On Sep 27, 5:02 am, Niknak <[email protected]> wrote: > Hi there, > > I'm currently having some issues with the AES-CTR implementation, no > doubt I'm missing some crucial step, but it seems that the counter in > my IV is not being incremented with every block. > > I'm calling ProcessData to perform encryption on the blocks of data as > I'm currently integrating it into an existing system. > > I know something isn't quite right as when I attempt to decrypt using > WinZip/7Zip etc. it only manages to do the first block of any file, > everything after that fails with a password mismatch. I assume this > is IV related. If you are using ProcessData directly, I believe you need to manually increment the IV for each block processed. See http://www.mail-archive.com/[email protected]/msg05066.html for inspiration.
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