypto(key, chain, null, PdfSignatureAppearance.WINCER_SIGNED);
sap.setReason("I'm the author");
sap.setLocation("Lisbon");
// comment next line to have an invisible signature
sap.setVisibleSignature(new Rectangle(100, 100, 200, 200), 1, null);
stp.close();

Thank you very much for your kind help!

Elias123

<blockquote class='ipsBlockquote' data-author="'smgomes'" data-cid="110644" data-time="1350550521" data-date="18 October 2012 - 01:55 AM">
iText is a library that allows you to create and manipulate PDF documents. With BIRT you create your report (PDF) so after that you can use iText to attach a digital signature, downlaod the JAR from <a class='bbc_url' href='http://itextpdf.com/'>http://itextpdf.com/</a> and add to your project

</blockquote>
 
 
I have added the jar files in BIRT and I inserted the code in initialize, but I couldn't! 
 
It says that there is a ';' missing. Please check the attached screenshot. 
 
Plus I couldn't find what should be the instance (first line) 
 
 
Any help for this?