Hello everybody!
I've faced with problem similar to described here:
26 Oct 2005
http://www.mail-archive.com/[email protected]/msg19419.html
If I'm using 1k length private key, everything is Ok, but if I try to
use 2k length key, I get this:
Exception in thread "main" java.lang.IllegalArgumentException: The key
/Contents is too big. Is 522, reserved 264
at
com.lowagie.text.pdf.PdfSignatureAppearance.close(PdfSignatureAppearance.java:1040)
My code is based on receipt from
http://itextpdf.sourceforge.net/howtosign.html#signextstd
Does anybody faced with such problem or knew how to deal with it?
Here is a part of my code:
....
KeyStore ks = KeyStore.getInstance("pkcs12");
ks.load(new FileInputStream(KeyFileName), Pass.toCharArray());
String alias = (String) ks.aliases().nextElement();
PrivateKey key =
(PrivateKey)ks.getKey(alias,Pass.toCharArray());
Certificate[] chain = ks.getCertificateChain(alias);
PdfReader reader = new PdfReader(InFileName);
FileOutputStream fout = new FileOutputStream(OutFileName);
PdfStamper stp = PdfStamper.createSignature(reader,fout,'\0');
PdfSignatureAppearance sap = stp.getSignatureAppearance();
sap.setCrypto(key,chain, null,
PdfSignatureAppearance.SELF_SIGNED);
sap.setReason(Reason);
sap.setLocation(Location);
if (isVisible)
sap.setVisibleSignature(new Rectangle(475,15,575,115),
1, null);
sap.setExternalDigest(new byte[128], null, "RSA");
sap.preClose();
PdfPKCS7 sig = sap.getSigStandard().getSigner();
Signature sign = Signature.getInstance("SHA1withRSA");
sign.initSign(key);
byte buf[] = new byte[8192];
int n;
InputStream inp = sap.getRangeStream();
while ((n = inp.read(buf)) > 0) {
sign.update(buf,0,n);
}
sig.setExternalDigest(sign.sign(), null, "RSA");
PdfDictionary dic = new PdfDictionary();
dic.put(PdfName.CONTENTS, new
PdfString(sig.getEncodedPKCS1()).setHexWriting(true));
sap.setCertified(true);
sap.close(dic);
...
-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
iText-questions mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/itext-questions
