Thank you Tilman.
I have tried this:
Security.addProvider(new BouncyCastleProvider());
// load the keystore
KeyStore keystore = KeyStore.getInstance("PKCS12");
char pass[] = "xxxxxx".toCharArray();
keystore.load(new FileInputStream("./keystore/cert.pfx"), pass);
Enumeration<String> aliases = keystore.aliases();
String alias;
if (aliases.hasMoreElements()) {
alias = aliases.nextElement();
} else {
throw new KeyStoreException("Keystore is empty");
}
PrivateKey pk = ((PrivateKey) keystore.getKey(alias, pass));
Certificate[] certificateChain = keystore.getCertificateChain(alias);
Certificate certificate = certificateChain[0];
PublicKeyProtectionPolicy pkpp = new PublicKeyProtectionPolicy();
PublicKeyRecipient pkr = new PublicKeyRecipient();
AccessPermission ap = new AccessPermission();
ap.setCanFillInForm(true);
ap.setCanModify(false);
ap.setCanModifyAnnotations(false);
pkr.setPermission(ap);
pkr.setX509((X509Certificate) certificate);
pkpp.setEncryptionKeyLength(128); // no support for 256
pkpp.addRecipient(pkr);
PDDocument doc = PDDocument.load(input);
doc.protect(pkpp);
doc.save(output);
but when I try to open the PDF with Adobe Reader it says that I don't have
the ID for it.
I just want to apply a certify signature, not to encrypt.
Do you have any other hint?
Thanks.
On Wed, Oct 12, 2016 at 1:15 PM, Tilman Hausherr <thaush...@t-online.de>
wrote:
> Am 12.10.2016 um 17:17 schrieb Jonathan Barbero:
>
>> Hi,
>>
>> I have been playing with the signing example of PDF Box 2.0.3.
>> I would like to apply a certification signature (
>> https://helpx.adobe.com/acrobat/kb/certificate-signatures.html )
>> How could I do ? Do you have any example ?
>>
>> Thanks,
>> Jonathan.
>>
>>
> There is no example, but the test TestPublicKeyEncryption.java from the
> source download should help too.
>
> https://svn.apache.org/viewvc/pdfbox/trunk/pdfbox/src/test/j
> ava/org/apache/pdfbox/encryption/TestPublicKeyEncryption.java?view=markup
>
> There's also a segment in the Encrypt command line tool:
>
>
> if( certFile != null )
> {
> PublicKeyProtectionPolicy ppp = new
> PublicKeyProtectionPolicy();
> PublicKeyRecipient recip = new
> PublicKeyRecipient();
> recip.setPermission(ap);
>
>
> CertificateFactory cf =
> CertificateFactory.getInstance("X.509");
>
> InputStream inStream = null;
> try
> {
> inStream = new FileInputStream(certFile);
> X509Certificate certificate =
> (X509Certificate)cf.generateCertificate(inStream);
> recip.setX509(certificate);
> }
> finally
> {
> if (inStream != null)
> {
> inStream.close();
> }
> }
>
> ppp.addRecipient(recip);
>
> ppp.setEncryptionKeyLength(keyLength);
>
> document.protect(ppp);
> }
> else
> {
> .....
> }
> document.save( outfile );
> }
>
>
> Tilman
>
>
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