gocryptfs/cryptfs, branch v0.5

Run go fmt

2015-11-29T20:55:20+00:00

Add single-element cache for DirIV lookup

2015-11-29T20:41:38+00:00

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

OpenDir performance: Read DirIV once and reuse it for all names

2015-11-29T19:03:37+00:00

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

Add "-scryptn" option that sets the cost parameter for scrypt

2015-11-29T17:53:40+00:00

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

tests: add scrypt benchmark

2015-11-29T13:50:02+00:00

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

diriv: fix readdir

2015-11-28T17:39:45+00:00

It decrypted all file names using the root directory iv

diriv: use "DirIV" flag to discern and support mounting old filesystems

2015-11-28T17:38:06+00:00

Run go fmt

2015-11-27T21:20:01+00:00

diriv: Define "DirIV" feature flag

2015-11-27T21:18:36+00:00

(unused so far)

diriv: Move WriteDirIV() to cryptfs; add locking to Mkdir, Rmdir

2015-11-27T20:48:58+00:00