This commit implements support for externalIvChaining in
EncFSInputStream and EncFSOutputStream which causes a file's volume path
to change the initialization vector (IV) which is used for encrypting
and decrypting the file contents.
* EncFSFileInputStream now extends FilterInputStream
* EncFSFileOutputStream now extends FilterOutputStream
* EncFSInputStream now extends FilterInputStream
EncFSOutputStream was already using FilterOutputStream.
Unfortunate to have to do this, but with the new version of git diff
explicitly showing CRLF as ^M this was starting to get annoying. We
shall use Unix newline style in encfs-java going forward.
With network based file providers it is possible for the input stream's
read() function to return before reading a full block. The current code
treated such partial reads incorrectly by using stream decoding to
decode them. Fix is to keep reading until we either read a full block
or we hit the end of the input stream.
This is a massive commit serving a few purposes:
* Unify code formatting and style to conform to Eclipse formatting. We
will use this formatting from now on for all new code to have a
uniform codebase.
* Clean up API naming and remove redundancies. I've renamed a lot of
API functions to promote coherence across the codebase. I've also
removed some redundant API's to promote best practices.
* Improve JavaDoc coverage. This commit documents all public methods
within the library itself.
* Fix JavaDoc warnings.
The extra copy in EncFSInputStream wasn't necessary. Unfortunately the
copy in EncFSOutputStream can't be averted, but this commit moves it to
be in streamEncode() itself.
This commit implements the blockMACBytes and blockMACRandBytes options
that cause a header to be inserted in front of every file block
containing a MAC of the block (and optionally some random data).
Added support to EncFSConfig, EncFSConfigParser and EncFSConfigWriter
to recognize these options. Implemented the MAC computation,
verification and insertion in EncFSInputStream and EncFSOutputStream.
Added a new test volume configured with 8 bytes of MAC and 8 bytes of
random bytes as 'testvol-blockmac', and extended EncFSVolumeTest to
include a long file test that verifies the MAC computations.
