Commit Graph

7 Commits

Author SHA1 Message Date
Jakob Unterwurzacher 76311b60f2 Add file header (on-disk-format change)
Format: [ "Version" uint16 big endian ] [ "Id" 16 random bytes ]

Quoting SECURITY.md:

* Every file has a header that contains a 16-byte random *file id*
* Each block uses the file id and its block number as GCM *authentication data*
 * This means the position of the blocks is protected as well. The blocks
   can not be reordered or copied between different files without
   causing an decryption error.
2015-11-01 01:38:27 +01:00
Jakob Unterwurzacher 440abcbac6 Add test.bash
...also adapt the cryptfs tests for 256 bit long keys
2015-10-07 22:09:34 +02:00
Jakob Unterwurzacher 89fef80d32 Run go fmt 2015-10-04 14:49:47 +02:00
Jakob Unterwurzacher c859f0b2dc intraBlock: Rename Offset to Skip
"Offset" is unclear whether it is an offset from the start of file
or start of block. "Skip" seems much better.
2015-10-04 14:24:43 +02:00
Jakob Unterwurzacher 5229b8f5f5 Add BlockNoPlainOff() and BlockNoCipherOff() + test
Also, fix key, it is now []byte, not [16]byte
2015-10-04 11:03:40 +02:00
Jakob Unterwurzacher 28cdff5889 tests: add TestCiphertextRange 2015-09-08 22:36:38 +02:00
Jakob Unterwurzacher b65882985d Add tests for name encryption and byte range splitting 2015-09-07 21:25:05 +02:00