Re: Feasibility of creating signed PDF files

2002-07-18 Thread Keiron Liddle
On Wed, 2002-07-17 at 17:55, Miguel A Paraz wrote: > Thanks for the reply! > > My project is simpler - I only have to generate a signature for the stream, > not encrypt it. Same principle anyway. > I haven't started coding, but there is java.security.Signature.update(byte[]) > which is used t

Re: Feasibility of creating signed PDF files

2002-07-17 Thread Miguel A Paraz
On Wed, Jul 17, 2002 at 02:58:13PM +0200, Keiron Liddle wrote: > If I understand it properly you would need to add an Encrypt pdf object > that is referenced in the documents trailer dictionary. > The you would need to encrypt all pdf streams using the appropriate > algorithm. > If JCE can handle

Re: Feasibility of creating signed PDF files

2002-07-17 Thread Keiron Liddle
Hi, If I understand it properly you would need to add an Encrypt pdf object that is referenced in the documents trailer dictionary. The you would need to encrypt all pdf streams using the appropriate algorithm. If JCE can handle this then it would be used to encrypt the stream. Currently we have

Feasibility of creating signed PDF files

2002-07-17 Thread Miguel A Paraz
Hi, I'm looking into the feasibility of extending FOP to produce signed PDF files using the PDF Public-Key Digital Signature and Encryption Specification. What are in the issues in gluing together FOP and the JCE to produce this? Could I give the signing extension access to the entire document, t