hardcoresushi/libgocryptfs
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17 Commits

Author SHA1 Message Date
Sebastian Lackner
f3c777d5ea main: Add '-devrandom' commandline option 
Allows to use /dev/random for generating the master key instead of the
default Go implementation. When the kernel random generator has been
properly initialized both are considered equally secure, however:

* Versions of Go prior to 1.9 just fall back to /dev/urandom if the
  getrandom() syscall would be blocking (Go Bug #19274)

* Kernel versions prior to 3.17 do not support getrandom(), and there
  is no check if the random generator has been properly initialized
  before reading from /dev/urandom

This is especially useful for embedded hardware with low-entroy. Please
note that generation of the master key might block indefinitely if the
kernel cannot harvest enough entropy.
 2017-11-21 23:37:06 +01:00
Jakob Unterwurzacher
9a0808b1ee configfile: HKDF feature flag should also be set for "-plaintextnames" 2017-03-07 21:05:45 +01:00
Jakob Unterwurzacher
9f17a78b4a configfile: enable HKDF and Raw64 feature flags by default 
Also adds a test to verify that they are set in new config
files.
 2017-03-07 20:56:50 +01:00
Jakob Unterwurzacher
6e9b6e17c3 tests: configfile: fix spurious test failure II 
internal/configfile/config_test.go:67: c declared and not used
 2017-03-05 23:24:47 +01:00
Jakob Unterwurzacher
b878306d2a tests: configfile: fix spurious test failure 
This test fails because Raw64 has been disabled for now.
 2017-03-05 23:15:50 +01:00
Jakob Unterwurzacher
decda6d255 configfile: switch on Raw64 by default 
As we have dropped Go 1.4 compatibility already, and will add
a new feature flag for gocryptfs v1.3 anyway, this is a good
time to enable Raw64 as well.
 2017-03-05 18:13:56 +01:00
Jakob Unterwurzacher
55d0523dbe tests: configfile: add missing newlines in verbose output 2017-02-16 19:45:20 +01:00
Jakob Unterwurzacher
2b991c9743 Add support for unpadded base64 filenames, "-raw64" 
Through base64.RawURLEncoding.

New command-line parameter "-raw64".
 2016-11-01 18:43:22 +01:00
Jakob Unterwurzacher
e9bb8b800c reverse: switch from GCM-SIV to AES-SIV 
GCM-SIV is not yet finalized, and the reference implemenation is
painfully slow at about 2 MB/s. Switch to AES-SIV.
 2016-09-26 23:25:13 +02:00
Jakob Unterwurzacher
2050c7f3b3 reverse: add gcmsiv flag and associated tests 2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher
5f726aaa9d contentenc: add GCM-SIV support 
Also add ReverseDummyNonce nonce generation.
 2016-09-25 16:43:17 +02:00
Jakob Unterwurzacher
3234b9b5ce tests: update config_test example files 
Recreate the files so they carry all feature flags.

Also, create them with "-scryptn 10" to speed up the tests.
 2016-06-16 23:19:05 +02:00
Jakob Unterwurzacher
6c3f97399a Rename internal "toggledlog" package to "tlog" 
tlog is used heavily everywhere and deserves a shorter name.

Renamed using sed magic, without any manual rework:

   find * -type f -exec sed -i 's/toggledlog/tlog/g' {} +
 2016-06-15 23:30:44 +02:00
Jakob Unterwurzacher
f2d208c464 configfile: use map[flagIota] for feature flags 
This should make things saner and more extensible. It prepares
the infrastructure for "required feature flags" that will be used
to deprecate old gocryptfs version.
 2016-06-05 12:54:45 +02:00
Jakob Unterwurzacher
b97268c948 configfile: bake the "Creator" gocryptfs version into the file 
This field is added for the convenience of users and
may help them to identify which gocryptfs version
they need to mount a filesystem.

The same information is essentially contained in FeatureFlags,
but this is more difficult to decode for humans.

It is completely ignored programmatically (also by older gocryptfs
versions).
 2016-06-05 11:40:13 +02:00
Jakob Unterwurzacher
b0ee5258b1 Fix tests - were broken by the refactoring 2016-02-06 20:22:45 +01:00
Jakob Unterwurzacher
2b8cbd9441 Major refactoring: Split up "cryptfs" into several internal packages 
"git status" for reference:

deleted:    cryptfs/cryptfs.go
deleted:    cryptfs/names_core.go
modified:   integration_tests/cli_test.go
modified:   integration_tests/helpers.go
renamed:    cryptfs/config_file.go -> internal/configfile/config_file.go
renamed:    cryptfs/config_test.go -> internal/configfile/config_test.go
renamed:    cryptfs/config_test/.gitignore -> internal/configfile/config_test/.gitignore
renamed:    cryptfs/config_test/PlaintextNames.conf -> internal/configfile/config_test/PlaintextNames.conf
renamed:    cryptfs/config_test/StrangeFeature.conf -> internal/configfile/config_test/StrangeFeature.conf
renamed:    cryptfs/config_test/v1.conf -> internal/configfile/config_test/v1.conf
renamed:    cryptfs/config_test/v2.conf -> internal/configfile/config_test/v2.conf
renamed:    cryptfs/kdf.go -> internal/configfile/kdf.go
renamed:    cryptfs/kdf_test.go -> internal/configfile/kdf_test.go
renamed:    cryptfs/cryptfs_content.go -> internal/contentenc/content.go
new file:   internal/contentenc/content_api.go
renamed:    cryptfs/content_test.go -> internal/contentenc/content_test.go
renamed:    cryptfs/file_header.go -> internal/contentenc/file_header.go
renamed:    cryptfs/intrablock.go -> internal/contentenc/intrablock.go
renamed:    cryptfs/address_translation.go -> internal/contentenc/offsets.go
new file:   internal/cryptocore/crypto_api.go
renamed:    cryptfs/gcm_go1.4.go -> internal/cryptocore/gcm_go1.4.go
renamed:    cryptfs/gcm_go1.5.go -> internal/cryptocore/gcm_go1.5.go
renamed:    cryptfs/nonce.go -> internal/cryptocore/nonce.go
renamed:    cryptfs/openssl_aead.go -> internal/cryptocore/openssl_aead.go
renamed:    cryptfs/openssl_benchmark.bash -> internal/cryptocore/openssl_benchmark.bash
renamed:    cryptfs/openssl_test.go -> internal/cryptocore/openssl_test.go
new file:   internal/nametransform/name_api.go
new file:   internal/nametransform/names_core.go
renamed:    cryptfs/names_diriv.go -> internal/nametransform/names_diriv.go
renamed:    cryptfs/names_noiv.go -> internal/nametransform/names_noiv.go
renamed:    cryptfs/names_test.go -> internal/nametransform/names_test.go
new file:   internal/nametransform/pad16.go
renamed:    cryptfs/log.go -> internal/toggledlog/log.go
renamed:    cryptfs/log_go1.4.go -> internal/toggledlog/log_go1.4.go
renamed:    cryptfs/log_go1.5.go -> internal/toggledlog/log_go1.5.go
modified:   main.go
modified:   masterkey.go
modified:   pathfs_frontend/file.go
modified:   pathfs_frontend/file_holes.go
modified:   pathfs_frontend/fs.go
modified:   pathfs_frontend/fs_dir.go
modified:   pathfs_frontend/names.go
modified:   test.bash
 2016-02-06 19:22:35 +01:00