hardcoresushi/libgocryptfs
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24 Commits

Author SHA1 Message Date
Jakob Unterwurzacher
d74cf7c723 speed: add per-blocksize GoGCM benchmarks 
Only visible when you run "go test -bench" like this:

$ cd gocryptfs/internal/speed
$ go test -bench .

goos: linux
goarch: amd64
pkg: github.com/rfjakob/gocryptfs/v2/internal/speed
cpu: Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz
BenchmarkStupidGCM-4              	  202352	      5937 ns/op	 689.96 MB/s
BenchmarkStupidGCMDecrypt-4       	  206023	      5782 ns/op	 708.38 MB/s
BenchmarkGoGCM-4                  	  291878	      4098 ns/op	 999.45 MB/s
BenchmarkGoGCMBlockSize/1024-4    	 1000000	      1151 ns/op	 889.88 MB/s
BenchmarkGoGCMBlockSize/2048-4    	  561182	      2134 ns/op	 959.60 MB/s
BenchmarkGoGCMBlockSize/4096-4    	  292057	      4101 ns/op	 998.87 MB/s
BenchmarkGoGCMBlockSize/8192-4    	  149216	      8031 ns/op	1020.09 MB/s
BenchmarkGoGCMBlockSize/16384-4   	   75361	     15917 ns/op	1029.34 MB/s
BenchmarkGoGCMBlockSize/32768-4   	   37916	     31649 ns/op	1035.35 MB/s
BenchmarkGoGCMBlockSize/65536-4   	   19005	     63117 ns/op	1038.33 MB/s
BenchmarkGoGCMBlockSize/131072-4  	    9498	    126166 ns/op	1038.89 MB/s
BenchmarkGoGCMBlockSize/262144-4  	    4755	    252149 ns/op	1039.64 MB/s
BenchmarkGoGCMBlockSize/524288-4  	    2377	    504108 ns/op	1040.03 MB/s
BenchmarkGoGCMBlockSize/1048576-4 	    1188	   1008675 ns/op	1039.56 MB/s
BenchmarkGoGCMDecrypt-4           	  294664	      4059 ns/op	1009.02 MB/s
BenchmarkAESSIV-4                 	   46498	     25432 ns/op	 161.05 MB/s
BenchmarkAESSIVDecrypt-4          	   46908	     25509 ns/op	 160.57 MB/s
BenchmarkXchacha-4                	  244473	      4894 ns/op	 836.97 MB/s
BenchmarkXchachaDecrypt-4         	  249710	      4798 ns/op	 853.75 MB/s
BenchmarkStupidXchacha-4          	  166988	      7101 ns/op	 576.79 MB/s
BenchmarkStupidXchachaDecrypt-4   	  163093	      7240 ns/op	 565.72 MB/s
BenchmarkStupidChacha-4           	  184172	      6527 ns/op	 627.58 MB/s
BenchmarkStupidChachaDecrypt-4    	  179796	      6659 ns/op	 615.11 MB/s
PASS
ok  	github.com/rfjakob/gocryptfs/v2/internal/speed	30.068s
 2023-03-08 16:54:56 +01:00
Christian Stewart
7ee4c8e9c3 go.mod: fix jacobsa/crypto build on riscv64 
Replace dependency jacobsa/crypto with a fork with support for riscv64.

Issue: https://github.com/rfjakob/gocryptfs/issues/666

Upstream PR: https://github.com/jacobsa/crypto/issues/13

Unaddressed on jacobsa/crypto:

https://github.com/jacobsa/crypto/pull/14#issuecomment-1182744229

Signed-off-by: Christian Stewart <christian@paral.in>
 2022-12-21 18:38:11 +01:00
Jakob Unterwurzacher
db1824a23a cryptocore: disentangle algorithm / library implementation name 
Used in gocryptfs-xray, and will also be used in -info.
 2021-09-28 18:09:31 +02:00
Jakob Unterwurzacher
2d0ba24eca -speed: print cpu model 
When somebody posts "gocryptfs -speed" results, they are
most helpful together with the CPU model. Add the cpu model
to the output.

Example:

$ ./gocryptfs -speed
gocryptfs v2.2.0-beta1-5-g52b0444-dirty; go-fuse v2.1.1-0.20210825171523-3ab5d95a30ae; 2021-09-14 go1.17.1 linux/amd64
cpu: Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz; with AES acceleration
AES-GCM-256-OpenSSL       	 862.79 MB/s
AES-GCM-256-Go            	 997.71 MB/s	(selected in auto mode)
AES-SIV-512-Go            	 159.58 MB/s
XChaCha20-Poly1305-OpenSSL	 729.65 MB/s
XChaCha20-Poly1305-Go     	 843.97 MB/s	(selected in auto mode)
 2021-09-14 18:58:22 +02:00
Jakob Unterwurzacher
cdbc48fe29 -speed: drop useless tab at end of line 2021-09-14 10:15:18 +02:00
Jakob Unterwurzacher
d023cd6c95 cli: drop -forcedecode flag 
The rewritten openssl backend does not support this flag anymore,
and it was inherently dangerour. Drop it (ignored for compatibility)
 2021-09-10 12:14:19 +02:00
Jakob Unterwurzacher
ad21647f25 -speed: show which xchacha implementation is preferred 2021-09-08 20:46:52 +02:00
Jakob Unterwurzacher
1a58667293 stupidgcm: add PreferOpenSSL{AES256GCM,Xchacha20poly1305} 
Add PreferOpenSSLXchacha20poly1305,
rename PreferOpenSSL -> PreferOpenSSLAES256GCM.
 2021-09-08 19:48:13 +02:00
Jakob Unterwurzacher
85c2beccaf stupidgcm: normalize constructor naming 
New() -> NewAES256GCM()

Also add missing NewChacha20poly1305
constructor in without_openssl.go.
 2021-09-07 18:15:04 +02:00
Jakob Unterwurzacher
3e27acb989 speed: add decryption benchmarks 
gocryptfs/internal/speed$ go test -bench .
goos: linux
goarch: amd64
pkg: github.com/rfjakob/gocryptfs/v2/internal/speed
cpu: Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz
BenchmarkStupidGCM-4              	  263742	      4523 ns/op	 905.61 MB/s
BenchmarkStupidGCMDecrypt-4       	  204858	      5779 ns/op	 708.76 MB/s
BenchmarkGoGCM-4                  	  291259	      4095 ns/op	1000.25 MB/s
BenchmarkGoGCMDecrypt-4           	  293886	      4061 ns/op	1008.53 MB/s
BenchmarkAESSIV-4                 	   46537	     25538 ns/op	 160.39 MB/s
BenchmarkAESSIVDecrypt-4          	   46770	     25627 ns/op	 159.83 MB/s
BenchmarkXchacha-4                	  243619	      4893 ns/op	 837.03 MB/s
BenchmarkXchachaDecrypt-4         	  248857	      4793 ns/op	 854.51 MB/s
BenchmarkStupidXchacha-4          	  213717	      5558 ns/op	 736.99 MB/s
BenchmarkStupidXchachaDecrypt-4   	  176635	      6782 ns/op	 603.96 MB/s
PASS
ok  	github.com/rfjakob/gocryptfs/v2/internal/speed	12.871s
 2021-09-07 18:14:05 +02:00
Jakob Unterwurzacher
5046962634 speed: add bEncrypt helper, reuse dst buffer 
The bEncrypt helper massively deduplicates the code,
and reusing the dst buffer gives higher performance,
and that's what gocryptfs does in normal operation via
sync.Pool.

$ benchstat old.txt new.txt
name             old time/op   new time/op    delta
StupidGCM-4       6.24µs ± 1%    4.65µs ± 0%  -25.47%  (p=0.008 n=5+5)
GoGCM-4           4.90µs ± 0%    4.10µs ± 0%  -16.44%  (p=0.008 n=5+5)
AESSIV-4          26.4µs ± 0%    25.6µs ± 0%   -2.90%  (p=0.008 n=5+5)
Xchacha-4         5.76µs ± 0%    4.91µs ± 0%  -14.79%  (p=0.008 n=5+5)
StupidXchacha-4   7.24µs ± 1%    5.48µs ± 0%  -24.33%  (p=0.008 n=5+5)

name             old speed     new speed      delta
StupidGCM-4      656MB/s ± 1%   880MB/s ± 0%  +34.15%  (p=0.008 n=5+5)
GoGCM-4          835MB/s ± 0%  1000MB/s ± 0%  +19.68%  (p=0.008 n=5+5)
AESSIV-4         155MB/s ± 0%   160MB/s ± 0%   +2.99%  (p=0.008 n=5+5)
Xchacha-4        711MB/s ± 0%   834MB/s ± 0%  +17.35%  (p=0.008 n=5+5)
StupidXchacha-4  565MB/s ± 1%   747MB/s ± 0%  +32.15%  (p=0.008 n=5+5)
 2021-09-07 18:14:05 +02:00
Jakob Unterwurzacher
9e1dd73e55 -speed: add XChaCha20-Poly1305-OpenSSL 
$ ./gocryptfs -speed
gocryptfs v2.1-56-gdb1466f-dirty.stupidchacha; go-fuse v2.1.1-0.20210825171523-3ab5d95a30ae; 2021-09-02 go1.17 linux/amd64
AES-GCM-256-OpenSSL       	 529.53 MB/s
AES-GCM-256-Go            	 833.85 MB/s	(selected in auto mode)
AES-SIV-512-Go            	 155.27 MB/s
XChaCha20-Poly1305-Go     	 715.33 MB/s	(use via -xchacha flag)
XChaCha20-Poly1305-OpenSSL	 468.94 MB/s

https://github.com/rfjakob/gocryptfs/issues/452
 2021-09-07 18:14:05 +02:00
Jakob Unterwurzacher
5f1094b164 -speed: note that -xchacha is selectable 2021-08-24 14:02:12 +02:00
Jakob Unterwurzacher
dfb7fae52a speed: use algo names from cryptocore 2021-08-23 22:13:49 +02:00
Jakob Unterwurzacher
69d88505fd go mod: declare module version v2 
Our git version is v2+ for some time now, but go.mod
still declared v1. Hopefully making both match makes
https://pkg.go.dev/github.com/rfjakob/gocryptfs/v2 work.

All the import paths have been fixed like this:

  find . -name \*.go | xargs sed -i s%github.com/rfjakob/gocryptfs/%github.com/rfjakob/gocryptfs/v2/%
 2021-08-23 15:05:15 +02:00
Jakob Unterwurzacher
5da20da977 -speed: note that XChaCha20 is not selectable 
This is unclear to users, as seen on
https://github.com/rfjakob/gocryptfs/issues/452#issuecomment-828836651
 2021-05-18 09:53:23 +02:00
Jakob Unterwurzacher
194030f18a speed: add XChaCha20-Poly1305-Go 
https://github.com/rfjakob/gocryptfs/issues/452
 2020-04-13 14:54:04 +02:00
Jakob Unterwurzacher
f82b9caa9c speed: add code comments 2020-02-29 21:26:28 +01:00
Jakob Unterwurzacher
d5ce340c02 merge prefer_openssl package into stupidgcm 
Now that I have discovered golang.org/x/sys/cpu and that Go
versions below 1.6 are uncommon, there was not much useful
code left in prefer_openssl.

Merge the remains into stupidgcm.
 2020-02-15 17:21:30 +01:00
Jakob Unterwurzacher
edb3e19cb5 fix golint complaints 2017-04-29 14:50:58 +02:00
danim7
f1945c4daa Add -forcedecode 
Force decode of encrypted files even if the integrity check fails, instead of
failing with an IO error. Warning messages are still printed to syslog if corrupted
files are encountered.
It can be useful to recover files from disks with bad sectors or other corrupted
media.

Closes https://github.com/rfjakob/gocryptfs/pull/102 .
 2017-04-23 23:11:56 +02:00
Jakob Unterwurzacher
966308eeb7 Drop Go 1.4 compatability code everywhere 
Yields a nice reduction in code size.
 2017-03-05 17:44:14 +01:00
Jakob Unterwurzacher
477071d673 speed: fix build for Go 1.4 and lower 
Old Go versions miss cipher.NewGCMWithNonceSize, which causes:

  internal/speed/speed.go:95: undefined: cipher.NewGCMWithNonceSize
 2017-02-23 00:04:51 +01:00
Jakob Unterwurzacher
1e03e059fa Implement "gocryptfs -speed" 
A crypto benchmark mode like "openssl speed".

Example run:

  $ ./gocryptfs -speed
  AES-GCM-256-OpenSSL 	 180.89 MB/s	(selected in auto mode)
  AES-GCM-256-Go      	  48.19 MB/s
  AES-SIV-512-Go      	  37.40 MB/s
 2017-02-22 23:56:34 +01:00