Problem checking whether a document has beensigned

[Johan Vromans <jvromans (at) squirrel.nl>]

"Paulo Soares" <psoares (at) consiste.pt> writes:

> I don't know if the bug is in Acrobat

No, it is not related to Acrobat.

> or in the JDK 

Presumably, see below.

> but what I do is to ask the certificates from the PKCS#7 using a jdk
> method.

More precisely: it is

  CertificateFactory cf = CertificateFactory.getInstance("X509");
  Collection col = cf.generateCertificates(new FileInputStream(certs[i]));

The second line throws the exception, but only on some
certificates/formats. Most of the times it works okay.
Tested with JDK 1.5.0_06, JDK 1.5.0_07 and JRE 6 Beta 2.

Maybe best is to catch the exception, and turn it into "Malformed
certificate (not CER/DER format)" or something alike.

> I know that it will work with bouncycastle.

Yes, I've not seen the error with BouncyCastle.

-- Johan

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