gocryptfs/cryptfs, branch v0.6

Add EME filename encryption & enable it by default

2015-12-08T15:17:04+00:00

opensslGCM: preallocate buffer space, improves performance by 11%

2015-12-08T12:22:57+00:00

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

tests: add encryption benchmarks to cryptfs

2015-12-08T12:19:19+00:00

fallocate the space needed for the file header beforehand

2015-12-06T14:05:52+00:00

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.

init: create gocryptfs.diriv after creating gocryptfs.conf

2015-12-06T13:24:45+00:00

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.

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