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------- Additional comments from [EMAIL PROTECTED] Tue Apr 18 06:28:10 -0700 2006 ------- I send a mail to the [EMAIL PROTECTED] (http://gsl.openoffice.org/servlets/ReadMsg?list=dev&msgNo=1779) list, but no one commented, I'm going to write a few words here. The PDF spec I'm referring to is vers. 1.4. The encryption is detailed in section 3.5 of said spec. Not all the PDF file is encrypted: strings and streams composing the document are encrypted, the rest of the file is not encrypted. The streams must be encrypted after the filters are applied, and decrypted (by the viewer, not OOo) before the filters are applied. The encryption catalog defines the 'security handler' used to perform the encryption task. What PDF security handler OOo should support ? I think that the Standard Security Handler (3.5.2) would be sufficient. From what I've seen in the comments here seems that this is what the OOo users ask for. The building blocks needed to implement standard handler encryption are already present in the OOo source tree (MD5, ARCFOUR: both in sal/rlt IIRC). Are there any spec available re: PDF security ( e.g. implementation description as in http://specs.openoffice.org/appwide/security/Electronic_Signatures_and_Security.sxw for OOo ) ? ->pl. Implementation idea: all the crypt stuff should go to pdfwriter_impl.cxx, a good point to insert the crypt routines can be the PDFWriterImpl::writeBuffer method, using a flag to determine if the data must be encrypted. According to what I've seen so far, that method is the lowest level of data delivery before writing to a physical file. And what is the impact of PDF encryption wrt PDF/A ? You mentioned it in a former comment of this issue. I think I can start working on this issue, if nobody is working on it. --------------------------------------------------------------------- Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
