hardcoresushi/libgocryptfs
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Author SHA1 Message Date
Jakob Unterwurzacher
9419e7ae85 Update README + docs for v0.6 release 2015-12-08 16:41:45 +01:00
Jakob Unterwurzacher
e3f35d38b5 tests: add v0.6 example filesystem with EME 2015-12-08 16:17:19 +01:00
Jakob Unterwurzacher
c6dacd6f91 Add EME filename encryption & enable it by default 2015-12-08 16:17:04 +01:00
Jakob Unterwurzacher
ff8c81f95b go fmt 2015-12-08 13:51:06 +01:00
Jakob Unterwurzacher
f4ae0304af opensslGCM: preallocate buffer space, improves performance by 11% 
Results of cryptfs/openssl_benchmark.bash :

Before:
  BenchmarkEnc_OpenSSL_4k_AES256_nonce96-2 	   50000	     31802 ns/op	 127.28 MB/s
  BenchmarkEnc_OpenSSL_4k_AES256_nonce128-2	   50000	     32110 ns/op	 126.06 MB/s

After:
  BenchmarkEnc_OpenSSL_4k_AES256_nonce96-2 	   50000	     28612 ns/op	 141.47 MB/s
  BenchmarkEnc_OpenSSL_4k_AES256_nonce128-2	   50000	     28613 ns/op	 141.47 MB/s
 2015-12-08 13:22:57 +01:00
Jakob Unterwurzacher
c6a6641b58 tests: add encryption benchmarks to cryptfs 2015-12-08 13:19:19 +01:00
Jakob Unterwurzacher
21abf57abb Update README 
gocryptfs is no longer developed in gocryptfs because of the inconvenience
that you cannot mount a FUSE filesystem inside a FUSE mount
 2015-12-06 15:13:06 +01:00
Jakob Unterwurzacher
7375d86ada tests: add TestRename 2015-12-06 15:10:23 +01:00
Jakob Unterwurzacher
56888d83dd fallocate the space needed for the file header beforehand 
This makes sure writing to a file fails early if the underlying
filesystem does not support fallocate. It also prevents partial header
write due to ENOSPC.
 2015-12-06 15:05:52 +01:00
Jakob Unterwurzacher
edc289fb75 Fix rename, was broken broken by DirIV introduction 
As it was, CIPHERDIR was prepended twice, causing every rename
to fail with ENOENT.
 2015-12-06 15:00:54 +01:00
Jakob Unterwurzacher
37c67393e6 tests: recreate v0.5 example filesystems with -scryptn=10 
Cuts the mount time in half, from 0.788s to 0.321s.
 2015-12-06 14:41:51 +01:00
Jakob Unterwurzacher
71b94828ed init: create gocryptfs.diriv after creating gocryptfs.conf 
Creating the config file can fail easily, for example if the
password is not entered the same twice. This would leave an
orphaned gocryptfs.diriv behind.
 2015-12-06 14:24:45 +01:00
Jakob Unterwurzacher
fc23aba65b performance.txt: link to linux-3.0.tar.gz 2015-12-04 22:45:16 +01:00
Jakob Unterwurzacher
353d29b502 Update manpage with -diriv and -scryptn 2015-12-04 22:41:14 +01:00
Jakob Unterwurzacher
018d047ab2 Show base64 encoding in filename encryption svg 2015-12-04 22:26:50 +01:00
Jakob Unterwurzacher
a6971ade94 svg: add colored annotations 
Also, show the IV in the master key decryption process
 2015-12-02 09:03:37 +01:00
Jakob Unterwurzacher
026ab56de4 Cut down the text in SECURITY.md, add graphs 2015-12-01 23:06:56 +01:00
Jakob Unterwurzacher
6515c8d42c Add svgs explaining the encryption steps 2015-12-01 22:54:40 +01:00
Jakob Unterwurzacher
2734dc81e5 Make sure MANPAGE-render.bash works when called from outside Documentation 2015-12-01 21:04:58 +01:00
Jakob Unterwurzacher
accf8144ca Move docs to Documentation folder 2015-12-01 18:19:24 +01:00
Jakob Unterwurzacher
cbb18380be Update README and SECURITY documents 2015-11-29 22:36:25 +01:00
Jakob Unterwurzacher
ce42a6f23d Run go fmt 2015-11-29 21:55:20 +01:00
Jakob Unterwurzacher
20b058a333 Add single-element cache for DirIV lookup 
Another 3x performance boost for applications that walk the
directory tree.

Excerpt from performance.txt:

VERSION         UNTAR    LS     RM
v0.4               48     1.5    5
v0.5-rc1           56     7     19
v0.5-rc1-1         54     4.1    9
v0.5-rc1-2         45     1.7	 3.4  <---- THIS VERSION
 2015-11-29 21:41:38 +01:00
Jakob Unterwurzacher
1d0a442405 OpenDir performance: Read DirIV once and reuse it for all names 
Formerly, we called decryptPath for every name.
That resulted in a directory walk that reads in all diriv files
on the way.

Massive improvement for RM and LS (check performance.txt for details)

VERSION         UNTAR   RM   LS
v0.4               48    5    1.5
v0.5-rc1           56   19    7
v0.5-rc1-1         54    9    4.1   <---- THIS VERSION
 2015-11-29 20:03:37 +01:00
Jakob Unterwurzacher
6f764b3867 Handle all operations except mounting without forking a child 
This saves 170ms for each start (why do we take 170ms to start up?)
and cuts down test time by 2 seconds.
 2015-11-29 19:09:12 +01:00
Jakob Unterwurzacher
bb116282b7 Add "-scryptn" option that sets the cost parameter for scrypt 
Use that option to speed up the automated tests by 7 seconds.

Before:
	ok  	github.com/rfjakob/gocryptfs/integration_tests	26.667s
After:
	ok  	github.com/rfjakob/gocryptfs/integration_tests	19.534s
 2015-11-29 18:53:40 +01:00
Jakob Unterwurzacher
71bfa1f0fb tests: add scrypt benchmark 
Times the impact of the parameter "N" to scrypt.

Results on a 2.7GHz Pentium G630:

gocryptfs/cryptfs$ go test -bench=.
PASS
BenchmarkScrypt10-2	     300	   6021435 ns/op ... 6ms
BenchmarkScrypt11-2	     100	  11861460 ns/op
BenchmarkScrypt12-2	     100	  23420822 ns/op
BenchmarkScrypt13-2	      30	  47666518 ns/op
BenchmarkScrypt14-2	      20	  92561590 ns/op ... 92ms
BenchmarkScrypt15-2	      10	 183971593 ns/op
BenchmarkScrypt16-2	       3	 368506365 ns/op
BenchmarkScrypt17-2	       2	 755502608 ns/op ... 755ms
ok  	github.com/rfjakob/gocryptfs/cryptfs	18.772s
 2015-11-29 14:50:02 +01:00
Jakob Unterwurzacher
eb38a36114 tests: add v0.5 example filesystem (with DirIV!) 2015-11-28 20:31:01 +01:00
Jakob Unterwurzacher
8766ab5472 tests: verify that symlinks work 2015-11-28 20:21:06 +01:00
Jakob Unterwurzacher
1fb349e97b diriv: also support old CBC symlink 2015-11-28 18:39:45 +01:00
Jakob Unterwurzacher
01141f8b5e diriv: fix Symlink() and Readlink() 
Both were missing adaptions for diriv usage resulting in broken
functionality
 2015-11-28 18:39:45 +01:00
Jakob Unterwurzacher
3b2143bafc diriv: fix readdir 
It decrypted all file names using the root directory iv
 2015-11-28 18:39:45 +01:00
Jakob Unterwurzacher
fe7355f9ee diriv: use "DirIV" flag to discern and support mounting old filesystems 2015-11-28 18:38:06 +01:00
Jakob Unterwurzacher
b3d96b6a20 main: pass args struct instead of having a huge function call 2015-11-27 22:30:38 +01:00
Jakob Unterwurzacher
a04a92cdab Run go fmt 2015-11-27 22:20:01 +01:00
Jakob Unterwurzacher
6acd772cf9 diriv: Define "DirIV" feature flag 
(unused so far)
 2015-11-27 22:18:36 +01:00
Jakob Unterwurzacher
798e5eb5e7 tests: create all-zero gocryptfs.diriv in resetTmpDir() 
Tests were failing because this file was missing
 2015-11-27 21:51:40 +01:00
Jakob Unterwurzacher
bdd9249a52 diriv: Move WriteDirIV() to cryptfs; add locking to Mkdir, Rmdir 2015-11-27 21:48:58 +01:00
Jakob Unterwurzacher
decfc1ab79 diriv: Convert filename encryption users to diriv 2015-11-27 00:03:10 +01:00
Jakob Unterwurzacher
fe2fcf6c16 diriv: Transactionally delete gocryptfs.diriv in Rmdir 2015-11-25 22:17:42 +01:00
Jakob Unterwurzacher
b5bf59a31d tests: check Mkdir and Rmdir 2015-11-25 22:08:07 +01:00
Jakob Unterwurzacher
4d466c3412 diriv: Create gocryptfs.diriv in every directory 2015-11-25 20:57:16 +01:00
Jakob Unterwurzacher
d8bf6e7836 Tighten file permissions on gocryptfs.conf 
This file should only be readable by the owner and never be written to.
 2015-11-25 20:57:16 +01:00
Jakob Unterwurzacher
df46548be6 Print newline after gocryptfs.conf not found error 2015-11-25 20:57:16 +01:00
Jakob Unterwurzacher
dce0564f2a Add drone.io CI config 2015-11-22 21:07:38 +01:00
Jakob Unterwurzacher
8f069eabe4 README: link to use .../tags instead of ../releases 
Using github "release" function means that the changelog is buried in the
github webinterface. The changelog is now instead included in README.md.
 2015-11-15 16:10:45 +01:00
Jakob Unterwurzacher
2efd25eefe Update README for v0.4 
Also, add short comments to the top of main_test.go and
performance_test.go.
 2015-11-15 16:06:19 +01:00
Jakob Unterwurzacher
40882c6e49 tests: add example_filesystems, test password and -masterkey mount 2015-11-15 15:05:15 +01:00
Jakob Unterwurzacher
296bdf3af2 CipherSizeToPlainSize: Handle illegal states 
A file never gets a cipherSize <= HEADER_LEN in normal operation.
However, this can happen if header write it interrupted or the
underlying filesystem does not support fallocate.

Noticed while trying to store a CIPHERDIR in another gocryptfs mount
(gocryptfs does not support fallocate)
 2015-11-15 14:15:21 +01:00
Jakob Unterwurzacher
09499be6e9 Move "Debug output enabled" after forkChild() to remove duplicate output 2015-11-15 13:56:01 +01:00