HI, Kindly refer the following link that implements a minimal encryption over wrapfs. https://github.com/piekill/wrapfs
Go through the wrapfs_encrypt in wrapfs_readpage and wrapfs_decrypt in wrapfs_writepage. Regards, Saket Sinha On Fri, Jan 30, 2015 at 3:56 PM, Kunal Baweja <[email protected]> wrote: > Hi, > I am currently working on implementing a simple encrypted file system > using a stackable file system WrapFS <http://wrapfs.filesystems.org/>. In > order to do so, as I read in the WrapFS mailing list > <http://www.fsl.cs.sunysb.edu/pipermail/wrapfs/2011-November/000058.html> > one needs to implement address space operations, which I have done and > posted on my github at this link > <https://github.com/bawejakunal/wrapfs-addresspace-operations/blob/master/mmap.c> > and it works fine. But now when I am trying to modify the data before being > written in wrapfs_lower() function I get a blank output in files written > out. > Please guide where am I going wrong in modifying the data to be written > and what could be the best way to decrypt it ? > > Thanks > > *Kunal Baweja* > > Undergraduate B.E. (Hons.) Computer Science > Birla Institute Of Technology & Science, Pilani > K.K. Birla Goa Campus > +91 9049655665 > > _______________________________________________ > Kernelnewbies mailing list > [email protected] > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > >
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