Hi,
I have a similar problem.
using:
itext-2.1.0
sun java-16_06
opensuse-10.3 last updated from internet
windows-xp last update from WindowsUpdate
problem: random arrayIndexOutOfBounds exception as I close stp.
I do not know when it is going to happen, actually.
If I run the program 20 times it may occur 2 and sometimes none.
It is a really strange error.
my code:
public void setSignature(String fileName) throws Exception {
// tmp file
String pdf = new TextBuilder(fileName.substring(0,
fileName.lastIndexOf(".") + 1)).append("fpdf")
.toString();
String keystore;
InputStream in;
if ((getProperty("PASSWORDK").length() != 0) &&
(getProperty("KEYSTORE").length() != 0) &&
(getProperty("PASSWORD").length() != 0)) {
KeyStore ks =
KeyStore.getInstance(KeyStore.getDefaultType());
keystore = new TextBuilder(AswirP.ETC_FILE).append(
File.separator).append(getProperty("KEYSTORE"))
.toString();
ks.load(in = new FileInputStream(keystore),
getProperty("PASSWORDK").toCharArray());
in.close();
String alias = (String) ks.aliases().nextElement();
PrivateKey key = (PrivateKey) ks.getKey(alias,
getProperty("PASSWORD").toCharArray());
Certificate[] chain = ks.getCertificateChain(alias);
PdfReader reader = new PdfReader(nombreFichero);
FileOutputStream fout = new FileOutputStream(pdf);
PdfStamper stp = PdfStamper.createSignature(reader, fout,
'\0');
stp.setEncryption("".getBytes(),
getProperty("PASSWORD").getBytes(),
PdfWriter.ALLOW_PRINTING | PdfWriter.ALLOW_SCREENREADERS
|
PdfWriter.ALLOW_DEGRADED_PRINTING, true);
PdfSignatureAppearance sap = stp.getSignatureAppearance();
sap.setCrypto(key, chain, null,
PdfSignatureAppearance.SELF_SIGNED);
1409: stp.close();
File newFile = new File(pdf);
new File(fileName).delete();
newFile.renameTo(new File(fileName));
}
error:
java.lang.ArrayIndexOutOfBoundsException
at java.lang.System.arraycopy(Native Method)
at com.lowagie.text.pdf.PdfStamper.close(Unknown Source)
at com.apl.aswir.tools.AswirPdf.setSignature(AswirPdf.java:1409)
Alan Klikic-2 wrote:
>
> Hi.
>
>
>
> Can we sign pdf file using iText with key (size=2048 Bits).
>
> I tryed like this (part of code):
>
>
>
> ...
>
>
>
> PdfSigGenericPKCS genericPKCS = pdfSignatureAppearance
>
>
> .getSigStandard();
>
>
>
> PdfLiteral pdfLiteral = (PdfLiteral) genericPKCS.get(PdfName.CONTENTS);
>
>
>
> byte[] outc = new byte[(pdfLiteral.getPosLength()-2)/2];
>
> PdfPKCS7 sig = genericPKCS.getSigner();
>
>
>
> sig.setExternalDigest(signature, hash, "RSA");
>
> PdfDictionary pdfDictionary = new PdfDictionary();
>
> byte[] ssig = sig.getEncodedPKCS7();
>
>
>
> System.arraycopy(ssig, 0, outc, 0, ssig.length);
>
>
>
> pdfDictionary.put(PdfName.CONTENTS, new
> PdfString(outc).setHexWriting(true));
>
>
>
> pdfSignatureAppearance.close(pdfDictionary);
>
>
>
> ...
>
>
>
> and i get ArrayIndexOutOfBoundsException because outc bytes size is
> smaller than ssig bytes size.
>
>
>
> If i put
>
> byte[] outc = new byte[pdfLiteral.getPosLength()]; in code instead of
>
> byte[] outc = new byte[(pdfLiteral.getPosLength()-2)/2];
>
>
>
> i get this exception
>
>
>
>
>
> java.lang.IllegalArgumentException: The key /Contents is too big. Is
> 11074, reserved 5536
>
> at com.lowagie.text.pdf.PdfSignatureAppearance.close(Unknown
> Source)
>
> at
> hr.logos.vasuite.luis.modules.pdf.PDFStamper.signPDF(PDFStamper.java:265
> )
>
> at
> hr.logos.vasuite.luis.modules.pdf.PDFTimerOutModule.execute(PDFTimerOutM
> odule.java:284)
>
> at hr.logos.vasuite.luis.main.Job.execute(Job.java:286)
>
> at
> hr.logos.vasuite.luis.server.TimerServer.run(TimerServer.java:43)
>
> at
> hr.logos.util.RunnableStarter$WrappedRunnable.run(RunnableStarter.java:3
> 6)
>
> at java.lang.Thread.run(Unknown Source)
>
>
>
> That means that when i'm using 2k key to sign, encoded PKSC7 bytes size
> (11074) iz greater than outc bytes size. Outc should be less than
> reserved (5536).
>
>
>
> When i use smaller key in first example, it works fine (outc is greater
> than ssig).
>
> Thanx,
>
> Alan
>
>
>
>
>
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