[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]
Subject: Fwd: OASIS and encryption
Hello, I was asked to forward you the following questions, so that we can implement OASIS-compatible encryption support in KOffice. ---------- Forwarded Message ---------- Subject: OASIS queries Date: Wednesday 25 August 2004 15:23 From: Brad Hards <bradh@frogmouth.net> To: David Faure <faure@kde.org> David, Can you make the following queries to the OASIS people for me? I'm looking at office-spec-1.0-cd-1.pdf Section 16.3, and having a bit of trouble with understanding how to decrypt a file. I understand that each file is seperately compressed and then encrypted before being stored. I understand that I need to extract the salt and initialisation vectors for each file from the META/manifest.xml file, and base64 decode them before applying. I understand that I need to use PKCS#5 / PBKDF2 to combine the SHA1 hash of the user-provided password with the salt. I don't know what the pseudo-random function for PBKDF2 is though. Is it just HMAC-SHA-1? Can I have some test vectors for the PBKDF2 functions? Brad ------------------------------------------------------- -- David Faure, faure@kde.org, sponsored by Trolltech to work on KDE, Konqueror (http://www.konqueror.org), and KOffice (http://www.koffice.org).
[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]